Here is my weekly weather quiz question. What is a “Brocken Specter?” The first person to post the correct answer as a comment on this page will win a week of free personalized weather forecasts tailored to your needs.  Good luck.

________________

 

An Upper Level Low Pressure Trough (Shaded “U” shape with blue arrows) is pushing colder air and the next frontal system toward Oregon from the Gulf of Alaska.  The graphics for days 1-3 show the frontal system that pushes through the Pacific Northwest Tuesday night into Wednesday.

Note: The Autumnal Equinox officially ushers in the the season of Autumn this Friday September 22nd at 1:02 PM. The Autumn weather, however, didn’t wait until Friday.

________________

Air Quality Index:

Eugene-Springfield: The Air Quality Index is 29 in the Good category measuring Ozone.

Oakridge: The Air Quality Index is 21 in the Good category measuring Particulate Matter.

Cottage Grove: The Air Quality Index is 26 in the Good category measuring Ozone.

Data courtesy of Lane Regional Air Protection Agency (LRAPA)

 

__________________

Advisories:

• A FLASH FLOOD WATCH IS IN EFFECT THROUGH WEDNESDAY MORNING FOR FIRE BURN AREAS FOR THE WESTERN COLUMBIA RIVER GORGE, THE CENTRAL COLUMBIA RIVER GORGE, THE NORTHERN OREGON CASCADES AND THE CASCADES IN LANE COUNTY.
• A FLASH FLOOD WATCH IS IN EFFECT FROM TUESDAY EVENING THROUGH WEDNESDAY AFTERNOON FOR THE EASTERN DOUGLAS COUNTY FOOTHILLS.
• A FLASH FLOOD WATCH IS IN EFFECT FROM TUESDAY AFTERNOON THROUGH WEDNESDAY AFTERNOON FOR THE CURRY COUNTY COAST, EASTERN CURRY COUNTY, AND JOSEPHINE COUNTY.
• The Oregon Health Authority issued a Health Advisory for Willow Creek Reservoir, located just east of the town of Heppner in Morrow County. Water monitoring has confirmed the presence of blue-green algae and the toxins they produce in the reservoir. These toxin concentrations can be harmful to humans and animals. People should always avoid areas with visible scum that looks foamy, scummy, thick like paint, pea-green, blue-green or brownish-red. Swimming and high-speed water activities such as water skiing or power boating where ingestion and inhalation exposure can occur is discouraged. Swallowing or inhaling water droplets as a result of these water activities in areas where a bloom has been identified, or an advisory issued, can expose people to the toxins being produced. Although toxins are not absorbed through the skin, people who have skin sensitivities that come into contact with a bloom may experience a puffy, red rash at the affected area. Drinking water directly from Willow Creek Reservoir at this time is especially dangerous. OHA Public Health Division officials advise campers and other recreational visitors that toxins cannot be removed by boiling, filtering or treating water with camping-style filters.

• The Oregon Health Authority has updated the Health Advisory issued July 28 for Howard Bay (also known locally as Howards Bay or Howard’s Bay), located in the southwest corner of Upper Klamath Lake including Shoalwater Bay to the north and now all of Upper Klamath Lake. These areas of Upper Klamath Lake are located off Oregon Route 140, 15 miles west of Klamath Falls in Klamath County. Water monitoring has confirmed the presence of blue-green algae and the toxins they produce in Howard Bay. These toxin concentrations can be harmful to humans and animals. People should always avoid areas with visible scum that looks foamy, scummy, thick like paint, pea-green, blue green or brownish red. Swimming and high-speed water activities such as water skiing or power boating where ingestion and inhalation exposure can occur is discouraged. Swallowing or inhaling water droplets as a result of these water activities in areas where a bloom has been identified, or an advisory issued, can expose people to the toxins being produced. Although toxins are not absorbed through the skin, people who have skin sensitivities that come into contact with a bloom may experience a puffy, red rash at the affected area. Drinking water directly from Howard Bay and Shoalwater Bay at this time is especially dangerous. OHA Public Health Division officials advise campers and other recreational visitors that toxins cannot be removed by boiling, filtering or treating water with camping-style filters.
• A Health Advisory remains in effect for Agency Lake, located just north of Klamath Falls along U.S. Highway 97 in Klamath County. Water monitoring has confirmed the presence of blue-green algae and the toxins they produce in the lake. These toxin concentrations can be harmful to humans and animals. People should always avoid areas with visible scum that looks foamy, scummy, thick like paint, pea-green, blue green or brownish red. Swimming and high-speed water activities such as water skiing or power boating where ingestion and inhalation exposure can occur is discouraged. Swallowing or inhaling water droplets as a result of these water activities in areas where a bloom has been identified, or an advisory issued, can expose people to the toxins being produced. Although toxins are not absorbed through the skin, people who have skin sensitivities that come into contact with a bloom may experience a puffy, red rash at the affected area. Drinking water directly from Agency Lake at this time is especially dangerous. OHA Public Health Division officials advise campers and other recreational visitors that toxins cannot be removed by boiling, filtering or treating water with camping-style filters.
• A Health Advisory remains in effect for Willow Creek Reservoir, located just east of the town of Heppner in Morrow County. Water monitoring has confirmed the presence of blue-green algae and the toxins they produce in the reservoir. These toxin concentrations can be harmful to humans and animals. People should always avoid areas with visible scum that looks foamy, scummy, thick like paint, pea-green, blue green or brownish red. Swimming and high-speed water activities such as water skiing or power boating where ingestion and inhalation exposure can occur is discouraged. Swallowing or inhaling water droplets as a result of these water activities in areas where a bloom has been identified, or an advisory issued, can expose people to the toxins being produced. Although toxins are not absorbed through the skin, people who have skin sensitivities that come into contact with a bloom may experience a puffy, red rash at the affected area. Drinking water directly from Willow Creek Reservoir at this time is especially dangerous. OHA Public Health Division officials advise campers and other recreational visitors that toxins cannot be removed by boiling, filtering or treating water with camping-style filters.
• A Health Advisory remains in effect for Coffenbury Lake, located at Fort Stevens State Park about five miles northwest of US-101 ALT, Northwest Ridgefield Road near Warrenton in Clatsop County. Water monitoring has confirmed the presence of blue-green algae that can produce toxins in Coffenbury Lake. These blue-green algae levels are likely to be associated with dangerous cyanotoxin concentrations in the water that can be harmful to humans and animals.  People should always avoid areas with visible scum that looks foamy, scummy, thick like paint, pea-green, blue-green or brownish-red. Swimming and high-speed water activities such as water skiing or power boating where ingestion and inhalation exposure can occur are discouraged. Swallowing or inhaling water droplets as a result of these water activities in areas where a bloom has been identified or an advisory issued, can expose people to the toxins that can be produced. Although toxins are not absorbed through the skin, people with skin sensitivities who come into contact with a bloom may experience a puffy, red rash at the affected area. Drinking water directly from Coffenbury Lake at this time is especially dangerous. OHA Public Health Division officials advise campers and other recreational visitors that toxins cannot be removed by boiling, filtering or treating water with camping-style filters.
• A Permanent Health Advisory remains in effect for the South Umpqua River and Lawson Bar. Pools in the bedrock along the rivers edge are known to develop Blue-green Algae (cyanobacterial) blooms that can be harmful to pets and people if accidental ingestion occurs. Signs have been posted along several access areas along the river.

 

________________

Your College Football Forecast:

September 23rd: Preliminary forecast:

Ducks vs Arizona State, at Sun Devil Stadium, Tempe, Arizona  – Kickoff: 7:00 PM PDT – Clear 82, cooling as the game progresses, Wind: SSW 5-10 mph.

Beavers have a BYE week.

Next Beavers game-

September 30th:

Beavers vs Washington, at Reser Stadium.

________________

 

Forecast for the Southern and lower Mid Willamette Valley including Eugene-Springfield and Albany-Corvallis:

• Mostly cloudy with showers and a slight (20%) chance of evening thunderstorms, showers late tonight (0.50 in. of rain possible, more in storms),
• Showers and a bit cooler Tuesday (0.25 in. of rain possible), evening showers, rain increasing late at night (0.75 in. of rain possible),
• Mostly cloudy with showers and a bit cooler with a slight (20%) chance of thunderstorms Wednesday (0.25 in. of rain possible), showers likely (70%) with a slight (20%) chance of evening thunderstorms, a (40%) chance of showers late Wednesday night,
• Mostly cloudy and a bit warmer with a (40%) chance of showers Thursday and in the evening, partly cloudy with a (40%) chance of showers late Thursday night.
• lows 52-44 highs 62-58 warming back to 62 Thursday night.
• Partly cloudy with a slight (20%) chance of showers in the AM, partly cloudy and a bit warmer Friday, partly cloudy with patchy fog late at night and Saturday AM, a mix of clouds and sun and a bit warmer in the afternoon, partly cloudy with patchy fog late Saturday night and Sunday AM, mostly sunny and a bit warmer Sunday afternoon and Monday, mostly clear Sunday night.
• highs 65-75 lows 44-48. (seasonal averages high 76 low 46)

________________

 

Forecast for Roseburg:

• Mostly cloudy with showers tonight and patchy evening smoke (0.25 in. of rain possible),
• Mostly cloudy with showers and a bit cooler Tuesday (0.50 in. of rain possible), rain at night (0.50 in. of rain possible),
• Showers and a bit cooler Wednesday (0.50 in. of rain possible), cloudy with evening showers likely (70%) and a slight (20%) chance of thunderstorms, showers likely (70%) late at night,
• Mostly cloudy with a (40%) chance of showers and a bit warmer Thursday and Thursday night.
• lows 52-47 highs 62-60 warming back to 62 Thursday night.
• Mostly cloudy with a slight (20%) chance of showers Friday AM, partly cloudy and a bit warmer Friday afternoon and at night,
• Partly cloudy in the AM, sunny and a bit warmer Saturday afternoon, clear Saturday night,
• Then mostly sunny and a bit warmer Sunday and Monday, mostly clear at night.
• highs 68-79 lows 47-50. (seasonal averages high 78 low 51)

 

_____________________

Forecast for The South Oregon Coast Including Coos Bay and North Bend:

• Mostly cloudy with coastal showers and a slight (20%) chance of thunderstorms this evening and coastal showers late tonight while inland showers tonight (0.50 in. of rain possible),
• Mostly cloudy and a bit cooler with showers Tuesday (0.25 in. of rain possible), rain (0.50 in. of rain possible) and breezy at night (Wind: S 10-15 mph at the shore increasing and shifting SW 15-25 mph at the shore late at night while SW 5-15 mph inland),
• Mostly cloudy with coastal showers and showers and a slight (20%) chance of thunderstorms and a bit cooler Wednesday while showers (0.50 in. of rain possible) inland, evening showers with a slight (20%) chance of thunderstorms, showers likely (70%), late Wednesday night (0.50 in. of rain possible),
• Mostly cloudy with a good (50%) chance of showers and a bit warmer Thursday and Thursday night.
• lows 54-49 highs 62-58 warming back to 62 Thursday.
• A slight (20%) chance of AM showers Friday, sunny and a bit warmer in the afternoon, mostly clear in the evening, partly cloudy late Friday night,
• Then mostly sunny and a bit warmer Saturday, mostly clear at night,
• Mostly sunny and a bit cooler Sunday, mostly clear Sunday night,
• Then mostly sunny and a bit warmer Monday.
• highs 67-69 lows 50-53. (seasonal averages high 65 low 50)

________________

Forecast for the Cascades in Lane County:

• Mostly cloudy with showers and much cooler with a slight (20%) chance of isolated thunderstorms  this evening, showers tonight (1 in. of rain possible, more in storms, 1-5 i. of snow possible),
• Mostly cloudy and a bit cooler with showers Tuesday and in the evening (0.75 in. of rain possible, 1-5 in. of snow possible), rain increasing at night (1.50 in. of rain possible),
• Mostly cloudy showers and a bit cooler Wednesday with a slight (20%) chance of thunderstorms in the aeronaut and evening, then a good (50%) chance of showers late Wednesday night,
• Mostly cloudy with a good (50%) of showers and a bit warmer Thursday, a (40%) chance of evening showers, then partly cloudy with a (40%) chance of showers late at night.
• snow level 5,500 ft. tonight and Tuesday, 6,000 ft. Tuesday night, 5,500 ft. Wednesday and Wednesday night, 6,000 ft. Thursday, then 6,500 ft. Thursday night.
• lows 36-32 highs 42-40 warming to 43 Thursday.
• A mix of clouds and sun and a bit warmer Friday with a (40%) chance of showers, partly cloudy with a slight (20%) chance of evening showers, just partly cloudy late Friday night through Saturday night,
• A mix of clouds and sun Sunday AM, mostly sunny and a bit warmer in the afternoon and Monday, mostly clear Sunday night.
• snow level 7,000 ft. Friday, 7,500 ft. Friday night, free air freezing level 8,000 ft. Saturday, 9,000 ft. Saturday night, 10,000 ft. Sunday, then 11,000 ft. Sunday night and Monday.
• highs 47-62 lows 34-38.

 

________________

**Because weather forecasting is a combination of science, intuition, and timing there can be no absolute guarantees that individual forecasts will be 100% accurate. Nature is in a constant state of flux and sudden unexpected weather events can happen.

________________

Get your local Eugene-Springfield and Lane County news on-line at eugenedailynews.com.

________________

Here is my new weekly weather quiz question. What is a “Brocken Specter?” The first person to post the correct answer as a comment on this page will win a week of free personalized weather forecasts tailored to your needs.  Good luck.

________________

 

An Upper Level Low Pressure Trough (Shaded “U” shape with blue arrows) is slowly moving away from the Willamette Valley, but another trough is close behind and will help push the next frontal system over Oregon bringing cooler temperatures and much needed rain. As a result the smoke returned to the southern Willamette Valley and will retreat again with the rainy weather that began Sunday. The graphics for days 1-3 show the frontal system that pushes through the Pacific Northwest. The graphics for days 3-7 show a frontal system moving southeastward toward Oregon next Sunday.

Note: The Autumnal Equinox officially ushers in the the season of Autumn this Friday September 22nd at 1:02 PM.

________________

Air Quality Index:

Eugene-Springfield: The Air Quality Index is  in the Good category measuring Particulate Matter.

Oakridge: The Air Quality Index is  in the Good category measuring Particulate Matter.

Cottage Grove: The Air Quality Index is  in the Good category measuring Particulate Matter.

Data courtesy of Lane Regional Air Protection Agency (LRAPA)

Note: The LRAPA AQI program is currently not functioning. The numbers will be updated when the problem has been rectified.

 

__________________

Advisories:

• A FLASH FLOOD WATCH IS IN EFFECT THROUGH TUESDAY MORNING FOR THE WESTERN COLUMBIA RIVER GORGE, THE CENTRAL COLUMBIA RIVER GORGE, AND THE NORTHERN OREGON CASCADES.
• The Oregon Health Authority issued a Health Advisory for Willow Creek Reservoir, located just east of the town of Heppner in Morrow County. Water monitoring has confirmed the presence of blue-green algae and the toxins they produce in the reservoir. These toxin concentrations can be harmful to humans and animals. People should always avoid areas with visible scum that looks foamy, scummy, thick like paint, pea-green, blue-green or brownish-red. Swimming and high-speed water activities such as water skiing or power boating where ingestion and inhalation exposure can occur is discouraged. Swallowing or inhaling water droplets as a result of these water activities in areas where a bloom has been identified, or an advisory issued, can expose people to the toxins being produced. Although toxins are not absorbed through the skin, people who have skin sensitivities that come into contact with a bloom may experience a puffy, red rash at the affected area. Drinking water directly from Willow Creek Reservoir at this time is especially dangerous. OHA Public Health Division officials advise campers and other recreational visitors that toxins cannot be removed by boiling, filtering or treating water with camping-style filters.
• The Oregon Health Authority has updated the Health Advisory issued July 28 for Howard Bay (also known locally as Howards Bay or Howard’s Bay), located in the southwest corner of Upper Klamath Lake including Shoalwater Bay to the north and now all of Upper Klamath Lake. These areas of Upper Klamath Lake are located off Oregon Route 140, 15 miles west of Klamath Falls in Klamath County. Water monitoring has confirmed the presence of blue-green algae and the toxins they produce in Howard Bay. These toxin concentrations can be harmful to humans and animals. People should always avoid areas with visible scum that looks foamy, scummy, thick like paint, pea-green, blue green or brownish red. Swimming and high-speed water activities such as water skiing or power boating where ingestion and inhalation exposure can occur is discouraged. Swallowing or inhaling water droplets as a result of these water activities in areas where a bloom has been identified, or an advisory issued, can expose people to the toxins being produced. Although toxins are not absorbed through the skin, people who have skin sensitivities that come into contact with a bloom may experience a puffy, red rash at the affected area. Drinking water directly from Howard Bay and Shoalwater Bay at this time is especially dangerous. OHA Public Health Division officials advise campers and other recreational visitors that toxins cannot be removed by boiling, filtering or treating water with camping-style filters.
• A Health Advisory remains in effect for Agency Lake, located just north of Klamath Falls along U.S. Highway 97 in Klamath County. Water monitoring has confirmed the presence of blue-green algae and the toxins they produce in the lake. These toxin concentrations can be harmful to humans and animals. People should always avoid areas with visible scum that looks foamy, scummy, thick like paint, pea-green, blue green or brownish red. Swimming and high-speed water activities such as water skiing or power boating where ingestion and inhalation exposure can occur is discouraged. Swallowing or inhaling water droplets as a result of these water activities in areas where a bloom has been identified, or an advisory issued, can expose people to the toxins being produced. Although toxins are not absorbed through the skin, people who have skin sensitivities that come into contact with a bloom may experience a puffy, red rash at the affected area. Drinking water directly from Agency Lake at this time is especially dangerous. OHA Public Health Division officials advise campers and other recreational visitors that toxins cannot be removed by boiling, filtering or treating water with camping-style filters.
• A Health Advisory remains in effect for Willow Creek Reservoir, located just east of the town of Heppner in Morrow County. Water monitoring has confirmed the presence of blue-green algae and the toxins they produce in the reservoir. These toxin concentrations can be harmful to humans and animals. People should always avoid areas with visible scum that looks foamy, scummy, thick like paint, pea-green, blue green or brownish red. Swimming and high-speed water activities such as water skiing or power boating where ingestion and inhalation exposure can occur is discouraged. Swallowing or inhaling water droplets as a result of these water activities in areas where a bloom has been identified, or an advisory issued, can expose people to the toxins being produced. Although toxins are not absorbed through the skin, people who have skin sensitivities that come into contact with a bloom may experience a puffy, red rash at the affected area. Drinking water directly from Willow Creek Reservoir at this time is especially dangerous. OHA Public Health Division officials advise campers and other recreational visitors that toxins cannot be removed by boiling, filtering or treating water with camping-style filters.
• A Health Advisory remains in effect for Coffenbury Lake, located at Fort Stevens State Park about five miles northwest of US-101 ALT, Northwest Ridgefield Road near Warrenton in Clatsop County. Water monitoring has confirmed the presence of blue-green algae that can produce toxins in Coffenbury Lake. These blue-green algae levels are likely to be associated with dangerous cyanotoxin concentrations in the water that can be harmful to humans and animals.  People should always avoid areas with visible scum that looks foamy, scummy, thick like paint, pea-green, blue-green or brownish-red. Swimming and high-speed water activities such as water skiing or power boating where ingestion and inhalation exposure can occur are discouraged. Swallowing or inhaling water droplets as a result of these water activities in areas where a bloom has been identified or an advisory issued, can expose people to the toxins that can be produced. Although toxins are not absorbed through the skin, people with skin sensitivities who come into contact with a bloom may experience a puffy, red rash at the affected area. Drinking water directly from Coffenbury Lake at this time is especially dangerous. OHA Public Health Division officials advise campers and other recreational visitors that toxins cannot be removed by boiling, filtering or treating water with camping-style filters.
• A Permanent Health Advisory remains in effect for the South Umpqua River and Lawson Bar. Pools in the bedrock along the rivers edge are known to develop Blue-green Algae (cyanobacterial) blooms that can be harmful to pets and people if accidental ingestion occurs. Signs have been posted along several access areas along the river.

 

________________

Your College Football Forecast:

September 23rd: Preliminary forecast:

Ducks vs Arizona State, at Sun Devil Stadium, Tempe, Arizona  – Kickoff: 7:00 PM PDT – Clear 82, cooling as the game progresses, Wind: SSW 5-10 mph.

Beavers have a BYE week.

Next Beavers game-

September 30th:

Beavers vs Washington, at Reser Stadium.

________________

 

Forecast for the Southern and lower Mid Willamette Valley including Eugene-Springfield and Albany-Corvallis:

• Mostly cloudy with showers and a bit cooler today and a slight (20%) chance of afternoon and evening thunderstorms (0.50 in. of rain possible, more in storms), showers late tonight (0.50 in. of rain possible),
• Showers and a bit cooler Tuesday (0.50 in. of rain possible), evening rain possibly heavy at times, rain continuing at night (0.50 in. of rain possible),
• Mostly cloudy with showers and a bit cooler Wednesday (0.25 in. of rain possible) and Wednesday night.
• highs 62-60 lows 52-46.
• Mostly cloudy and a bit warmer with a good (50%) chance of showers Thursday and in the evening, partly cloudy with a (30%) chance of showers late Thursday night,
• A mix of clouds and sun with a slight (20%) chance of showers and a bit warmer Friday, partly cloudy with a slight (20%) chance of evening showers, just partly cloudy with patchy fog late Friday night and Saturday AM, a mix of clouds and sun and a bit warmer in the afternoon, partly cloudy with patchy fog late Saturday night and Sunday AM, then mostly sunny and a bit warmer Sunday afternoon.
• highs 63-74 lows 48-46. (seasonal averages high 77 low 47)

________________

 

Forecast for Roseburg:

• Mostly cloudy with patchy smoke and a much cooler with showers this afternoon (0.10 in. of rain possible), showers tonight with patchy evening smoke (0.25 in. of rain possible),
• Mostly cloudy with showers and a bit cooler Tuesday (0.50 in. of rain possible), rain at night (0.50 in. of rain possible),
• Mostly cloudy with showers and a bit cooler Wednesday (0.50 in. of rain possible), cloudy with evening showers likely (70%), a good (50%) chance of showers late at night.
• highs 63-60 lows 52-47.
• Cloudy with a (40%) chance of showers and a bit warmer Thursday and Thursday night,
• Mostly cloudy with a slight (20%) chance of showers Friday AM, partly cloudy and a bit warmer Friday afternoon and at night,
• Partly cloudy and a bit warmer Saturday through Sunday AM, then sunny and a bit warmer Sunday afternoon.
• highs 62-79 lows 50-48. (seasonal averages high 78 low 51)

 

_____________________

Forecast for The South Oregon Coast Including Coos Bay and North Bend:

• Mostly cloudy with showers and a bit cooler this afternoon (0.25 in. of rain possible) and tonight (0.50 in. of rain possible),
• Mostly cloudy and a bit warmer with showers Tuesday (0.25 in. of rain possible), rain (0.50 in. of rain possible) and breezy at night (Wind: S 10-20 mph at the shore increasing and shifting SW 20-30 mph at night while S 5-10 mph inland increasing and shifting SW 15-20 mph late at night),
• Then mostly cloudy with AM coastal showers and showers and a slight (20%) chance of thunderstorms and a bit cooler Wednesday while showers (0.50 in. of rain possible) inland, evening showers likely (70%), then a (40%) chance of showers late Wednesday night (0.50 in. of rain possible).
• highs 62-60 lows 53-50.
• Mostly cloudy with a good (50%) chance of showers and a bit warmer Thursday and Thursday night,
• A slight (20%) chance of AM showers Friday, partly cloudy and a bit warmer in the afternoon through Saturday night,
• Partly cloudy in the AM, then sunny and a bit warmer Sunday afternoon.
• highs 62-68 lows near 50. (seasonal averages high 65 low 50)

________________

Forecast for the Cascades in Lane County:

• Mostly cloudy with showers and a much cooler with a slight (20%) chance of isolated thunderstorms this afternoon (0.50 in. of rain possible, more in storms) and tonight (1 in. of rain possible, more in storms),
• Mostly cloudy and a bit warmer with showers Tuesday, rain at night,
• Then mostly cloudy showers and a bit cooler Wednesday and Wednesday night.
• snow level 6,000 ft. this afternoon, 5,500 ft. tonight and Tuesday, 6,000 ft. Tuesday night, then 5,500 ft. Wednesday and Wednesday night.
• highs 42-40 lows 36-32.
• Mostly cloudy with a good (50%) of showers and a bit warmer Thursday, a (40%) chance of showers at night,
• A mix of clouds and sun and a bit warmer Friday with a (30%) chance of showers, mostly cloudy with a slight (20%) chance of evening showers, partly cloudy late Friday night through Saturday night,
• Mostly sunny and a bit warmer Sunday.
• snow level 5,500 ft. Thursday, 6,000 ft. Thursday night and Friday, 7,000 ft. Friday night, 8,000 ft. Saturday, free air freezing level 9,000 ft. Saturday night, then 10,000 ft. Sunday.
• highs 43-62 lows 34-37.

 

________________

**Because weather forecasting is a combination of science, intuition, and timing there can be no absolute guarantees that individual forecasts will be 100% accurate. Nature is in a constant state of flux and sudden unexpected weather events can happen.

________________

Get your local Eugene-Springfield and Lane County news on-line at eugenedailynews.com.

________________

Here is my weekly weather quiz question for the last time. What is a “Bow Echo?” Here is the correct answer. A Bow Echo is a radar echo which is linear but bent outward in a bow shape. Damaging straight-line winds often occur near the “crest” or center of a bow echo. Areas of circulation also can develop at either end of a bow echo, which sometimes can lead to tornado formation – especially in the left (usually northern) end, where the circulation exhibits cyclonic rotation. I’ll have a new weekly weather quiz question for you starting Monday. The first person to post the correct answer as a comment on this page will win a week of free personalized weather forecasts tailored to your needs.  Good luck.

________________

 

An Upper Level Low Pressure Trough (Shaded “U” shape with blue arrows) is slowly moving away from the Willamette Valley, but another trough is close behind and will help push the next frontal system over Oregon bringing cooler temperatures and much needed rain. As a result the smoke returned to the southern Willamette Valley and will retreat again with the rainy weather that begins today. The graphics for days 1-3 show the frontal system pushing through the Pacific Northwest now. The graphics for days 3-7 show a frontal system moving southeastward toward Oregon next Sunday.

Note: The Autumnal Equinox officially ushers in the the season of Autumn this Friday September 22nd at 1:02 PM.

________________

Air Quality Index:

Eugene-Springfield: The Air Quality Index is 88 in the Moderate category measuring Particulate Matter.

Oakridge: The Air Quality Index is 135 in the Unhealthy for Sensitive Groups category measuring Particulate Matter.

Cottage Grove: The Air Quality Index is 65 in the Moderate category measuring Particulate Matter.

Data courtesy of Lane Regional Air Protection Agency (LRAPA)

Note: The LRAPA AQI program is currently not functioning. The numbers will be updated when the problem has been rectified.

 

__________________

Advisories:

• A FLASH FLOOD WATCH IS IN EFFECT THROUGH LATE TONIGHT FOR THE NORTHERN OREGON CASCADES, THE WESTERN COLUMBIA RIVER GORGE, AND THE CENTRAL COLUMBIA RIVER GORGE.
• AN AIR QUALITY ALERT IS IN EFFECT UNTIL 6 PM THIS EVENING FOR LANE COUNTY.
• AN AIR QUALITY ALERT IS IN EFFECT UNTIL 10 AM MONDAY FOR WASCO COUNTY AND HOOD RIVER COUNTY.
• The Oregon Health Authority issued a Health Advisory for Willow Creek Reservoir, located just east of the town of Heppner in Morrow County. Water monitoring has confirmed the presence of blue-green algae and the toxins they produce in the reservoir. These toxin concentrations can be harmful to humans and animals. People should always avoid areas with visible scum that looks foamy, scummy, thick like paint, pea-green, blue-green or brownish-red. Swimming and high-speed water activities such as water skiing or power boating where ingestion and inhalation exposure can occur is discouraged. Swallowing or inhaling water droplets as a result of these water activities in areas where a bloom has been identified, or an advisory issued, can expose people to the toxins being produced. Although toxins are not absorbed through the skin, people who have skin sensitivities that come into contact with a bloom may experience a puffy, red rash at the affected area. Drinking water directly from Willow Creek Reservoir at this time is especially dangerous. OHA Public Health Division officials advise campers and other recreational visitors that toxins cannot be removed by boiling, filtering or treating water with camping-style filters.
• The Oregon Health Authority has updated the Health Advisory issued July 28 for Howard Bay (also known locally as Howards Bay or Howard’s Bay), located in the southwest corner of Upper Klamath Lake including Shoalwater Bay to the north and now all of Upper Klamath Lake. These areas of Upper Klamath Lake are located off Oregon Route 140, 15 miles west of Klamath Falls in Klamath County. Water monitoring has confirmed the presence of blue-green algae and the toxins they produce in Howard Bay. These toxin concentrations can be harmful to humans and animals. People should always avoid areas with visible scum that looks foamy, scummy, thick like paint, pea-green, blue green or brownish red. Swimming and high-speed water activities such as water skiing or power boating where ingestion and inhalation exposure can occur is discouraged. Swallowing or inhaling water droplets as a result of these water activities in areas where a bloom has been identified, or an advisory issued, can expose people to the toxins being produced. Although toxins are not absorbed through the skin, people who have skin sensitivities that come into contact with a bloom may experience a puffy, red rash at the affected area. Drinking water directly from Howard Bay and Shoalwater Bay at this time is especially dangerous. OHA Public Health Division officials advise campers and other recreational visitors that toxins cannot be removed by boiling, filtering or treating water with camping-style filters.
• A Health Advisory remains in effect for Agency Lake, located just north of Klamath Falls along U.S. Highway 97 in Klamath County. Water monitoring has confirmed the presence of blue-green algae and the toxins they produce in the lake. These toxin concentrations can be harmful to humans and animals. People should always avoid areas with visible scum that looks foamy, scummy, thick like paint, pea-green, blue green or brownish red. Swimming and high-speed water activities such as water skiing or power boating where ingestion and inhalation exposure can occur is discouraged. Swallowing or inhaling water droplets as a result of these water activities in areas where a bloom has been identified, or an advisory issued, can expose people to the toxins being produced. Although toxins are not absorbed through the skin, people who have skin sensitivities that come into contact with a bloom may experience a puffy, red rash at the affected area. Drinking water directly from Agency Lake at this time is especially dangerous. OHA Public Health Division officials advise campers and other recreational visitors that toxins cannot be removed by boiling, filtering or treating water with camping-style filters.
• A Health Advisory remains in effect for Willow Creek Reservoir, located just east of the town of Heppner in Morrow County. Water monitoring has confirmed the presence of blue-green algae and the toxins they produce in the reservoir. These toxin concentrations can be harmful to humans and animals. People should always avoid areas with visible scum that looks foamy, scummy, thick like paint, pea-green, blue green or brownish red. Swimming and high-speed water activities such as water skiing or power boating where ingestion and inhalation exposure can occur is discouraged. Swallowing or inhaling water droplets as a result of these water activities in areas where a bloom has been identified, or an advisory issued, can expose people to the toxins being produced. Although toxins are not absorbed through the skin, people who have skin sensitivities that come into contact with a bloom may experience a puffy, red rash at the affected area. Drinking water directly from Willow Creek Reservoir at this time is especially dangerous. OHA Public Health Division officials advise campers and other recreational visitors that toxins cannot be removed by boiling, filtering or treating water with camping-style filters.
• A Health Advisory remains in effect for Coffenbury Lake, located at Fort Stevens State Park about five miles northwest of US-101 ALT, Northwest Ridgefield Road near Warrenton in Clatsop County. Water monitoring has confirmed the presence of blue-green algae that can produce toxins in Coffenbury Lake. These blue-green algae levels are likely to be associated with dangerous cyanotoxin concentrations in the water that can be harmful to humans and animals.  People should always avoid areas with visible scum that looks foamy, scummy, thick like paint, pea-green, blue-green or brownish-red. Swimming and high-speed water activities such as water skiing or power boating where ingestion and inhalation exposure can occur are discouraged. Swallowing or inhaling water droplets as a result of these water activities in areas where a bloom has been identified or an advisory issued, can expose people to the toxins that can be produced. Although toxins are not absorbed through the skin, people with skin sensitivities who come into contact with a bloom may experience a puffy, red rash at the affected area. Drinking water directly from Coffenbury Lake at this time is especially dangerous. OHA Public Health Division officials advise campers and other recreational visitors that toxins cannot be removed by boiling, filtering or treating water with camping-style filters.
• A Permanent Health Advisory remains in effect for the South Umpqua River and Lawson Bar. Pools in the bedrock along the rivers edge are known to develop Blue-green Algae (cyanobacterial) blooms that can be harmful to pets and people if accidental ingestion occurs. Signs have been posted along several access areas along the river.

 

________________

Your College Football Forecast:

September 23rd: Preliminary forecast:

Ducks vs Arizona State, at Sun Devil Stadium, Tempe, Arizona  – Kickoff: 7:00 PM PDT – Clear 82, cooling as the game progresses, Wind: SSW 5-10 mph.

Beavers have a BYE week.

Next Beavers game-

September 30th:

Beavers vs Washington, at Reser Stadium.

________________

 

Forecast for the Southern and lower Mid Willamette Valley including Eugene-Springfield and Albany-Corvallis:

• Cloudy with evening rain, showers decreasing late tonight (0.25 in. of rain possible),
• Mostly cloudy with showers and a bit cooler Monday and a slight (20%) chance of afternoon and evening thunderstorms (0.25 in. of rain possible, more in storms), showers late Monday night (0.50 in. of rain possible),
• Showers likely (60%) Tuesday AM, rain and a bit cooler in the afternoon and at night,
• Mostly cloudy with showers and a bit cooler Wednesday, showers likely (70%) in the evening, then a good (50%)  chance of showers late Wednesday night.
• lows 52-46 highs 62-60.
• Mostly cloudy and a bit warmer with a good (50%) chance of showers Thursday and in the evening, partly cloudy with a good (50%) chance of showers late Thursday night,
• A mix of clouds and sun with a (30%) chance of showers and a bit warmer Friday, partly cloudy with a slight (20%) chance of showers evening showers, just partly cloudy late Friday night,
• Patchy AM fog and low clouds Saturday AM, a mix of clouds and sun and a bit warmer in the afternoon, partly cloudy with patchy fog late Saturday night and Sunday AM, then mostly sunny and a bit warmer Sunday afternoon.
• highs 63-76 lows 48-46. (seasonal averages high 77 low 47)

________________

 

Forecast for Roseburg:

• Mostly cloudy with rain and areas of smoke tonight (0.10 in. of rain possible),
• Mostly cloudy with areas of AM smoke, patchy smoke and a much cooler Monday afternoon, showers likely (70%) with patchy smoke in the evening, showers late Monday night (0.25 in. of rain possible),
• Mostly cloudy with showers and a bit cooler Tuesday, rain at night,
• Mostly cloudy with AM showers likely (70%), showers and a bit cooler Wednesday afternoon, evening showers likely (70%), a good (50%) chance of showers late at night.
• lows 53-47 highs 62-60.
• Cloudy with a (40%) chance of showers and a bit warmer Thursday and Thursday night,
• Mostly cloudy with a slight (20%) chance of showers Friday AM, partly cloudy and a bit warmer Friday afternoon and at night,
• Partly cloudy and a bit warmer Saturday through Sunday AM, then sunny and a bit warmer Sunday afternoon.
• highs 62-80 lows 50-48. (seasonal averages high 78 low 51)

 

_____________________

Forecast for The South Oregon Coast Including Coos Bay and North Bend:

• Cloudy today with coastal rain this evening and rain likely (70%) late tonight while inland rain tonight (0.10 in. of rain possible),
• Mostly cloudy with a good (50%) chance of AM showers Monday, showers and a bit cooler in the afternoon (0.10 in. of rain possible) and at night (0.25 in. of rain possible),
• Mostly cloudy and a bit warmer with showers Tuesday, rain at night,
• Then mostly cloudy and a bit cooler with showers likely (70%) Wednesday and Wednesday night.
• lows 53-50 highs 60-62 cooling back to 60 Wednesday night.
• Mostly cloudy with a good (50%) chance of showers and a bit warmer Thursday and Thursday night,
• A slight (20%) chance of AM showers Friday, partly cloudy and a bit warmer in the afternoon through Saturday night,
• Partly cloudy in the AM, then sunny and a bit warmer Sunday afternoon.
• highs 62-66 lows 52-50. (seasonal averages high 65 low 50)

________________

Forecast for the Cascades in Lane County:

• Cloudy with evening rain, showers late tonight (0.50 in. of rain possible),
• Mostly cloudy with showers and much cooler Monday (0.50 in. of rain possible), rain and snow showers at night (1 in. of rain possible, 4-8 in. of snow possible),
• AM showers, mostly cloudy and a bit warmer with rain Tuesday afternoon and at night,
• Then mostly cloudy showers and a bit cooler Wednesday and Wednesday night.
• snow level above 8,000 ft. tonight, 7,500 ft. falling to 6,000 ft. Monday, 5,500 ft. Monday night and Tuesday, 6,500 ft. Tuesday night, 6,000 ft. Wednesday, then 5,500 ft. Wednesday night.
• lows 39-32 highs 42-40.
• Mostly cloudy with showers likely (70%) and a bit warmer Thursday and in the evening, a good (50%) chance of showers late at night,
• A mix of clouds and sun and a bit warmer Friday with a good (50%) chance of showers, mostly cloudy with a slight (20%) chance of evening showers, partly cloudy with a slight (20%) chance of showers Friday night and Saturday AM, just partly cloudy and a bit warmer in the afternoon and at night,
• Partly cloudy Sunday AM, then mostly sunny and a bit warmer in the afternoon.
• snow level 5,500 ft. Thursday, 6,000 ft. Thursday night and Friday, 6,500 ft. Friday night, 7,500 ft. Saturday, free air freezing level 10,000 ft. Saturday night, then 12,000 ft. Sunday.
• highs 43-62 lows 34-37.

 

________________

**Because weather forecasting is a combination of science, intuition, and timing there can be no absolute guarantees that individual forecasts will be 100% accurate. Nature is in a constant state of flux and sudden unexpected weather events can happen.

________________

Get your local Eugene-Springfield and Lane County news on-line at eugenedailynews.com.

________________

Here is my weekly weather quiz question for the last time. What is a “Bow Echo?” Here is the correct answer. A Bow Echo is a radar echo which is linear but bent outward in a bow shape. Damaging straight-line winds often occur near the “crest” or center of a bow echo. Areas of circulation also can develop at either end of a bow echo, which sometimes can lead to tornado formation – especially in the left (usually northern) end, where the circulation exhibits cyclonic rotation. I’ll have a new weekly weather quiz question for you starting Monday. The first person to post the correct answer as a comment on this page will win a week of free personalized weather forecasts tailored to your needs.  Good luck.

________________

 

An Upper Level Low Pressure Trough (Shaded “U” shape with blue arrows) is slowly moving away from the Willamette Valley, but another trough is close behind and will help push the next frontal system over Oregon bringing cooler temperatures and much needed rain. As a result the smoke returned to the southern Willamette Valley and will retreat again with the rainy weather that begins today. The graphics for days 1-3 show the frontal system pushing through the Pacific Northwest tonight and Monday. The graphics for days 3-7 show a frontal system moving into Oregon Wednesday.

Note: The Autumnal Equinox officially ushers in the the season of Autumn Friday September 22nd at 1:02 PM.

________________

Air Quality Index:

Eugene-Springfield: The Air Quality Index is 88 in the Moderate category measuring Particulate Matter.

Oakridge: The Air Quality Index is 135 in the Unhealthy for Sensitive Groups category measuring Particulate Matter.

Cottage Grove: The Air Quality Index is 65 in the Moderate category measuring Particulate Matter.

Data courtesy of Lane Regional Air Protection Agency (LRAPA)

 

__________________

Advisories:

• A FLASH FLOOD WATCH IS IN EFFECT FROM LATE THIS AFTERNOON THROUGH LTE TONIGHT FOR THE NORTHERN OREGON CASCADES, THE WESTERN COLUMBIA RIVER GORGE, AND THE CENTRAL COLUMBIA RIVER GORGE.
• AN AIR QUALITY ALERT IS IN EFFECT UNTIL 6 PM THIS EVENING FOR LANE COUNTY.
• AN AIR QUALITY ALERT IS IN EFFECT UNTIL 10 AM MONDAY FOR WASCO COUNTY AND HOOD RIVER COUNTY.
• The Oregon Health Authority issued a Health Advisory for Willow Creek Reservoir, located just east of the town of Heppner in Morrow County. Water monitoring has confirmed the presence of blue-green algae and the toxins they produce in the reservoir. These toxin concentrations can be harmful to humans and animals. People should always avoid areas with visible scum that looks foamy, scummy, thick like paint, pea-green, blue-green or brownish-red. Swimming and high-speed water activities such as water skiing or power boating where ingestion and inhalation exposure can occur is discouraged. Swallowing or inhaling water droplets as a result of these water activities in areas where a bloom has been identified, or an advisory issued, can expose people to the toxins being produced. Although toxins are not absorbed through the skin, people who have skin sensitivities that come into contact with a bloom may experience a puffy, red rash at the affected area. Drinking water directly from Willow Creek Reservoir at this time is especially dangerous. OHA Public Health Division officials advise campers and other recreational visitors that toxins cannot be removed by boiling, filtering or treating water with camping-style filters.
• The Oregon Health Authority has updated the Health Advisory issued July 28 for Howard Bay (also known locally as Howards Bay or Howard’s Bay), located in the southwest corner of Upper Klamath Lake including Shoalwater Bay to the north and now all of Upper Klamath Lake. These areas of Upper Klamath Lake are located off Oregon Route 140, 15 miles west of Klamath Falls in Klamath County. Water monitoring has confirmed the presence of blue-green algae and the toxins they produce in Howard Bay. These toxin concentrations can be harmful to humans and animals. People should always avoid areas with visible scum that looks foamy, scummy, thick like paint, pea-green, blue green or brownish red. Swimming and high-speed water activities such as water skiing or power boating where ingestion and inhalation exposure can occur is discouraged. Swallowing or inhaling water droplets as a result of these water activities in areas where a bloom has been identified, or an advisory issued, can expose people to the toxins being produced. Although toxins are not absorbed through the skin, people who have skin sensitivities that come into contact with a bloom may experience a puffy, red rash at the affected area. Drinking water directly from Howard Bay and Shoalwater Bay at this time is especially dangerous. OHA Public Health Division officials advise campers and other recreational visitors that toxins cannot be removed by boiling, filtering or treating water with camping-style filters.
• A Health Advisory remains in effect for Agency Lake, located just north of Klamath Falls along U.S. Highway 97 in Klamath County. Water monitoring has confirmed the presence of blue-green algae and the toxins they produce in the lake. These toxin concentrations can be harmful to humans and animals. People should always avoid areas with visible scum that looks foamy, scummy, thick like paint, pea-green, blue green or brownish red. Swimming and high-speed water activities such as water skiing or power boating where ingestion and inhalation exposure can occur is discouraged. Swallowing or inhaling water droplets as a result of these water activities in areas where a bloom has been identified, or an advisory issued, can expose people to the toxins being produced. Although toxins are not absorbed through the skin, people who have skin sensitivities that come into contact with a bloom may experience a puffy, red rash at the affected area. Drinking water directly from Agency Lake at this time is especially dangerous. OHA Public Health Division officials advise campers and other recreational visitors that toxins cannot be removed by boiling, filtering or treating water with camping-style filters.
• A Health Advisory remains in effect for Willow Creek Reservoir, located just east of the town of Heppner in Morrow County. Water monitoring has confirmed the presence of blue-green algae and the toxins they produce in the reservoir. These toxin concentrations can be harmful to humans and animals. People should always avoid areas with visible scum that looks foamy, scummy, thick like paint, pea-green, blue green or brownish red. Swimming and high-speed water activities such as water skiing or power boating where ingestion and inhalation exposure can occur is discouraged. Swallowing or inhaling water droplets as a result of these water activities in areas where a bloom has been identified, or an advisory issued, can expose people to the toxins being produced. Although toxins are not absorbed through the skin, people who have skin sensitivities that come into contact with a bloom may experience a puffy, red rash at the affected area. Drinking water directly from Willow Creek Reservoir at this time is especially dangerous. OHA Public Health Division officials advise campers and other recreational visitors that toxins cannot be removed by boiling, filtering or treating water with camping-style filters.
• A Health Advisory remains in effect for Coffenbury Lake, located at Fort Stevens State Park about five miles northwest of US-101 ALT, Northwest Ridgefield Road near Warrenton in Clatsop County. Water monitoring has confirmed the presence of blue-green algae that can produce toxins in Coffenbury Lake. These blue-green algae levels are likely to be associated with dangerous cyanotoxin concentrations in the water that can be harmful to humans and animals.  People should always avoid areas with visible scum that looks foamy, scummy, thick like paint, pea-green, blue-green or brownish-red. Swimming and high-speed water activities such as water skiing or power boating where ingestion and inhalation exposure can occur are discouraged. Swallowing or inhaling water droplets as a result of these water activities in areas where a bloom has been identified or an advisory issued, can expose people to the toxins that can be produced. Although toxins are not absorbed through the skin, people with skin sensitivities who come into contact with a bloom may experience a puffy, red rash at the affected area. Drinking water directly from Coffenbury Lake at this time is especially dangerous. OHA Public Health Division officials advise campers and other recreational visitors that toxins cannot be removed by boiling, filtering or treating water with camping-style filters.
• A Permanent Health Advisory remains in effect for the South Umpqua River and Lawson Bar. Pools in the bedrock along the rivers edge are known to develop Blue-green Algae (cyanobacterial) blooms that can be harmful to pets and people if accidental ingestion occurs. Signs have been posted along several access areas along the river.

 

________________

Your College Football Forecast:

September 23rd:

Ducks vs Arizona State, at Sun Devil Stadium, Tempe, Arizona  – Kickoff: 7:00 PM PDT – Too early for an accurate weather forecast.

Beavers have a BYE week.

Next Beavers game-

September 30th:

Beavers vs Washington, at Reser Stadium.

________________

 

Forecast for the Southern and lower Mid Willamette Valley including Eugene-Springfield and Albany-Corvallis:

• Cloudy and a bit cooler today with a good (50%) chance of afternoon rain (0.10 in. of rain possible), evening rain likely (70%), showers likely (70%) late tonight (0.25 in. of rain possible),
• Mostly cloudy with showers and a bit cooler Monday and a slight (20%) chance of afternoon and evening thunderstorms (0.25 in. of rain possible, more in storms), showers likely (70%) Monday night (0.25 in. of rain possible),
• Showers likely (60%) Tuesday, then rain and breezy at night.
• highs 70-62 lows near 52.
• Mostly cloudy with showers likely (70%) Wednesday, a good (50%) chance of showers Wednesday night,
• Mostly cloudy and a bit warmer with a good (50%) chance of showers Thursday and in the evening, partly cloudy with a good (50%) chance of showers late Thursday night,
• A slight (20%) chance of AM showers, a mix of clouds and sun with a slight (20%) chance of showers and a bit warmer Friday afternoon, partly cloudy with a slight (20%) chance of showers evening showers, then just partly cloudy and a bit warmer late Friday night and Saturday.
• highs 62-73 lows near 48. (seasonal averages high 77 low 47)

________________

 

Forecast for Roseburg:

• Mostly cloudy with patchy AM smoke, a bit cooler with a (30%) chance of rain this afternoon and evening, areas of smoke with rain likely (70%) late tonight (0.10 in. of rain possible),
• Mostly cloudy with AM rain and areas of smoke, showers likely (70%) with patchy smoke and a much cooler Monday afternoon (0.10 in. of rain possible) and evening, showers late Monday night (0.25 in. of rain possible),
• Mostly cloudy with showers and a bit warmer Tuesday, then rain at night.
• highs 73-63 warming to 65 Tuesday lows 55-52.
• Mostly cloudy and a bit cooler Wednesday afternoon and at night with showers likely (70%) Wednesday night,
• Cloudy with a good (50%) chance of showers Thursday and Thursday night,
• Mostly cloudy with a slight (20%) chance of showers Friday AM, partly cloudy and a bit warmer Friday afternoon and evening, then just partly cloudy late Friday night and Saturday, a bit warmer Saturday afternoon.
• highs 60-75 lows near 48. (seasonal averages high 79 low 51)

 

_____________________

Forecast for The South Oregon Coast Including Coos Bay and North Bend:

• Mostly cloudy today with a (30%) chance of rain and a bit warmer this afternoon (under 0.10 in. of rain possible), coastal rain tonight while evening inland rain likely (70%) and inland rain late tonight (0.10 in. of rain possible),
• Mostly cloudy with AM coastal showers likely (70%) and showers and a bit cooler in the afternoon and evening while a good (50%) chance of inland showers and a bit cooler Monday (0.10 in. of rain possible), coastal showers likely (70%) late at night while inland evening showers likely (70%) and inland showers late Monday night (0.25 in. of rain possible),
• Mostly cloudy and a bit warmer with showers likely (70%) Tuesday, then rain and breezy at night.
• highs 63-60 lows near 53.
• Mostly cloudy and a bit cooler with showers likely (70%) Wednesday and Wednesday night,
• A good (50%) chance of showers and a bit warmer Thursday and Thursday night,
• Mostly cloudy with a slight (20%) chance of AM showers Friday, partly cloudy and a bit warmer in the afternoon through Saturday.
• highs 57-63 lows 49-52. (seasonal averages high 65 low 50)

________________

Forecast for the Cascades in Lane County:

• A mix of clouds and sun with areas of AM smoke, a bit cooler with a slight (20%) chance of rain this afternoon, evening rain likely (70%), showers late tonight (0.75 in. of rain possible),
• Mostly cloudy with showers and much cooler Monday, rain and snow showers at night,
• AM rain and snow showers Tuesday, mostly cloudy with afternoon showers likely (70%), then rain and windy late Tuesday night.
• snow level above 8,000 ft. today and tonight, 7,500 ft. falling to 6,000 ft. Monday, 5,500 ft. Monday night and Tuesday, then 7,000 ft. Tuesday night.
• highs 60-42 lows 39-36.
• Mostly cloudy with AM showers, breezy with rain and snow showers and a bit cooler Wednesday afternoon and Wednesday night,
• AM rain and snow showers likely (70%), showers likely (70%) and a bit warmer Thursday afternoon and in the evening, a good (50%) chance of showers late at night,
• A mix of clouds and sun and a bit warmer Friday with a good (50%) chance of AM showers, a slight (20%) chance of showers in the afternoon, partly cloudy with a slight (20%) chance of showers Friday night and Saturday AM, then just partly cloudy and a bit warmer Saturday afternoon.
• snow level 6,000 ft. Wednesday, 5,500 ft. Wednesday night and Thursday, 6,000 ft. Thursday night and Friday, 6,500 ft. rising to 7,500 ft. Friday night, 7,500 ft. Saturday AM, then free air freezing level 10,000 ft. Saturday afternoon.
• highs 40-57 lows 35-37.

 

________________

**Because weather forecasting is a combination of science, intuition, and timing there can be no absolute guarantees that individual forecasts will be 100% accurate. Nature is in a constant state of flux and sudden unexpected weather events can happen.

________________

Get your local Eugene-Springfield and Lane County news on-line at eugenedailynews.com.

________________

Here is my weekly weather quiz question for the last time. What is a “Bow Echo?” Here is the correct answer. A Bow Echo is a radar echo which is linear but bent outward in a bow shape. Damaging straight-line winds often occur near the “crest” or center of a bow echo. Areas of circulation also can develop at either end of a bow echo, which sometimes can lead to tornado formation – especially in the left (usually northern) end, where the circulation exhibits cyclonic rotation. I’ll have a new weekly weather quiz question for you starting Monday. The first person to post the correct answer as a comment on this page will win a week of free personalized weather forecasts tailored to your needs.  Good luck.

________________

 

An Upper Level Low Pressure Trough (Shaded “U” shape with blue arrows) is slowly moving away from the Willamette Valley allowing daytime heating to increase, but another trough is close behind and will help push the next frontal system over Oregon bringing cooler temperatures and much needed rain. As a result the smoke has returned to the southern Willamette Valley and will retreat again with the rainy weather Sunday. The graphics for days 1-3 show the frontal system pushing through the Pacific Northwest Sunday night and Monday. The graphics for days 3-7 show a frontal system moving into Oregon Wednesday.

Note: The Autumnal Equinox officially ushers in the the season of Autumn next Friday September 22nd at 1:02 PM.

________________

Air Quality Index:

Eugene-Springfield: The Air Quality Index is 155 in the Unhealthy category measuring Particulate Matter.

Oakridge: The Air Quality Index is 101 in the Unhealthy for Sensitive Groups category measuring Particulate Matter.

Cottage Grove: The Air Quality Index is 115 in the Unhealthy for Sensitive Groups category measuring Particulate Matter.

Data courtesy of Lane Regional Air Protection Agency (LRAPA)

 

__________________

Advisories:

• AN AIR QUALITY ALERT IS IN EFFECT UNTIL 10 AM MONDAY FOR WASCO COUNTY.
• The Oregon Health Authority issued a Health Advisory for Willow Creek Reservoir, located just east of the town of Heppner in Morrow County. Water monitoring has confirmed the presence of blue-green algae and the toxins they produce in the reservoir. These toxin concentrations can be harmful to humans and animals. People should always avoid areas with visible scum that looks foamy, scummy, thick like paint, pea-green, blue-green or brownish-red. Swimming and high-speed water activities such as water skiing or power boating where ingestion and inhalation exposure can occur is discouraged. Swallowing or inhaling water droplets as a result of these water activities in areas where a bloom has been identified, or an advisory issued, can expose people to the toxins being produced. Although toxins are not absorbed through the skin, people who have skin sensitivities that come into contact with a bloom may experience a puffy, red rash at the affected area. Drinking water directly from Willow Creek Reservoir at this time is especially dangerous. OHA Public Health Division officials advise campers and other recreational visitors that toxins cannot be removed by boiling, filtering or treating water with camping-style filters.
• The Oregon Health Authority has updated the Health Advisory issued July 28 for Howard Bay (also known locally as Howards Bay or Howard’s Bay), located in the southwest corner of Upper Klamath Lake including Shoalwater Bay to the north and now all of Upper Klamath Lake. These areas of Upper Klamath Lake are located off Oregon Route 140, 15 miles west of Klamath Falls in Klamath County. Water monitoring has confirmed the presence of blue-green algae and the toxins they produce in Howard Bay. These toxin concentrations can be harmful to humans and animals. People should always avoid areas with visible scum that looks foamy, scummy, thick like paint, pea-green, blue green or brownish red. Swimming and high-speed water activities such as water skiing or power boating where ingestion and inhalation exposure can occur is discouraged. Swallowing or inhaling water droplets as a result of these water activities in areas where a bloom has been identified, or an advisory issued, can expose people to the toxins being produced. Although toxins are not absorbed through the skin, people who have skin sensitivities that come into contact with a bloom may experience a puffy, red rash at the affected area. Drinking water directly from Howard Bay and Shoalwater Bay at this time is especially dangerous. OHA Public Health Division officials advise campers and other recreational visitors that toxins cannot be removed by boiling, filtering or treating water with camping-style filters.
• A Health Advisory remains in effect for Agency Lake, located just north of Klamath Falls along U.S. Highway 97 in Klamath County. Water monitoring has confirmed the presence of blue-green algae and the toxins they produce in the lake. These toxin concentrations can be harmful to humans and animals. People should always avoid areas with visible scum that looks foamy, scummy, thick like paint, pea-green, blue green or brownish red. Swimming and high-speed water activities such as water skiing or power boating where ingestion and inhalation exposure can occur is discouraged. Swallowing or inhaling water droplets as a result of these water activities in areas where a bloom has been identified, or an advisory issued, can expose people to the toxins being produced. Although toxins are not absorbed through the skin, people who have skin sensitivities that come into contact with a bloom may experience a puffy, red rash at the affected area. Drinking water directly from Agency Lake at this time is especially dangerous. OHA Public Health Division officials advise campers and other recreational visitors that toxins cannot be removed by boiling, filtering or treating water with camping-style filters.
• A Health Advisory remains in effect for Willow Creek Reservoir, located just east of the town of Heppner in Morrow County. Water monitoring has confirmed the presence of blue-green algae and the toxins they produce in the reservoir. These toxin concentrations can be harmful to humans and animals. People should always avoid areas with visible scum that looks foamy, scummy, thick like paint, pea-green, blue green or brownish red. Swimming and high-speed water activities such as water skiing or power boating where ingestion and inhalation exposure can occur is discouraged. Swallowing or inhaling water droplets as a result of these water activities in areas where a bloom has been identified, or an advisory issued, can expose people to the toxins being produced. Although toxins are not absorbed through the skin, people who have skin sensitivities that come into contact with a bloom may experience a puffy, red rash at the affected area. Drinking water directly from Willow Creek Reservoir at this time is especially dangerous. OHA Public Health Division officials advise campers and other recreational visitors that toxins cannot be removed by boiling, filtering or treating water with camping-style filters.
• A Health Advisory remains in effect for Coffenbury Lake, located at Fort Stevens State Park about five miles northwest of US-101 ALT, Northwest Ridgefield Road near Warrenton in Clatsop County. Water monitoring has confirmed the presence of blue-green algae that can produce toxins in Coffenbury Lake. These blue-green algae levels are likely to be associated with dangerous cyanotoxin concentrations in the water that can be harmful to humans and animals.  People should always avoid areas with visible scum that looks foamy, scummy, thick like paint, pea-green, blue-green or brownish-red. Swimming and high-speed water activities such as water skiing or power boating where ingestion and inhalation exposure can occur are discouraged. Swallowing or inhaling water droplets as a result of these water activities in areas where a bloom has been identified or an advisory issued, can expose people to the toxins that can be produced. Although toxins are not absorbed through the skin, people with skin sensitivities who come into contact with a bloom may experience a puffy, red rash at the affected area. Drinking water directly from Coffenbury Lake at this time is especially dangerous. OHA Public Health Division officials advise campers and other recreational visitors that toxins cannot be removed by boiling, filtering or treating water with camping-style filters.
• A Permanent Health Advisory remains in effect for the South Umpqua River and Lawson Bar. Pools in the bedrock along the rivers edge are known to develop Blue-green Algae (cyanobacterial) blooms that can be harmful to pets and people if accidental ingestion occurs. Signs have been posted along several access areas along the river.

 

________________

Your College Football Forecast:

September 23rd:

Ducks vs Arizona State, at Sun Devil Stadium, Tempe, Arizona  – Kickoff: 7:00 PM PDT – Too early for an accurate weather forecast.

Beavers have a BYE week.

Next Beavers game-

September 30th:

Beavers vs Washington, at Reser Stadium.

________________

 

Forecast for the Southern and lower Mid Willamette Valley including Eugene-Springfield and Albany-Corvallis:

• Partly cloudy and a bit cooler with patchy smoke tonight,
• Cloudy and a bit cooler Sunday with a good (50%) chance of afternoon rain (under 0.10 in. of rain possible), evening rain likely (70%), showers likely (70%) late Sunday night (0.25 in. of rain possible),
• Mostly cloudy with showers and a bit cooler Monday (0.25 in. of rain possible) and Monday night (0.25 in. of rain possible),
• Showers likely (60%) Tuesday, then rain at night.
• lows 49-53 highs 72-62.
• Mostly cloudy with AM rain, showers likely (70%) Wednesday and in the evening, a good (50%) chance of showers late Wednesday night,
• Mostly cloudy and a bit warmer with a good (50%) chance of showers Thursday and in the evening, partly cloudy with a good (50%) chance of showers late Thursday night,
• A slight (20%) chance of AM showers, a mix of clouds and sun with a (30%) chance of showers and a bit warmer Friday afternoon, partly cloudy with a slight (20%) chance of showers Friday night and Saturday AM, then just partly cloudy and a bit warmer Saturday afternoon.
• highs 62-73 lows near 48. (seasonal averages high 77 low 47)

________________

 

Forecast for Roseburg:

• Partly cloudy with patchy smoke and a bit cooler tonight,
• Mostly cloudy with patchy AM smoke, a bit cooler with a (30%) chance of rain Sunday afternoon and evening, areas of smoke with rain at night (0.10 in. of rain possible),
• Mostly cloudy with AM showers likely (70%) and areas of smoke, showers with patchy smoke and a much cooler Monday afternoon (0.10 in. of rain possible), patchy smoke with evening showers likely (70%), showers late Monday night (0.25 in. of rain possible),
• Mostly cloudy with AM showers, showers likely (70%) and a bit warmer Tuesday afternoon, then rain at night.
• lows 52-55 cooling back to 52 Monday night and Tuesday night highs 73-63 warming to 65 Tuesday.
• Mostly cloudy with AM rain, rain likely (70%) and a bit cooler Wednesday afternoon, showers likely (70%) Wednesday night through Thursday night,
• Mostly cloudy with a slight (20%) chance of showers Friday AM, partly cloudy and a bit warmer with a slight (20%) chance of showers and a bit warmer Friday afternoon and at night,
• Then just partly cloudy and a bit warmer Saturday.
• highs 60-75 lows near 48. (seasonal averages high 79 low 51)

 

_____________________

Forecast for The South Oregon Coast Including Coos Bay and North Bend:

• Partly cloudy and a bit cooler this evening, mostly cloudy late tonight ,
• Mostly cloudy Sunday with a (30%) chance of rain and a bit warmer in the afternoon (under 0.10 in. of rain possible), coastal rain at night while evening inland rain likely (70%) and inland rain late Sunday night (0.10 in. of rain possible),
• Mostly cloudy with AM coastal showers likely (70%) and showers and a bit cooler in the afternoon and evening while a good (50%) chance of inland showers and a bit cooler Monday (0.10 in. of rain possible), coastal showers likely (70%) late at night while inland evening showers likely (70%) and inland showers late Monday night (0.25 in. of rain possible),
• Mostly cloudy with AM showers, a bit warmer with showers likely (70%) Tuesday afternoon, then rain  at night.
• lows near 53 highs 63-60.
• Mostly cloudy and a bit cooler with rain likely (70%) Wednesday and in the evening, a good (50%) chance of showers late Wednesday night,
• Showers likely (70%) and a bit warmer Thursday and Thursday night,
• Mostly cloudy with a slight (20%) chance of AM showers Friday, partly cloudy and a bit warmer with a slight (20%) chance of showers in the afternoon and evening, just partly cloudy late Friday night and Saturday AM, then sunny in the afternoon.
• highs 63-60 warming to 65 Friday lows 52-49. (seasonal averages high 65 low 50)

________________

Forecast for the Cascades in Lane County:

• Partly cloudy with areas of smoke tonight,
• A mix of clouds and sun Sunday with areas of AM smoke, a bit cooler with a slight (20%) chance of rain in the afternoon, evening rain likely (70%), showers late Sunday night,
• Mostly cloudy with showers and much cooler Monday and at night,
• AM rain and snow showers Tuesday, mostly cloudy with afternoon showers likely (70%), then rain late Tuesday night.
• free air freezing level 10,000 ft. tonight, snow level above 8,000 ft. Sunday and Sunday night, 7,500 ft. falling to 6,000 ft. Monday, 6,000 ft. Monday night, 5,500 ft. Tuesday, then 7,000 ft. rising to 8,000 ft. Tuesday night.
• lows 42-36 highs 60-42.
• Mostly cloudy with AM rain, rain and snow showers and a bit cooler Wednesday and Wednesday night,
• Rain and snow showers likely (70%) and a bit warmer Thursday and in the evening, a good (50%) chance of showers late at night,
• A mix of clouds and sun and a bit warmer Friday with a (40%) chance of AM showers, a slight (20%) chance of showers in the afternoon, partly cloudy with a slight (20%) chance of showers Friday night and Saturday AM, then just partly cloudy and a bit warmer Saturday afternoon.
• snow level 8,000 ft. falling to 6,500 ft. Wednesday, 5,500 ft. Wednesday night and Thursday, 6,000 ft. Thursday night and Friday, 6,500 ft. rising to 7,500 ft. Friday night, 7,500 ft. Saturday AM, then free air freezing level 10,000 ft. Saturday afternoon.
• highs 44-57 lows 35-37.

 

________________

**Because weather forecasting is a combination of science, intuition, and timing there can be no absolute guarantees that individual forecasts will be 100% accurate. Nature is in a constant state of flux and sudden unexpected weather events can happen.

________________

Get your local Eugene-Springfield and Lane County news on-line at eugenedailynews.com.

________________

Here is my weekly weather quiz question for the last time. What is a “Bow Echo?” Here is the correct answer.  ABow Echo is a radar echo which is linear but bent outward in a bow shape. Damaging straight-line winds often occur near the “crest” or center of a bow echo. Areas of circulation also can develop at either end of a bow echo, which sometimes can lead to tornado formation – especially in the left (usually northern) end, where the circulation exhibits cyclonic rotation. I’ll have a new weekly weather quiz question for you starting Monday. The first person to post the correct answer as a comment on this page will win a week of free personalized weather forecasts tailored to your needs.  Good luck.

________________

 

An Upper Level Low Pressure Trough (Shaded “U” shape with blue arrows) is slowly moving away from the Willamette Valley allowing daytime heating to increase, but another trough is close behind and will help push the next frontal system over Oregon bringing cooler temperatures and much needed rain. As a result the smoke has returned to the southern Willamette Valley and will retreat again with the rainy weather. The graphics for days 1-3 show the frontal system approaching the coast Sunday morning. The graphics for days 3-7 show that frontal system after it pushed through the Pacific Northwest.

Note: The Autumnal Equinox officially ushers in the the season of Autumn next Friday September 22nd at 1:02 PM.

________________

Air Quality Index:

Eugene-Springfield: The Air Quality Index is 58 in the Moderate category measuring Particulate Matter.

Oakridge: The Air Quality Index is 68 in the Moderate category measuring Particulate Matter.

Cottage Grove: The Air Quality Index is 61 in the Moderate category measuring Particulate Matter.

Data courtesy of Lane Regional Air Protection Agency (LRAPA)

 

__________________

Advisories:

• A  FREEZE WARNING IS IN EFFECT FROM 2 AM UNTIL 8 AM TODAY FOR THE KLAMATH BASIN, NORTHERN AND EASTERN KLAMATH COUNTY, AND WESTERN CENTRAL AND EASTERN LAKE COUNTY.
• A  FROST ADVISORY IS IN EFFECT FROM 2 AM UNTIL 8 AM TODAY FOR THE KLAMATH BASIN, NORTHERN AND EASTERN KLAMATH COUNTY, AND WESTERN CENTRAL AND EASTERN LAKE COUNTY.
• AN AIR QUALITY ALERT IS IN EFFECT UNTIL 6 PM SUNDAY FOR LANE COUNTY.
• AN AIR QUALITY ALERT IS IN EFFECT UNTIL 10 AM MONDAY FOR HOOD RIVER COUNTY AND WASCO COUNTY.
• The Oregon Health Authority issued a Health Advisory for Willow Creek Reservoir, located just east of the town of Heppner in Morrow County. Water monitoring has confirmed the presence of blue-green algae and the toxins they produce in the reservoir. These toxin concentrations can be harmful to humans and animals. People should always avoid areas with visible scum that looks foamy, scummy, thick like paint, pea-green, blue-green or brownish-red. Swimming and high-speed water activities such as water skiing or power boating where ingestion and inhalation exposure can occur is discouraged. Swallowing or inhaling water droplets as a result of these water activities in areas where a bloom has been identified, or an advisory issued, can expose people to the toxins being produced. Although toxins are not absorbed through the skin, people who have skin sensitivities that come into contact with a bloom may experience a puffy, red rash at the affected area. Drinking water directly from Willow Creek Reservoir at this time is especially dangerous. OHA Public Health Division officials advise campers and other recreational visitors that toxins cannot be removed by boiling, filtering or treating water with camping-style filters.
• The Oregon Health Authority has updated the Health Advisory issued July 28 for Howard Bay (also known locally as Howards Bay or Howard’s Bay), located in the southwest corner of Upper Klamath Lake including Shoalwater Bay to the north and now all of Upper Klamath Lake. These areas of Upper Klamath Lake are located off Oregon Route 140, 15 miles west of Klamath Falls in Klamath County. Water monitoring has confirmed the presence of blue-green algae and the toxins they produce in Howard Bay. These toxin concentrations can be harmful to humans and animals. People should always avoid areas with visible scum that looks foamy, scummy, thick like paint, pea-green, blue green or brownish red. Swimming and high-speed water activities such as water skiing or power boating where ingestion and inhalation exposure can occur is discouraged. Swallowing or inhaling water droplets as a result of these water activities in areas where a bloom has been identified, or an advisory issued, can expose people to the toxins being produced. Although toxins are not absorbed through the skin, people who have skin sensitivities that come into contact with a bloom may experience a puffy, red rash at the affected area. Drinking water directly from Howard Bay and Shoalwater Bay at this time is especially dangerous. OHA Public Health Division officials advise campers and other recreational visitors that toxins cannot be removed by boiling, filtering or treating water with camping-style filters.
• A Health Advisory remains in effect for Agency Lake, located just north of Klamath Falls along U.S. Highway 97 in Klamath County. Water monitoring has confirmed the presence of blue-green algae and the toxins they produce in the lake. These toxin concentrations can be harmful to humans and animals. People should always avoid areas with visible scum that looks foamy, scummy, thick like paint, pea-green, blue green or brownish red. Swimming and high-speed water activities such as water skiing or power boating where ingestion and inhalation exposure can occur is discouraged. Swallowing or inhaling water droplets as a result of these water activities in areas where a bloom has been identified, or an advisory issued, can expose people to the toxins being produced. Although toxins are not absorbed through the skin, people who have skin sensitivities that come into contact with a bloom may experience a puffy, red rash at the affected area. Drinking water directly from Agency Lake at this time is especially dangerous. OHA Public Health Division officials advise campers and other recreational visitors that toxins cannot be removed by boiling, filtering or treating water with camping-style filters.
• A Health Advisory remains in effect for Willow Creek Reservoir, located just east of the town of Heppner in Morrow County. Water monitoring has confirmed the presence of blue-green algae and the toxins they produce in the reservoir. These toxin concentrations can be harmful to humans and animals. People should always avoid areas with visible scum that looks foamy, scummy, thick like paint, pea-green, blue green or brownish red. Swimming and high-speed water activities such as water skiing or power boating where ingestion and inhalation exposure can occur is discouraged. Swallowing or inhaling water droplets as a result of these water activities in areas where a bloom has been identified, or an advisory issued, can expose people to the toxins being produced. Although toxins are not absorbed through the skin, people who have skin sensitivities that come into contact with a bloom may experience a puffy, red rash at the affected area. Drinking water directly from Willow Creek Reservoir at this time is especially dangerous. OHA Public Health Division officials advise campers and other recreational visitors that toxins cannot be removed by boiling, filtering or treating water with camping-style filters.
• A Health Advisory remains in effect for Coffenbury Lake, located at Fort Stevens State Park about five miles northwest of US-101 ALT, Northwest Ridgefield Road near Warrenton in Clatsop County. Water monitoring has confirmed the presence of blue-green algae that can produce toxins in Coffenbury Lake. These blue-green algae levels are likely to be associated with dangerous cyanotoxin concentrations in the water that can be harmful to humans and animals.  People should always avoid areas with visible scum that looks foamy, scummy, thick like paint, pea-green, blue-green or brownish-red. Swimming and high-speed water activities such as water skiing or power boating where ingestion and inhalation exposure can occur are discouraged. Swallowing or inhaling water droplets as a result of these water activities in areas where a bloom has been identified or an advisory issued, can expose people to the toxins that can be produced. Although toxins are not absorbed through the skin, people with skin sensitivities who come into contact with a bloom may experience a puffy, red rash at the affected area. Drinking water directly from Coffenbury Lake at this time is especially dangerous. OHA Public Health Division officials advise campers and other recreational visitors that toxins cannot be removed by boiling, filtering or treating water with camping-style filters.
• A Permanent Health Advisory remains in effect for the South Umpqua River and Lawson Bar. Pools in the bedrock along the rivers edge are known to develop Blue-green Algae (cyanobacterial) blooms that can be harmful to pets and people if accidental ingestion occurs. Signs have been posted along several access areas along the river.

 

________________

Your College Football Forecast:

Ducks vs Wyoming, at War Memorial Stadium – Laramie, Wyoming– Kickoff: 4:00 PM PDT – Mostly cloudy, 62 degrees and cooling as the game progresses, breezy – wind WSW to 20 mph.

Beavers vs Washington State, at Martin Stadium – Pullman, Washington– Kickoff: 2:30 PM PDT- Mostly sunny, 62 degrees warming to 66 degrees, then slow cooling toward the end of the game, wind ESE 10 mph.

________________

 

Forecast for the Southern and lower Mid Willamette Valley including Eugene-Springfield and Albany-Corvallis:

• Partly cloudy and a bit cooler with areas of smoke today and tonight,
• Patchy AM smoke, mostly cloudy with rain likely (70%) of rain and a bit cooler Sunday afternoon (under 0.10 in. of rain possible), rain at night (0.15 in. of rain possible),
• Mostly cloudy with showers and a bit cooler Monday and Monday night.
• highs 78-63 lows 50-52.
• Mostly cloudy with AM showers likely (60%), a good (50%) chance of showers and a bit warmer Tuesday afternoon and at night,
• Mostly cloudy with a (40%) chance of showers Wednesday, a (30%) chance of showers Wednesday night,
• A mix of clouds and sun and a bit warmer with a (30%) chance of showers Thursday, mostly cloudy with a (30%) chance of evening showers, partly cloudy with a slight (20%) chance of showers late Thursday night,
• A slight (20%) chance of AM showers, then a mix of clouds and sun Friday afternoon.
• highs 63-68 lows near 50. (seasonal averages high 77 low 47)

________________

 

Forecast for Roseburg:

• Mostly cloudy with patchy AM smoke, partly cloudy with patchy smoke and a bit cooler today and tonight,
• Mostly cloudy with patchy AM smoke, a bit cooler with a (30%) chance of rain Sunday afternoon, rain at night (0.15 in. of rain possible),
• Mostly cloudy with AM showers,  likely (70%), showers and a bit cooler Monday afternoon and Monday night.
• highs 82-63 lows 50-52 cooling back to 50 Monday night.
• Mostly cloudy with AM showers, a good (50%) chance of showers Tuesday afternoon through Wednesday night,
• Mostly cloudy and a bit warmer with a (30%) chance of showers Thursday, a slight (20%) chance of showers at night and Friday AM, just mostly cloudy Friday afternoon.
• highs 66-64 warming to 72 Friday lows 52-46. (seasonal averages high 79 low 51)

 

_____________________

Forecast for The South Oregon Coast Including Coos Bay and North Bend:

• Mostly cloudy this AM, partly cloudy and a bit cooler this afternoon and evening, mostly cloudy late tonight,
• Mostly cloudy with a (30%) chance of rain and a bit warmer Sunday afternoon (under 0.10 in. of rain possible), rain Sunday night (0.15 in. of rain possible),
• Cloudy with a good (50%) chance of AM showers, showers and cooler Monday afternoon and at night.
• highs 62-64 cooling back to 62 Monday lows near 52.
• Mostly cloudy with AM showers, a bit warmer with a good (50%) chance of showers Tuesday afternoon, mostly cloudy with a (40%) chance of showers Tuesday night through Thursday, a slight (20%) chance of showers Thursday night,
• Mostly cloudy Friday with a slight (20%) chance of AM showers.
• highs 63-60 warming to 65 Friday lows 52-49. (seasonal averages high 65 low 50)

________________

Forecast for the Cascades in Lane County:

• Partly cloudy and a bit warmer with areas of smoke this afternoon, partly cloudy with areas of smoke late tonight,
• A mix of clouds and sun with areas of AM smoke, a bit cooler with a good (50%) chance of rain Sunday afternoon, evening rain, rain and snow late Sunday night,
• Showers Monday AM, cooler with rain and snow showers in the afternoon and Monday night.
• free air freezing level 10,000 ft. today, 11,000 ft. tonight, snow level above 8,000 ft. Sunday and Sunday night, 6,000 ft. Monday, then 5,000 ft. Monday night.
• highs 65-44 lows 42-34.
• Mostly cloudy with rain and snow showers Tuesday AM, mostly cloudy with a good (50%) chance of showers in the afternoon and Tuesday night,
• Mostly cloudy with a good (50%) chance of showers and a bit warmer Wednesday through Thursday, a  (30%) chance of evening showers, party cloudy with a slight (20%) chance of showers at night,
• Then a mix of clouds and sun with a slight (20%) chance of showers Friday.
• snow level 5,000 ft. Tuesday, 6,000 ft. Tuesday night and Wednesday, 6,500 ft. falling to 5,000 ft. late Wednesday night, 5,000 ft. Thursday, 5,500 ft. Thursday night, then 6,500 ft. rising to 7,500 ft. Friday afternoon.
• highs 44-54 lows 34-36.

 

________________

**Because weather forecasting is a combination of science, intuition, and timing there can be no absolute guarantees that individual forecasts will be 100% accurate. Nature is in a constant state of flux and sudden unexpected weather events can happen.

________________

Get your local Eugene-Springfield and Lane County news on-line at eugenedailynews.com.

________________

Here is my weekly weather quiz question for the last time. What is a “Bow Echo?” Here is the correct answer.  ABow Echo is a radar echo which is linear but bent outward in a bow shape. Damaging straight-line winds often occur near the “crest” or center of a bow echo. Areas of circulation also can develop at either end of a bow echo, which sometimes can lead to tornado formation – especially in the left (usually northern) end, where the circulation exhibits cyclonic rotation. I’ll have a new weekly weather quiz question for you starting Monday. The first person to post the correct answer as a comment on this page will win a week of free personalized weather forecasts tailored to your needs.  Good luck.

________________

 

An Upper Level Low Pressure Trough (Shaded “U” shape with blue arrows) is slowly moving away from the Willamette Valley allowing daytime heating to increase, but another trough is close behind and will help push the next frontal system over Oregon bringing cooler temperatures and much needed rain. As a result the smoke has returned to the southern Willamette Valley and will retreat again with the rainy weather. The graphics for days 1-3 show the frontal system approaching the coast Sunday morning. The graphics for days 3-7 show that frontal system after it pushed through the Pacific Northwest.

Note: The Autumnal Equinox officially ushers in the the season of Autumn next Friday September 22nd at 1:02 PM.

________________

Air Quality Index:

Eugene-Springfield: The Air Quality Index is 81 in the Moderate category measuring Particulate Matter.

Oakridge: The Air Quality Index is 165 in the Unhealthy category measuring Particulate Matter.

Cottage Grove: The Air Quality Index is 99 in the Moderate category measuring Particulate Matter.

Data courtesy of Lane Regional Air Protection Agency (LRAPA)

 

__________________

Advisories:

• A  FREEZE WARNING IS IN EFFECT FROM 2 AM UNTIL 8 AM SATURDAY FOR THE KLAMATH BASIN, NORTHERN AND EASTERN KLAMATH COUNTY, AND WESTERN CENTRAL AND EASTERN LAKE COUNTY.
• A  FROST ADVISORY IS IN EFFECT FROM 2 AM UNTIL 8 AM SATURDAY FOR THE KLAMATH BASIN, NORTHERN AND EASTERN KLAMATH COUNTY, AND WESTERN CENTRAL AND EASTERN LAKE COUNTY.
• AN AIR QUALITY ALERT IS IN EFFECT UNTIL 6 PM SUNDAY FOR LANE COUNTY.
• AN AIR QUALITY ALERT IS IN EFFECT UNTIL 10 AM MONDAY FOR HOOD RIVER COUNTY AND WASCO COUNTY.
• The Oregon Health Authority issued a Health Advisory for Willow Creek Reservoir, located just east of the town of Heppner in Morrow County. Water monitoring has confirmed the presence of blue-green algae and the toxins they produce in the reservoir. These toxin concentrations can be harmful to humans and animals. People should always avoid areas with visible scum that looks foamy, scummy, thick like paint, pea-green, blue-green or brownish-red. Swimming and high-speed water activities such as water skiing or power boating where ingestion and inhalation exposure can occur is discouraged. Swallowing or inhaling water droplets as a result of these water activities in areas where a bloom has been identified, or an advisory issued, can expose people to the toxins being produced. Although toxins are not absorbed through the skin, people who have skin sensitivities that come into contact with a bloom may experience a puffy, red rash at the affected area. Drinking water directly from Willow Creek Reservoir at this time is especially dangerous. OHA Public Health Division officials advise campers and other recreational visitors that toxins cannot be removed by boiling, filtering or treating water with camping-style filters.
• The Oregon Health Authority has updated the Health Advisory issued July 28 for Howard Bay (also known locally as Howards Bay or Howard’s Bay), located in the southwest corner of Upper Klamath Lake including Shoalwater Bay to the north and now all of Upper Klamath Lake. These areas of Upper Klamath Lake are located off Oregon Route 140, 15 miles west of Klamath Falls in Klamath County. Water monitoring has confirmed the presence of blue-green algae and the toxins they produce in Howard Bay. These toxin concentrations can be harmful to humans and animals. People should always avoid areas with visible scum that looks foamy, scummy, thick like paint, pea-green, blue green or brownish red. Swimming and high-speed water activities such as water skiing or power boating where ingestion and inhalation exposure can occur is discouraged. Swallowing or inhaling water droplets as a result of these water activities in areas where a bloom has been identified, or an advisory issued, can expose people to the toxins being produced. Although toxins are not absorbed through the skin, people who have skin sensitivities that come into contact with a bloom may experience a puffy, red rash at the affected area. Drinking water directly from Howard Bay and Shoalwater Bay at this time is especially dangerous. OHA Public Health Division officials advise campers and other recreational visitors that toxins cannot be removed by boiling, filtering or treating water with camping-style filters.
• A Health Advisory remains in effect for Agency Lake, located just north of Klamath Falls along U.S. Highway 97 in Klamath County. Water monitoring has confirmed the presence of blue-green algae and the toxins they produce in the lake. These toxin concentrations can be harmful to humans and animals. People should always avoid areas with visible scum that looks foamy, scummy, thick like paint, pea-green, blue green or brownish red. Swimming and high-speed water activities such as water skiing or power boating where ingestion and inhalation exposure can occur is discouraged. Swallowing or inhaling water droplets as a result of these water activities in areas where a bloom has been identified, or an advisory issued, can expose people to the toxins being produced. Although toxins are not absorbed through the skin, people who have skin sensitivities that come into contact with a bloom may experience a puffy, red rash at the affected area. Drinking water directly from Agency Lake at this time is especially dangerous. OHA Public Health Division officials advise campers and other recreational visitors that toxins cannot be removed by boiling, filtering or treating water with camping-style filters.
• A Health Advisory remains in effect for Willow Creek Reservoir, located just east of the town of Heppner in Morrow County. Water monitoring has confirmed the presence of blue-green algae and the toxins they produce in the reservoir. These toxin concentrations can be harmful to humans and animals. People should always avoid areas with visible scum that looks foamy, scummy, thick like paint, pea-green, blue green or brownish red. Swimming and high-speed water activities such as water skiing or power boating where ingestion and inhalation exposure can occur is discouraged. Swallowing or inhaling water droplets as a result of these water activities in areas where a bloom has been identified, or an advisory issued, can expose people to the toxins being produced. Although toxins are not absorbed through the skin, people who have skin sensitivities that come into contact with a bloom may experience a puffy, red rash at the affected area. Drinking water directly from Willow Creek Reservoir at this time is especially dangerous. OHA Public Health Division officials advise campers and other recreational visitors that toxins cannot be removed by boiling, filtering or treating water with camping-style filters.
• A Health Advisory remains in effect for Coffenbury Lake, located at Fort Stevens State Park about five miles northwest of US-101 ALT, Northwest Ridgefield Road near Warrenton in Clatsop County. Water monitoring has confirmed the presence of blue-green algae that can produce toxins in Coffenbury Lake. These blue-green algae levels are likely to be associated with dangerous cyanotoxin concentrations in the water that can be harmful to humans and animals.  People should always avoid areas with visible scum that looks foamy, scummy, thick like paint, pea-green, blue-green or brownish-red. Swimming and high-speed water activities such as water skiing or power boating where ingestion and inhalation exposure can occur are discouraged. Swallowing or inhaling water droplets as a result of these water activities in areas where a bloom has been identified or an advisory issued, can expose people to the toxins that can be produced. Although toxins are not absorbed through the skin, people with skin sensitivities who come into contact with a bloom may experience a puffy, red rash at the affected area. Drinking water directly from Coffenbury Lake at this time is especially dangerous. OHA Public Health Division officials advise campers and other recreational visitors that toxins cannot be removed by boiling, filtering or treating water with camping-style filters.
• A Permanent Health Advisory remains in effect for the South Umpqua River and Lawson Bar. Pools in the bedrock along the rivers edge are known to develop Blue-green Algae (cyanobacterial) blooms that can be harmful to pets and people if accidental ingestion occurs. Signs have been posted along several access areas along the river.

 

________________

Your College Football Forecast:

Ducks vs Wyoming, at War Memorial Stadium – Laramie, Wyoming– Kickoff: 4:00 PM PDT – Mostly cloudy, 62 degrees and cooling as the game progresses, breezy – wind WSW to 20 mph.

Beavers vs Washington State, at Martin Stadium – Pullman, Washington– Kickoff: 2:30 PM PDT- Mostly sunny, 62 degrees warming to 66 degrees, then slow cooling toward the end of the game, wind ESE 10 mph.

________________

 

Forecast for the Southern and lower Mid Willamette Valley including Eugene-Springfield and Albany-Corvallis:

• Partly cloudy with areas of smoke late tonight,
• Partly cloudy and a bit cooler with areas of smoke Saturday and Saturday night,
• Patchy AM smoke, mostly cloudy with rain likely (70%) and a bit cooler Sunday afternoon (under 0.10 in. of rain possible), rain at night (0.15 in. of rain possible),
• Mostly cloudy with showers and a bit cooler Monday and Monday night.
• lows 48-52 highs 78-63.
• Mostly cloudy with AM showers likely (60%), a good (50%) chance of showers and a bit warmer Tuesday afternoon and at night,
• Mostly cloudy with a (40%) chance of showers Wednesday, a (30%) chance of showers Wednesday night,
• A mix of clouds and sun and a bit warmer with a (30%) chance of showers Thursday, mostly cloudy with a (%) chance of evening showers, partly cloudy with a slight (20%) chance of showers late Thursday night,
• A slight (20%) chance of AM showers, then a mix of clouds and sun Friday afternoon.
• highs 63-68 lows near 50. (seasonal averages high 77 low 47)

________________

 

Forecast for Roseburg:

• Clear this evening, partly cloudy with patchy smoke late tonight,
• Partly cloudy with patchy smoke and a bit cooler Saturday and Saturday night,
• Mostly cloudy with patchy AM smoke, a bit cooler with a (30%) chance of rain Sunday afternoon, rain at night (0.15 in. of rain possible),
• Mostly cloudy with AM showers likely (70%), showers and a bit cooler Monday afternoon and Monday night.
• lows 50-52 cooling back to 50 Monday night highs 82-63.
• Mostly cloudy with AM showers, a good (50%) chance of showers in the afternoon through Wednesday night,
• Mostly cloudy and a bit warmer with a (30%) chance of showers Thursday, a slight (20%) chance of showers at night and Friday AM, just mostly cloudy Friday afternoon.
• highs 66-64 warming to 72 Friday lows 52-46. (seasonal averages high 79 low 52)

 

_____________________

Forecast for The South Oregon Coast Including Coos Bay and North Bend:

• Mostly clear this evening, becoming mostly cloudy late tonight and Saturday AM, partly cloudy and a bit cooler Saturday afternoon and evening, mostly cloudy late Saturday night,
• Mostly cloudy with a (30%) chance of rain and a bit warmer Sunday afternoon (under 0.10 in. of rain possible), rain Sunday night (0.15 in. of rain possible),
• Cloudy with a good (50%) chance of AM showers, showers and cooler Monday afternoon and at night.
• lows 52-50 highs 62-64 cooling back to 62 Monday.
• Mostly cloudy with AM showers, a bit warmer with a good (50%) chance of showers Tuesday afternoon, mostly cloudy with a (40%) chance of showers Tuesday night through Thursday, a slight (20%) chance of showers Thursday night,
• Mostly cloudy Friday with a slight (20%) chance of AM showers in the afternoon.
• highs 63-60 warming to 65 Friday lows 52-48. (seasonal averages high 65 low 50)

________________

Forecast for the Cascades in Lane County:

• Mostly clear with areas of smoke tonight,
• AM sun, partly cloudy and a bit warmer with areas of smoke Saturday afternoon, mostly cloudy with areas of evening smoke, partly cloudy with areas of smoke late Saturday night,
• A mix of clouds and sun with areas of AM smoke, a bit cooler with a good (50%) chance of rain Sunday afternoon, evening rain, rain and snow late Sunday night,
• Showers Monday AM, cooler with rain and snow showers in the afternoon and Monday night.
• free air freezing level 11,000 ft. tonight through Saturday night, snow level above 8,000 ft. Sunday and Sunday night, 6,000 ft. Monday, then 5,000 ft. Monday night.
• highs 65-44 lows 42-34.
• Mostly cloudy with rain and snow showers Tuesday AM, mostly cloudy with a good (50%) chance of showers in the afternoon and Tuesday night,
• Mostly cloudy with a good (50%) chance of showers and a bit warmer Wednesday through Thursday, a  (30%) chance of evening showers, party cloudy with a slight (20%) chance of showers at night,
• Then a mix of clouds and sun with a slight (20%) chance of showers Friday.
• snow level 5,000 ft. Tuesday, 6,000 ft. Tuesday night and Wednesday, 6,500 ft. falling to 5,000 ft. late Wednesday night, 5,000 ft. Thursday, 5,500 ft. Thursday night, then 6,500 ft. rising to 7,500 ft. Friday afternoon.
• highs 44-54 lows 34-36.

 

________________

**Because weather forecasting is a combination of science, intuition, and timing there can be no absolute guarantees that individual forecasts will be 100% accurate. Nature is in a constant state of flux and sudden unexpected weather events can happen.

________________

Get your local Eugene-Springfield and Lane County news on-line at eugenedailynews.com.

________________

Here is my new weekly weather quiz question. What is a “Bow Echo?” The first person to post the correct answer as a comment on this page will win a week of free personalized weather forecasts tailored to your needs.  Good luck.

________________

 

An Upper Level Low Pressure Trough (Shaded “U” shape with blue arrows) returns marine airflow to the Willamette Valley for a while cooling us down. We warm a bit more today, but the smoke has returned to the southern Willamette Valley. The graphics for days 3-7 show a frontal system that will push through the Pacific Northwest Sunday into Monday.

________________

Air Quality Index:

Eugene-Springfield: The Air Quality Index is 184 in the Unhealthy category measuring Particulate Matter.

Oakridge: The Air Quality Index is 52 in the Moderate category measuring Particulate Matter.

Cottage Grove: The Air Quality Index is 41 in the Good category measuring Particulate Matter.

Data courtesy of Lane Regional Air Protection Agency (LRAPA)

 

__________________

Advisories:

• A  FREEZE WARNING IS IN EFFECT FROM 2 AM UNTIL 8 AM SATURDAY FOR THE KLAMATH BASIN, NORTHERN AND EASTERN KLAMATH COUNTY, AND WESTERN CENTRAL AND EASTERN LAKE COUNTY.
• A  FROST ADVISORY IS IN EFFECT FROM 2 AM UNTIL 8 AM SATURDAY FOR THE KLAMATH BASIN, NORTHERN AND EASTERN KLAMATH COUNTY, AND WESTERN CENTRAL AND EASTERN LAKE COUNTY.
• AN AIR QUALITY ALERT IS IN EFFECT UNTIL 10 AM TODAY FOR WASCO COUNTY AND BENTON COUNTY .
• The Oregon Health Authority issued a Health Advisory for Willow Creek Reservoir, located just east of the town of Heppner in Morrow County. Water monitoring has confirmed the presence of blue-green algae and the toxins they produce in the reservoir. These toxin concentrations can be harmful to humans and animals. People should always avoid areas with visible scum that looks foamy, scummy, thick like paint, pea-green, blue-green or brownish-red. Swimming and high-speed water activities such as water skiing or power boating where ingestion and inhalation exposure can occur is discouraged. Swallowing or inhaling water droplets as a result of these water activities in areas where a bloom has been identified, or an advisory issued, can expose people to the toxins being produced. Although toxins are not absorbed through the skin, people who have skin sensitivities that come into contact with a bloom may experience a puffy, red rash at the affected area. Drinking water directly from Willow Creek Reservoir at this time is especially dangerous. OHA Public Health Division officials advise campers and other recreational visitors that toxins cannot be removed by boiling, filtering or treating water with camping-style filters.
• The Oregon Health Authority has updated the Health Advisory issued July 28 for Howard Bay (also known locally as Howards Bay or Howard’s Bay), located in the southwest corner of Upper Klamath Lake including Shoalwater Bay to the north and now all of Upper Klamath Lake. These areas of Upper Klamath Lake are located off Oregon Route 140, 15 miles west of Klamath Falls in Klamath County. Water monitoring has confirmed the presence of blue-green algae and the toxins they produce in Howard Bay. These toxin concentrations can be harmful to humans and animals. People should always avoid areas with visible scum that looks foamy, scummy, thick like paint, pea-green, blue green or brownish red. Swimming and high-speed water activities such as water skiing or power boating where ingestion and inhalation exposure can occur is discouraged. Swallowing or inhaling water droplets as a result of these water activities in areas where a bloom has been identified, or an advisory issued, can expose people to the toxins being produced. Although toxins are not absorbed through the skin, people who have skin sensitivities that come into contact with a bloom may experience a puffy, red rash at the affected area. Drinking water directly from Howard Bay and Shoalwater Bay at this time is especially dangerous. OHA Public Health Division officials advise campers and other recreational visitors that toxins cannot be removed by boiling, filtering or treating water with camping-style filters.
• A Health Advisory remains in effect for Agency Lake, located just north of Klamath Falls along U.S. Highway 97 in Klamath County. Water monitoring has confirmed the presence of blue-green algae and the toxins they produce in the lake. These toxin concentrations can be harmful to humans and animals. People should always avoid areas with visible scum that looks foamy, scummy, thick like paint, pea-green, blue green or brownish red. Swimming and high-speed water activities such as water skiing or power boating where ingestion and inhalation exposure can occur is discouraged. Swallowing or inhaling water droplets as a result of these water activities in areas where a bloom has been identified, or an advisory issued, can expose people to the toxins being produced. Although toxins are not absorbed through the skin, people who have skin sensitivities that come into contact with a bloom may experience a puffy, red rash at the affected area. Drinking water directly from Agency Lake at this time is especially dangerous. OHA Public Health Division officials advise campers and other recreational visitors that toxins cannot be removed by boiling, filtering or treating water with camping-style filters.
• A Health Advisory remains in effect for Willow Creek Reservoir, located just east of the town of Heppner in Morrow County. Water monitoring has confirmed the presence of blue-green algae and the toxins they produce in the reservoir. These toxin concentrations can be harmful to humans and animals. People should always avoid areas with visible scum that looks foamy, scummy, thick like paint, pea-green, blue green or brownish red. Swimming and high-speed water activities such as water skiing or power boating where ingestion and inhalation exposure can occur is discouraged. Swallowing or inhaling water droplets as a result of these water activities in areas where a bloom has been identified, or an advisory issued, can expose people to the toxins being produced. Although toxins are not absorbed through the skin, people who have skin sensitivities that come into contact with a bloom may experience a puffy, red rash at the affected area. Drinking water directly from Willow Creek Reservoir at this time is especially dangerous. OHA Public Health Division officials advise campers and other recreational visitors that toxins cannot be removed by boiling, filtering or treating water with camping-style filters.
• A Health Advisory remains in effect for Coffenbury Lake, located at Fort Stevens State Park about five miles northwest of US-101 ALT, Northwest Ridgefield Road near Warrenton in Clatsop County. Water monitoring has confirmed the presence of blue-green algae that can produce toxins in Coffenbury Lake. These blue-green algae levels are likely to be associated with dangerous cyanotoxin concentrations in the water that can be harmful to humans and animals.  People should always avoid areas with visible scum that looks foamy, scummy, thick like paint, pea-green, blue-green or brownish-red. Swimming and high-speed water activities such as water skiing or power boating where ingestion and inhalation exposure can occur are discouraged. Swallowing or inhaling water droplets as a result of these water activities in areas where a bloom has been identified or an advisory issued, can expose people to the toxins that can be produced. Although toxins are not absorbed through the skin, people with skin sensitivities who come into contact with a bloom may experience a puffy, red rash at the affected area. Drinking water directly from Coffenbury Lake at this time is especially dangerous. OHA Public Health Division officials advise campers and other recreational visitors that toxins cannot be removed by boiling, filtering or treating water with camping-style filters.
• A Permanent Health Advisory remains in effect for the South Umpqua River and Lawson Bar. Pools in the bedrock along the rivers edge are known to develop Blue-green Algae (cyanobacterial) blooms that can be harmful to pets and people if accidental ingestion occurs. Signs have been posted along several access areas along the river.

 

________________

Your College Football Forecast:

Ducks vs Wyoming, at War Memorial Stadium – Laramie, Wyoming– Kickoff: 4:00 PM PDT – Partly cloudy, 62 degrees and cooling as the game progresses, breezy – wind WSW 20 mph.

Beavers vs Washington State, at Martin Stadium – Pullman, Washington– Kickoff: 2:30 PM PDT- Mostly sunny, 62 degrees warming to 66 degrees, then slow cooling toward the end of the game, wind ESE 10 mph.

________________

 

Forecast for the Southern and lower Mid Willamette Valley including Eugene-Springfield and Albany-Corvallis:

• Sunny and a bit warmer with patchy smoke this afternoon, clear this evening, partly cloudy with patchy smoke late tonight,
• Partly cloudy and a bit cooler with patchy smoke Saturday, mostly cloudy Saturday night,
• Mostly cloudy with rain likely (70%) and a bit cooler Sunday afternoon, then rain at night.
• highs 80-72 lows 48-52.
• Cloudy with showers and a bit cooler Monday and Monday night,
• Mostly cloudy with AM showers likely (60%), a good (50%) chance of showers and a bit warmer Tuesday afternoon, mostly cloudy with a good (50%) chance of showers at night,
• A mix of clouds and sun with a (40%) chance of showers Wednesday, a (30%) chance of showers Wednesday night,
• Then a mix of clouds and sun and a bit warmer with a (30%) chance of showers Thursday.
• highs 62-69 lows near 50. (seasonal averages high 78 low 47)

________________

 

Forecast for Roseburg:

• Sunny and a bit warmer with patchy smoke this afternoon, mostly clear with patchy smoke late tonight,
• Partly cloudy with patchy AM smoke, mostly cloudy and a bit cooler Saturday afternoon, partly cloudy late Saturday night,
• Mostly cloudy and a bit cooler with a (40%) chance of rain Sunday afternoon, evening rain likely (70%), then rain late at night.
• highs 80-82 cooling to 72Sunday night lows 50-52.
• Mostly cloudy with showers and a bit cooler Monday and Monday night,
• Cloudy with showers Tuesday AM, a good (50%) chance of showers in the afternoon and at night,
• Mostly cloudy with a (40%) chance of showers Wednesday and Wednesday night,
• Then mostly cloudy and a bit warmer with a (30%) chance of showers Thursday.
• highs 63-68 cooling to 66 Wednesday warming to 70 Thursday lows 48-50 cooling back to 48 Wednesday night. (seasonal averages high 79 low 52)

 

_____________________

Forecast for The South Oregon Coast Including Coos Bay and North Bend:

• Sunny and a bit warmer this afternoon, clear this evening, becoming mostly cloudy late tonight,
• Mostly cloudy and a bit cooler Saturday, mostly clear in the evening, mostly cloudy late Saturday night,
• Mostly cloudy with a (40%) chance of rain and a bit warmer Sunday afternoon, rain Sunday night.
• highs 65-60 warming back to 65 Sunday lows 52-50.
• Mostly cloudy with showers and cooler Monday and at night,
• Cloudy with AM showers, a bit cooler with a good (50%) chance of showers Tuesday afternoon, mostly cloudy with evening showers likely (70%), a (30%) chance of showers Tuesday night,
• Then mostly cloudy with a (30%) chance of showers and a bit warmer Wednesday through Thursday.
• highs 62-65 lows 48-50 cooling back to 48 Wednesday night. (seasonal averages high 65 low 50)

________________

Forecast for the Cascades in Lane County:

• Sunny with areas of smoke and a bit warmer today, mostly clear with areas of smoke tonight,
• AM sun, a mix of clouds and sun and a bit warmer with areas of smoke Saturday afternoon, mostly cloudy with areas of evening smoke, partly cloudy with areas of smoke late Saturday night,
• A mix of clouds and sun and a bit cooler with a good (50%) chance of rain Sunday afternoon, evening rain, then rain and snow late Sunday night.
• free air freezing level 9,000 ft. this afternoon, 10,000 ft. rising to 11,000 ft. late tonight, 10,000 ft. Saturday and Saturday night, snow level above 8,000 ft. Sunday, then above 8,000 ft. falling to 6,500 ft. late Sunday night.
• highs 62-65 cooling to 60 Sunday lows 40-42 cooling back to 40 Sunday night.
• Showers Monday AM, cooler with rain and snow showers in the afternoon through Tuesday AM, showers likely (70%) in the afternoon and evening, a (40%) chance of showers late Tuesday night,
• Then mostly cloudy with a (40%) chance of showers and a bit warmer Wednesday, a (30%) chance of showers at night,
• Then mostly cloudy with a (30%) chance of showers Thursday.
• snow level 6,000 ft. falling to 5,500 ft. Monday, 5,500 ft. Monday night, 6,000 ft. Tuesday afternoon through Wednesday night, then 6,500 ft. Thursday.
• highs 46-52 lows 36-38.

 

________________

**Because weather forecasting is a combination of science, intuition, and timing there can be no absolute guarantees that individual forecasts will be 100% accurate. Nature is in a constant state of flux and sudden unexpected weather events can happen.

________________

Get your local Eugene-Springfield and Lane County news on-line at eugenedailynews.com.

________________

Here is my new weekly weather quiz question. What is a “Bow Echo?” The first person to post the correct answer as a comment on this page will win a week of free personalized weather forecasts tailored to your needs.  Good luck.

________________

 

An Upper Level Low Pressure Trough (Shaded “U” shape with blue arrows) returns marine airflow to the Willamette Valley for a while cooling us down. The graphics for days 3-7 show a frontal system that will push through the Pacific Northwest Sunday into Monday.

________________

Air Quality Index:

Eugene-Springfield: The Air Quality Index is 40 in the Good category measuring Ozone.

Oakridge: The Air Quality Index is 24 in the Good category measuring Particulate Matter.

Cottage Grove: The Air Quality Index is 42 in the Good category measuring Ozone.

Data courtesy of Lane Regional Air Protection Agency (LRAPA)

 

__________________

Advisories:

• A FREEZE WARNING IS IN EFFECT FROM 2 AM UNTIL 8 PM FRIDAY FOR THE KLAMATH BASIN, NORTHERN AND EASTERN KLAMATH COUNTY, AND WESTERN CENTRAL AND EASTERN LAKE COUNTY.
• A FROST ADVISORY IS IN EFFECT FROM 2 AM UNTIL 8 AM FRIDAY FOR THE KLAMATH BASIN, NORTHERN AND EASTERN KLAMATH COUNTY, AND WESTERN CENTRAL AND EASTERN LAKE COUNTY.
• A  FREEZE WATCH IS IN EFFECT FROM LATE FRIDAY NIGHT THROUGH SATURDAY MORNING FOR THE KLAMATH BASIN, NORTHERN AND EASTERN KLAMATH COUNTY, AND WESTERN CENTRAL AND EASTERN LAKE COUNTY.
• AN AIR QUALITY ALERT IS IN EFFECT UNTIL 10 AM FRIDAY FOR WASCO COUNTY.
• The Oregon Health Authority issued a Health Advisory for Willow Creek Reservoir, located just east of the town of Heppner in Morrow County. Water monitoring has confirmed the presence of blue-green algae and the toxins they produce in the reservoir. These toxin concentrations can be harmful to humans and animals. People should always avoid areas with visible scum that looks foamy, scummy, thick like paint, pea-green, blue-green or brownish-red. Swimming and high-speed water activities such as water skiing or power boating where ingestion and inhalation exposure can occur is discouraged. Swallowing or inhaling water droplets as a result of these water activities in areas where a bloom has been identified, or an advisory issued, can expose people to the toxins being produced. Although toxins are not absorbed through the skin, people who have skin sensitivities that come into contact with a bloom may experience a puffy, red rash at the affected area. Drinking water directly from Willow Creek Reservoir at this time is especially dangerous. OHA Public Health Division officials advise campers and other recreational visitors that toxins cannot be removed by boiling, filtering or treating water with camping-style filters.
• The Oregon Health Authority has updated the Health Advisory issued July 28 for Howard Bay (also known locally as Howards Bay or Howard’s Bay), located in the southwest corner of Upper Klamath Lake including Shoalwater Bay to the north and now all of Upper Klamath Lake. These areas of Upper Klamath Lake are located off Oregon Route 140, 15 miles west of Klamath Falls in Klamath County. Water monitoring has confirmed the presence of blue-green algae and the toxins they produce in Howard Bay. These toxin concentrations can be harmful to humans and animals. People should always avoid areas with visible scum that looks foamy, scummy, thick like paint, pea-green, blue green or brownish red. Swimming and high-speed water activities such as water skiing or power boating where ingestion and inhalation exposure can occur is discouraged. Swallowing or inhaling water droplets as a result of these water activities in areas where a bloom has been identified, or an advisory issued, can expose people to the toxins being produced. Although toxins are not absorbed through the skin, people who have skin sensitivities that come into contact with a bloom may experience a puffy, red rash at the affected area. Drinking water directly from Howard Bay and Shoalwater Bay at this time is especially dangerous. OHA Public Health Division officials advise campers and other recreational visitors that toxins cannot be removed by boiling, filtering or treating water with camping-style filters.
• A Health Advisory remains in effect for Agency Lake, located just north of Klamath Falls along U.S. Highway 97 in Klamath County. Water monitoring has confirmed the presence of blue-green algae and the toxins they produce in the lake. These toxin concentrations can be harmful to humans and animals. People should always avoid areas with visible scum that looks foamy, scummy, thick like paint, pea-green, blue green or brownish red. Swimming and high-speed water activities such as water skiing or power boating where ingestion and inhalation exposure can occur is discouraged. Swallowing or inhaling water droplets as a result of these water activities in areas where a bloom has been identified, or an advisory issued, can expose people to the toxins being produced. Although toxins are not absorbed through the skin, people who have skin sensitivities that come into contact with a bloom may experience a puffy, red rash at the affected area. Drinking water directly from Agency Lake at this time is especially dangerous. OHA Public Health Division officials advise campers and other recreational visitors that toxins cannot be removed by boiling, filtering or treating water with camping-style filters.
• A Health Advisory remains in effect for Willow Creek Reservoir, located just east of the town of Heppner in Morrow County. Water monitoring has confirmed the presence of blue-green algae and the toxins they produce in the reservoir. These toxin concentrations can be harmful to humans and animals. People should always avoid areas with visible scum that looks foamy, scummy, thick like paint, pea-green, blue green or brownish red. Swimming and high-speed water activities such as water skiing or power boating where ingestion and inhalation exposure can occur is discouraged. Swallowing or inhaling water droplets as a result of these water activities in areas where a bloom has been identified, or an advisory issued, can expose people to the toxins being produced. Although toxins are not absorbed through the skin, people who have skin sensitivities that come into contact with a bloom may experience a puffy, red rash at the affected area. Drinking water directly from Willow Creek Reservoir at this time is especially dangerous. OHA Public Health Division officials advise campers and other recreational visitors that toxins cannot be removed by boiling, filtering or treating water with camping-style filters.
• A Health Advisory remains in effect for Coffenbury Lake, located at Fort Stevens State Park about five miles northwest of US-101 ALT, Northwest Ridgefield Road near Warrenton in Clatsop County. Water monitoring has confirmed the presence of blue-green algae that can produce toxins in Coffenbury Lake. These blue-green algae levels are likely to be associated with dangerous cyanotoxin concentrations in the water that can be harmful to humans and animals.  People should always avoid areas with visible scum that looks foamy, scummy, thick like paint, pea-green, blue-green or brownish-red. Swimming and high-speed water activities such as water skiing or power boating where ingestion and inhalation exposure can occur are discouraged. Swallowing or inhaling water droplets as a result of these water activities in areas where a bloom has been identified or an advisory issued, can expose people to the toxins that can be produced. Although toxins are not absorbed through the skin, people with skin sensitivities who come into contact with a bloom may experience a puffy, red rash at the affected area. Drinking water directly from Coffenbury Lake at this time is especially dangerous. OHA Public Health Division officials advise campers and other recreational visitors that toxins cannot be removed by boiling, filtering or treating water with camping-style filters.
• A Permanent Health Advisory remains in effect for the South Umpqua River and Lawson Bar. Pools in the bedrock along the rivers edge are known to develop Blue-green Algae (cyanobacterial) blooms that can be harmful to pets and people if accidental ingestion occurs. Signs have been posted along several access areas along the river.

 

________________

Your College Football Forecast:

Saturday September 16th–

Ducks vs Wyoming, at War Memorial Stadium – Laramie, Wyoming– Kickoff: 4:00 PM PDT – Mostly cloudy, 62 degrees and cooling as the game progresses, wind WSW 15 mph.

Beavers vs Washington State, at Martin Stadium – Pullman, Washington– Kickoff: 2:30 PM PDT- Sunny and Hazy smoke, 62 degrees warming to 66 degrees, then slow cooling toward the end of the game, wind NE 10 mph.

________________

 

Forecast for the Southern and lower Mid Willamette Valley including Eugene-Springfield and Albany-Corvallis:

• Clear tonight,
• Sunny and a bit warmer Friday, clear in the evening, partly cloudy late at night,
• Partly cloudy and a bit cooler Saturday, mostly cloudy Saturday night,
• Mostly cloudy with a slight (20%) chance of AM rain, rain likely (70%) and a bit cooler Sunday afternoon,  rain Sunday night.
• lows 46-52 highs 80-72.
• Cloudy with showers and a bit cooler Monday and Monday night,
• AM showers, a mix of clouds and sun with a good (50%) chance of showers and a bit warmer Tuesday afternoon, mostly cloudy with a good (50%) chance of showers at night,
• A mix of clouds and sun with a (40%) chance of showers Wednesday, a (30%) chance of showers Wednesday night,
• Then a mix of clouds and sun and a bit warmer with a (30%) chance of showers Thursday.
• highs 62-69 lows near 50. (seasonal averages high 78 low 47)

________________

 

Forecast for Roseburg:

• Clear tonight,
• Sunny and a bit warmer with patchy smoke Friday, mostly clear with patchy smoke Friday night,
• Partly cloudy with patchy AM smoke, mostly cloudy and a bit cooler Saturday afternoon, mostly clear in the evening, partly cloudy late Saturday night,
• Mostly cloudy and a bit cooler with a (40%) chance of rain Sunday afternoon, then rain at night.
• lows 47-52 highs 80-74.
• Mostly cloudy with showers and a bit cooler Monday and Monday night,
• Cloudy with showers Tuesday AM, a good (50%) chance of showers in the afternoon and at night,
• Mostly cloudy with a (30%) chance of showers Wednesday and Wednesday night,
• Then mostly cloudy and a bit warmer with a (30%) chance of showers Thursday.
• highs 63-70 lows 48-52. (seasonal averages high 79 low 52)

 

_____________________

Forecast for The South Oregon Coast Including Coos Bay and North Bend:

• Clear this evening at the shore and mostly cloudy late tonight while clear inland tonight,
• AM clouds and sunny and a bit warmer Friday afternoon at the shore while sunny inland all day, mostly clear in the evening, partly cloudy late at night,
• Mostly cloudy and a bit cooler Saturday, mostly clear in the evening, mostly cloudy Saturday night,
• Mostly cloudy with rain and a bit warmer Sunday afternoon and Sunday night.
• lows 49-52 highs 65-60 warming to 64 Sunday.
• Mostly cloudy with showers and cooler Monday and at night,
• Cloudy with AM showers, a bit cooler with a good (50%) chance of showers Tuesday afternoon, mostly cloudy with a (30%) chance of showers Tuesday night,
• Then mostly cloudy with a (30%) chance of showers and a bit warmer Wednesday through Thursday.
• highs 60-65 lows 50-52. (seasonal averages high 65 low 50)

________________

Forecast for the Cascades in Lane County:

• Clear with areas of smoke tonight,
• Mostly sunny with areas of smoke and a bit warmer Friday, mostly clear with areas of smoke at night,
• AM sun, a mix of clouds and sun and a bit warmer with areas of smoke Saturday afternoon, mostly cloudy with areas of evening smoke, partly cloudy with areas of smoke late Saturday night,
• A slight (20%) chance of AM rain, mostly cloudy and a bit cooler with a good (50%) chance of rain Sunday afternoon, evening rain, then rain and snow late Sunday night.
• free air freezing level 10,000 ft. falling to 9,000 ft. late tonight, 9,000 ft. rising to 10,000 ft. Friday, 10,000 ft. rising to 11,000 ft. late Friday night, 10,000 ft. Saturday, 11,000 ft. falling to 10,000 ft. Saturday night, snow level above 8,000 ft. Sunday, then above 8,000 ft. falling to 6,000 ft. late Sunday night.
• lows 36-42 cooling to 40 Sunday night highs 62-64 cooling to 60 Sunday.
• Showers Monday AM, cooler with rain and snow showers in the afternoon through Tuesday AM, showers likely (70%) in the afternoon and evening, a (40%) chance of showers late Tuesday night,
• Then mostly cloudy with a (40%) chance of showers and a bit warmer Wednesday through Thursday.
• snow level 6,000 ft. falling to 5,500 ft. Monday, 5,500 ft. rising to 6,000 ft. late Monday night, 6,000 ft. rising to 6,500 ft. Tuesday afternoon, then 6,500 ft. Tuesday night, 6,5000 ft. falling to 6,000 ft. Wednesday, 6,000 ft. rising to 6,500 ft. Wednesday night, then 6,500 ft. Thursday.
• highs 46-52 lows 36-38.

 

________________

**Because weather forecasting is a combination of science, intuition, and timing there can be no absolute guarantees that individual forecasts will be 100% accurate. Nature is in a constant state of flux and sudden unexpected weather events can happen.

________________

Get your local Eugene-Springfield and Lane County news on-line at eugenedailynews.com.

________________

Here is my new weekly weather quiz question. What is a “Bow Echo?” The first person to post the correct answer as a comment on this page will win a week of free personalized weather forecasts tailored to your needs.  Good luck.

________________

 

An Upper Level Low Pressure Trough (Shaded “U” shape with blue arrows) returns marine airflow to the Willamette Valley for a while cooling us down. The graphics for days 3-7 show a frontal system that will push through the Pacific Northwest Monday night into Tuesday.

________________

Air Quality Index:

Eugene-Springfield: The Air Quality Index is 26 in the Good category measuring Ozone.

Oakridge: The Air Quality Index is 24 in the Good category measuring Particulate Matter.

Cottage Grove: The Air Quality Index is 25 in the Good category measuring Ozone.

Data courtesy of Lane Regional Air Protection Agency (LRAPA)

 

 

 

__________________

Advisories:

• A FREEZE WATCH IS IN EFFECT FROM 2 AM UNTIL 8 PM FRIDAY FOR THE KLAMATH BASIN, NORTHERN AND EASTERN KLAMATH COUNTY, AND WESTERN CENTRAL AND EASTERN LAKE COUNTY.
• AN AIR QUALITY ALERT IS IN EFFECT UNTIL 10 AM FRIDAY FOR WASCO COUNTY.
• The Oregon Health Authority issued a Health Advisory for Willow Creek Reservoir, located just east of the town of Heppner in Morrow County. Water monitoring has confirmed the presence of blue-green algae and the toxins they produce in the reservoir. These toxin concentrations can be harmful to humans and animals. People should always avoid areas with visible scum that looks foamy, scummy, thick like paint, pea-green, blue-green or brownish-red. Swimming and high-speed water activities such as water skiing or power boating where ingestion and inhalation exposure can occur is discouraged. Swallowing or inhaling water droplets as a result of these water activities in areas where a bloom has been identified, or an advisory issued, can expose people to the toxins being produced. Although toxins are not absorbed through the skin, people who have skin sensitivities that come into contact with a bloom may experience a puffy, red rash at the affected area. Drinking water directly from Willow Creek Reservoir at this time is especially dangerous. OHA Public Health Division officials advise campers and other recreational visitors that toxins cannot be removed by boiling, filtering or treating water with camping-style filters.
• The Oregon Health Authority has updated the Health Advisory issued July 28 for Howard Bay (also known locally as Howards Bay or Howard’s Bay), located in the southwest corner of Upper Klamath Lake including Shoalwater Bay to the north and now all of Upper Klamath Lake. These areas of Upper Klamath Lake are located off Oregon Route 140, 15 miles west of Klamath Falls in Klamath County. Water monitoring has confirmed the presence of blue-green algae and the toxins they produce in Howard Bay. These toxin concentrations can be harmful to humans and animals. People should always avoid areas with visible scum that looks foamy, scummy, thick like paint, pea-green, blue green or brownish red. Swimming and high-speed water activities such as water skiing or power boating where ingestion and inhalation exposure can occur is discouraged. Swallowing or inhaling water droplets as a result of these water activities in areas where a bloom has been identified, or an advisory issued, can expose people to the toxins being produced. Although toxins are not absorbed through the skin, people who have skin sensitivities that come into contact with a bloom may experience a puffy, red rash at the affected area. Drinking water directly from Howard Bay and Shoalwater Bay at this time is especially dangerous. OHA Public Health Division officials advise campers and other recreational visitors that toxins cannot be removed by boiling, filtering or treating water with camping-style filters.
• A Health Advisory remains in effect for Agency Lake, located just north of Klamath Falls along U.S. Highway 97 in Klamath County. Water monitoring has confirmed the presence of blue-green algae and the toxins they produce in the lake. These toxin concentrations can be harmful to humans and animals. People should always avoid areas with visible scum that looks foamy, scummy, thick like paint, pea-green, blue green or brownish red. Swimming and high-speed water activities such as water skiing or power boating where ingestion and inhalation exposure can occur is discouraged. Swallowing or inhaling water droplets as a result of these water activities in areas where a bloom has been identified, or an advisory issued, can expose people to the toxins being produced. Although toxins are not absorbed through the skin, people who have skin sensitivities that come into contact with a bloom may experience a puffy, red rash at the affected area. Drinking water directly from Agency Lake at this time is especially dangerous. OHA Public Health Division officials advise campers and other recreational visitors that toxins cannot be removed by boiling, filtering or treating water with camping-style filters.
• A Health Advisory remains in effect for Willow Creek Reservoir, located just east of the town of Heppner in Morrow County. Water monitoring has confirmed the presence of blue-green algae and the toxins they produce in the reservoir. These toxin concentrations can be harmful to humans and animals. People should always avoid areas with visible scum that looks foamy, scummy, thick like paint, pea-green, blue green or brownish red. Swimming and high-speed water activities such as water skiing or power boating where ingestion and inhalation exposure can occur is discouraged. Swallowing or inhaling water droplets as a result of these water activities in areas where a bloom has been identified, or an advisory issued, can expose people to the toxins being produced. Although toxins are not absorbed through the skin, people who have skin sensitivities that come into contact with a bloom may experience a puffy, red rash at the affected area. Drinking water directly from Willow Creek Reservoir at this time is especially dangerous. OHA Public Health Division officials advise campers and other recreational visitors that toxins cannot be removed by boiling, filtering or treating water with camping-style filters.
• A Health Advisory remains in effect for Coffenbury Lake, located at Fort Stevens State Park about five miles northwest of US-101 ALT, Northwest Ridgefield Road near Warrenton in Clatsop County. Water monitoring has confirmed the presence of blue-green algae that can produce toxins in Coffenbury Lake. These blue-green algae levels are likely to be associated with dangerous cyanotoxin concentrations in the water that can be harmful to humans and animals.  People should always avoid areas with visible scum that looks foamy, scummy, thick like paint, pea-green, blue-green or brownish-red. Swimming and high-speed water activities such as water skiing or power boating where ingestion and inhalation exposure can occur are discouraged. Swallowing or inhaling water droplets as a result of these water activities in areas where a bloom has been identified or an advisory issued, can expose people to the toxins that can be produced. Although toxins are not absorbed through the skin, people with skin sensitivities who come into contact with a bloom may experience a puffy, red rash at the affected area. Drinking water directly from Coffenbury Lake at this time is especially dangerous. OHA Public Health Division officials advise campers and other recreational visitors that toxins cannot be removed by boiling, filtering or treating water with camping-style filters.
• A Permanent Health Advisory remains in effect for the South Umpqua River and Lawson Bar. Pools in the bedrock along the rivers edge are known to develop Blue-green Algae (cyanobacterial) blooms that can be harmful to pets and people if accidental ingestion occurs. Signs have been posted along several access areas along the river.

 

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Your College Football Forecast:

Saturday September 16th–

Ducks vs Wyoming, at War Memorial Stadium – Laramie, Wyoming– Kickoff: 4:00 PM PDT – Partly cloudy, a slight chance of showers, 62 degrees and cooling as the game progresses, wind SW 15 mph.

Beavers vs Washington State, at Martin Stadium – Pullman, Washington– Kickoff: 2:30 PM PDT- Mostly sunny, 62 degrees warming to 66 degrees, then slow cooling toward the end of the game, wind ESE 10 mph.

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Forecast for the Southern and lower Mid Willamette Valley including Eugene-Springfield and Albany-Corvallis:

• Mostly sunny this afternoon, mostly clear tonight,
• Mostly sunny and a bit warmer Friday, clear in the evening, partly cloudy at night,
• A mix of clouds and sun and a bit cooler Saturday, then mostly cloudy Saturday night.
• highs 78- 80 cooling to 77 Saturday lows 46-50.
• Mostly cloudy and a bit cooler Sunday with rain becoming likely (70%) in the afternoon and Sunday night,
• Cloudy with rain likely (70%) Monday AM, showers likely (70%) and a bit cooler in the afternoon and at night,
• Mostly cloudy with showers likely (70%) in the AM, a good (50%) chance of showers and a bit warmer Tuesday afternoon, mostly cloudy with a (40%) chance of showers at night,
• Then a mix of clouds and sun with a (30%) chance of showers Wednesday.
• highs 72-63 warming to 66 Wednesday lows 52-49. (seasonal averages high 78 low 47)

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Forecast for Roseburg:

• Sunny and a bit cooler this afternoon, clear tonight,
• Sunny and a bit warmer Friday, clear Friday night,
• Partly cloudy in the AM, mostly cloudy and a bit cooler  Saturday afternoon and Saturday night.
• highs 73-80 cooling to 73 Saturday lows 49-47 warming back to 49 Saturday night.
• Partly cloudy in the AM, mostly cloudy and a bit cooler with rain likely (70%) Sunday afternoon, evening rain with patchy smoke,  rain with patchy smoke late at night,
• Mostly cloudy with AM rain likely (70%), patchy smoke and a bit cooler with showers likely (60%) in the afternoon through Tuesday AM, a good (50%) chance of showers in the afternoon, a (40%) chance of showers at night,
• Then mostly cloudy with patchy smoke and a slight (20%) chance of showers Wednesday.
• highs 73-63 warming to 65 Tuesday and Wednesday lows 52-49. (seasonal averages high 79 low 52)

 

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Forecast for The South Oregon Coast Including Coos Bay and North Bend:

• Mostly sunny and a bit cooler this afternoon, partly cloudy in the evening at the shore and mostly cloudy late tonight while mostly clear inland tonight,
• AM clouds, sunny and a bit warmer Friday afternoon, mostly clear in the evening, partly cloudy late at night,
• Partly cloudy in the AM, mostly cloudy and a bit cooler Saturday afternoon and Saturday night.
• highs 63-65 cooling back to 63 Saturday lows 49-52.
• Mostly cloudy with rain likely (60%) and a bit warmer Sunday afternoon and Sunday night,
• Mostly cloudy with showers likely (70%) Monday through Tuesday AM, a bit cooler with a good (50%) chance of showers Tuesday afternoon, mostly cloudy with a (30%) chance of showers Tuesday night,
• Then mostly cloudy with a slight (20%) chance of showers and a bit warmer Wednesday.
• highs 64-60 warming back to 64Wednesday lows near 52. (seasonal averages high 65 low 50)

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Forecast for the Cascades in Lane County:

• Partly cloudy with areas of smoke and a bit cooler this afternoon, partly cloudy this evening,  clear with areas of smoke late tonight,
• Mostly sunny with areas of smoke and a bit warmer Friday, mostly clear with areas of smoke at night,
• A mix of clouds and sun and a bit warmer with areas of smoke Saturday, mostly cloudy with areas of evening smoke, then partly cloudy with areas of smoke late Saturday night.
• free air freezing level 10,000 ft. this afternoon, 10,000 ft. falling to 9,000 ft. late tonight, 9,000 ft. rising to 10,000 ft. Friday, 10,000 ft. rising to 11,000 ft. late Friday night, 10,000 ft. Saturday, then 11,000 ft. falling to 10,000 ft. Saturday night.
• highs 54-64 lows 36-42.
• Areas of AM smoke, a mix of clouds and sun and a bit cooler with rain Sunday afternoon and evening, rain and snow late Sunday night and Monday AM, a bit cooler with a rain and snow showers likely (70%) Monday afternoon and at night,
• Mostly cloudy with AM rain and snow showers likely (70%), a (40%) chance of rain and snow showers and a bit cooler Tuesday afternoon, a (40%) chance of showers Tuesday night,
• Then mostly cloudy with a (30%) chance of showers and a bit warmer Wednesday.
• free air freezing level 10,000 ft. Sunday AM, snow level above 8,000 ft. Sunday afternoon, 8,000 ft. falling to 6,000 ft. late Sunday night, 6,000 ft. falling to 5,500 ft. Monday, 5,500 ft. rising to 6,000 ft. late Monday night, 6,000 ft. rising to 6,500 ft. Tuesday afternoon, then 6,500 ft. Tuesday night and Wednesday.
• highs 62-48 warming to 50 Wednesday lows 42-36.

 

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**Because weather forecasting is a combination of science, intuition, and timing there can be no absolute guarantees that individual forecasts will be 100% accurate. Nature is in a constant state of flux and sudden unexpected weather events can happen.

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Get your local Eugene-Springfield and Lane County news on-line at eugenedailynews.com.

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