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.

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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 moves through the Pacific Northwest 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.

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Air Quality Index:

Eugene-Springfield: The Air Quality Index is 24 in the Good category measuring Ozone.

Oakridge: The Air Quality Index is 20 in the Good category measuring Particulate Matter.

Cottage Grove: The Air Quality Index is 23 in the Good category measuring Particulate Matter.

Data courtesy of Lane Regional Air Protection Agency (LRAPA)

 

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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 11 PM TONIGHT THROUGH WEDNESDAY AFTERNOON FOR THE EASTERN DOUGLAS COUNTY FOOTHILLS.
• A FLASH FLOOD WATCH IS IN EFFECT FROM 5 PM THIS EVENING THROUGH WEDNESDAY MORNING 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.

 

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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.

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

• Mostly cloudy with rain tonight (0.50 in. of rain possible),
• Mostly cloudy with showers and a slight (20%) chance of AM thunderstorms, showers and a bit cooler with a (30%) chance of thunderstorms Wednesday afternoon (0.50 in. of rain possible, more in storms), cloudy with a good (50%) chance of showers and thunderstorms in the evening, a good (50%) chance of showers late Wednesday night (under 0.10 in. of rain possible),
• Mostly cloudy with a good (50%) chance of AM showers, showers likely (70%) and a bit warmer with a slight (20%) chance of thunderstorms Thursday afternoon (0.25 in. of rain possible), a good (50%) chance of evening showers, a slight (20%) chance of showers late Thursday night (under 0.10 in. of rain possible),
• A slight (20%) chance of AM showers,a mix of clouds and sun and a bit warmer Friday afternoon, partly cloudy with patchy fog late Friday night.
• lows 52-44 highs 58-66.
• Mostly sunny with patchy fog Saturday AM, partly cloudy and a bit warmer in the afternoon, partly cloudy with patchy fog late Saturday night and Sunday AM, mostly sunny Sunday afternoon, mostly clear at night,
• Then mostly sunny and a bit warmer Monday and Tuesday, mostly clear Monday night,
• highs 72-76 lows 45-49. (seasonal averages high 76 low 46)

 

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Forecast for Roseburg:

• Mostly cloudy with rain tonight (0.50 in. of rain possible),
• AM showers, showers and a bit cooler with a slight (20%) chance of thunderstorms Wednesday afternoon (0.50 in. of rain possible) and evening, showers likely (70%) late at night,
• Cloudy with a (40%) chance of AM showers, showers likely (70%) and a bit warmer Thursday afternoon (0.25 in. of rain possible), mostly cloudy with with a (30%) chance of showers Thursday night (under 0.10 in. of rain possible),
• Mostly cloudy with a slight (20%) chance of showers Friday AM, sunny and a bit warmer Friday afternoon, then mostly clear at night.
• lows 52-46 highs 62-72.
• Mostly sunny and a bit warmer Saturday afternoon, clear Saturday night,
• Mostly sunny and a bit warmer Sunday and Monday, mostly clear at night,
• Then sunny Tuesday.
• highs 75-82 lows near 50. (seasonal averages high 78 low 51)

 

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

• Mostly cloudy with rain (0.50 in. of rain possible) tonight,
• Mostly cloudy with AM showers, showers with a slight (20%) chance of thunderstorms and a bit cooler Wednesday afternoon (0.50 in. of rain possible) and evening, coastal showers likely (70%) at night while a good (50%) chance of inland showers late Wednesday night (0.25 in. of rain possible),
• Mostly cloudy with a good (50%) chance of showers of coastal showers and a bit warmer Thursday while  a (40%) chance of inland AM showers (0.25 in. of rain possible), mostly cloudy with a (30%) chance of showers Thursday night (under 0.10 in. of rain possible),
• A slight (20%) chance of AM showers Friday, sunny and a bit warmer in the afternoon, mostly clear Friday night.
• lows 53-48 highs 59-64.
• Mostly sunny and a bit warmer Saturday and Sunday, mostly clear at night,
• Mostly sunny and a bit warmer Monday, mostly clear at night,
• Then sunny and a bit cooler Tuesday.
• highs 65-69 cooling to 67 Tuesday lows 50-53. (seasonal averages high 65 low 50)

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Forecast for the Cascades in Lane County:

• Mostly cloudy with rain  tonight (1.00 in. of rain possible),
• Mostly cloudy with AM showers, showers and a bit cooler Wednesday with a (40%) chance of thunderstorms in the afternoon (0.75 in. of rain possible, 1-3 in. of snow possible), rain and snow showers likely (70%) with a (%) chance of of evening thunderstorms, a (%) chance of rain and snow showers late Wednesday night,
• Mostly cloudy with a good (50%) of AM rain and snow showers, rain and snow showers likely (70%) and a bit warmer Thursday with a slight (20%) chance of afternoon thunderstorms, a good (50%) chance of evening showers, then a slight (20%) chance of rain and snow showers late at night,
• A slight (20%) chance of AM rain and snow showers, a bit warmer Friday with a slight (20%) chance of showers in the afternoon, a slight (20%) chance of evening shower, then just partly cloudy late Friday night.
• snow level 6,500 ft. rising to 7,500 ft. late tonight, 6,500 ft. falling to 5,500 ft. Wednesday afternoon, 5,000 ft. Wednesday night and Thursday, 6,000 ft. Thursday night, 5,500 ft. Friday, then 7,000 ft. Friday night.
• lows 35-32 highs 40-48.
• Partly cloudy and a bit warmer Saturday and  Saturday night,
• Partly cloudy Sunday AM, mostly sunny and a bit warmer in the afternoon and Monday, mostly clear both nights,
• Then mostly sunny and a bit warmer Tuesday.
• free air freezing level 8,000 ft. rising to 9,000 ft. Saturday, 9,000 ft. rising to 10000 ft. Saturday night, 10,000 ft. rising to 11,000 ft. Sunday, 11,000 ft. Sunday night, 11,000 ft. rising to 13,000 ft. Monday, 13,000 ft. rising to 14,000 ft. Monday nighty, then 14,000 ft. Tuesday.
• highs 55-62 lows 36-40.

 

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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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