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 from the Gulf of Alaska behind the frontal system that moved through Oregon Wednesday. The graphics for days 1-3 show the frontal system moving away from us. The graphics for days 3-7 show a complex frontal system moving southeastward out of the Gulf of Alaska next Wednesday.

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

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Air Quality Index:

Eugene-Springfield: The Air Quality Index is 28 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 24 in the Good category measuring Particulate Matter.

Data courtesy of Lane Regional Air Protection Agency (LRAPA)

 

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Advisories:

• A FREEZE WARNING IS IN EFFECT FROM 2 AM UNTIL 8 AM TODAY FOR NORTHERN AND EASTERN KLAMATH COUNTY, AND WESTERN, CENTRAL, AND EASTERN LAKE COUNTY.
• A FREEZE WARNING IS IN EFFECT FROM 2 AM UNTIL 9 AM FRIDAY FOR NORTHERN AND EASTERN KLAMATH COUNTY, AND WESTERN, CENTRAL, AND EASTERN LAKE COUNTY.
• A FREEZE WARNING IS IN EFFECT FROM 2 AM UNTIL 9 AM FRIDAY FOR NORTHERN AND EASTERN KLAMATH COUNTY, AND WESTERN, CENTRAL, AND EASTERN LAKE COUNTY.
• A FROST ADVISORY IS IN EFFECT 2 AM UNTIL 9 AM FRIDAY.
• A Health Advisory has been issued for the Link and Klamath rivers to Keno Dam. Water monitoring has confirmed the presence of blue-green algae and the toxins they produce. 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 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:

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 patchy AM fog and a good (50%) chance of showers this afternoon (under 0.10 in. of rain possible), a (30%) chance of evening showers (under 0.10 in. of rain possible), mostly cloudy with areas of fog late tonight and Friday AM, a mix of clouds and sun and a bit warmer in the afternoon, partly cloudy with patchy fog Friday night,
• Patchy AM fog, mostly sunny and a bit warmer Saturday, then party cloudy with patchy fog at night.
• highs 63-69 lows 46-43 warming to 45 Saturday night.
• Mostly sunny and a bit warmer Sunday, Monday, and Tuesday, mostly clear each night,
• Then mostly sunny Wednesday.
• highs 72-80 lows 45-52. (seasonal averages high 76 low 46)

 

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Forecast for Roseburg:

• Cloudy with a (30%) chance of showers today (0.10 in. of rain possible), mostly cloudy with with a (30%) chance of evening showers, just mostly cloudy late tonight (under 0.10 in. of rain possible),
• Mostly cloudy with a slight (20%) chance of showers Friday AM, partly cloudy and a bit warmer Friday afternoon, mostly clear at night,
• Mostly sunny and a bit warmer Saturday, then mostly clear Saturday night.
• highs 62-75 lows 47-49.
• Mostly sunny and a bit warmer Sunday and Monday, mostly clear at night,
• Sunny and a bit warmer Tuesday and Wednesday, mostly clear Tuesday night.
• highs 79-82 cooing to 80 Wednesday lows 50-55. (seasonal averages high 77 low 50)

 

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

• Mostly cloudy with a (40%) chance of showers and a bit warmer today (0.25 in. of rain possible),  a (30%) chance of evening showers (under 0.10 in. of rain possible), just mostly cloudy late tonight,
• Mostly cloudy with a slight (20%) chance of showers Friday AM, and a bit warmer in the afternoon at the shore while partly cloudy and a bit warmer inland in the afternoon, mostly clear Friday night,
• Mostly sunny and a bit warmer Saturday, then mostly clear at night.
• highs 62-65 lows 50-48 warming back to 50 Saturday night.
• Mostly sunny and a bit warmer Sunday and  Monday,
• Mostly sunny and a bit cooler Tuesday and Wednesday, mostly clear Tuesday night,
• highs 66-68 lows near 53. (seasonal averages high 65 low 49)

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Forecast for the Cascades in Lane County:

• Mostly cloudy with a good (50%) of rain and snow showers and a bit warmer today (under 0.10 in. of rain possible), a (40%) chance of showers late tonight,
• Mostly cloudy with a slight (20%) chance of showers and a bit warmer Friday, partly cloudy at night,
• Mostly sunny and a bit warmer Saturday, then partly cloudy Saturday night.
• snow level 5,000 ft. today, 6,000 ft. tonight, 5,500 ft. Friday, free air freezing level 8,000 ft. Friday night and Saturday, then 9,000 ft. Saturday night.
• highs 44-56 lows 30-35.
• Mostly sunny and a bit warmer Sunday, partly cloudy at night,
• Then mostly sunny and a bit warmer Monday, Tuesday, and Wednesday, mostly clear at night,
•  free air freezing level 11,000 ft. Sunday through Monday, 13,000 ft. Monday night, then 14,000 ft. Tuesday through Wednesday.
• highs 58-70 lows 38-44.

 

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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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