Check out my latest Eugene Daily News Weather Or Not Column Middle Schoolers Rule! Two Of The Best Hours I’ve Ever Spent.

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Here is my weekly weather quiz question. What is “air stagnation?” Please remember to post your answer as a comment by clicking on “no comments /comments” in the upper right hand portion of this page under the caption, then add your comment. The first person to post the correct answer will win a week of free personalized weather forecasts tailored to your needs. The answer has to be a comment to win. An email answer will not count. Good luck.

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ADVISORIES:

A DENSE FOG ADVISORY IS IN EFFECT UNTIL NOON TODAY FOR THE ENTIRE I-5 CORRIDOR FROM PORTLAND THROUGH EUGENE AND SPRINGFIELD.

A Blue-Green Algae warning continues for Tenmile Lakes in Coos County, Fern Ridge Reservoir, Lost Creek Lake,  and  at Devils Lake. Water monitoring has confirmed the presence of blue-green algae that can produce toxins, state public health officials said. The algae levels are likely associated with dangerous cyanotoxin concentrations in the water that can be harmful to humans and animals. Swallowing or inhaling water droplets, as well as skin contact with water, should be avoided according to the authorities.
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An upper level high pressure ridge (Shaded “Arch” shape) is strengthening along the coast keeping clear skies over Oregon cutting off the moisture feed and drying us out for the near future.

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Your Saturday College Football Forecasts:

The Ducks vs UCLA at Autzen Stadium: Kickoff 4:00 PM- Sunny, temperature near 64 cooling down to the 50s by the end of the game.

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The Beavers vs Stanford at Reser Stadium: Kickoff 7:30 PM- Clear with temperature near 58 cooling through the low 50s by the end of the game.

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

• Cloudy with areas of dense AM fog, sunny this afternoon, mostly clear with areas of fog late at night,
• Cloudy with patchy fog Friday AM, mostly sunny in the afternoon, clear in the evening, mostly cloudy with patchy fog late at night,
• Mostly cloudy with areas of fog Saturday AM, mostly sunny in the afternoon, partly cloudy with patchy fog late at night,
• highs 65-63 lows 42-40.
• A mix of clouds and sun with patchy AM fog, mostly sunny Sunday afternoon, partly cloudy with patchy fog at night,
• Patchy AM fog, mostly sunny Monday, Tuesday, and Wednesday with mostly clear skies at night.
• highs 62-55 warming to 58 Wednesday lows 38-32. (seasonal averages high 60 low 40)

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Forecast for the South Oregon Coast including Coos Bay and North Bend:

• Mostly cloudy with patchy lingering coastal fog, AM clouds and fog inland and sunny this afternoon, clear in the evening, cloudy with patchy fog late tonight,
• Partly cloudy with areas of fog Friday AM, sunny in the afternoon, clear in the evening, mostly cloudy with patchy fog late Friday night.
• AM clouds and fog, sunny Saturday afternoon, then mostly clear at night.
• highs 58-62 lows near 45.
• Mostly cloudy with patchy AM fog, partly cloudy Sunday afternoon and at night.
• Partly cloudy Monday, mostly clear at night,
• Then mostly sunny Tuesday and Wednesday, mostly clear Tuesday night.
• highs 62-59 lows 46-42. (seasonal averages high 60 low 45)

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Forecast for the Cascades of Lane County:

• Sunny today, clear tonight,
• Mostly sunny Friday and Saturday, mostly clear at night,
• free air freezing level 12,000 ft. today through Saturday night.
• highs 63-60 lows 36-40 cooling to 37 Saturday night.
• Partly cloudy Sunday, partly cloudy with a slight (20%) chance of  showers Sunday night,
• Mostly sunny Monday through Wednesday, mostly clear nights.
• free air freezing level 12,000 ft. Sunday, snow level above 8,000 ft. at night, free air freezing level 5,500 ft. Monday, 4,500 ft. Monday night, at the surface rising to 4,500 ft. Tuesday, 7,000 ft. Tuesday night, then 9,000 ft. Wednesday.
• highs 57-45 warming to near 52 Wednesday lows 33-24 warming to 27 Tuesday night.