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Check out my latest Eugene Daily News Weather Or Not Column It Takes More Than Just Flipping A Coin.

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And don’t forget my latest feature story in the continuing series on service club organizations called “Buffalo Isn’t Only Known For Its Wings.”

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Here is my new weekly weather quiz question. What is “radiational cooling?” 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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An upper level trough of low pressure (Shaded “U” shape with blue arrows) will  swing to the south and east at us increasing the onshore airflow. That will continue the cooling trend and hopefully scour out the smoke from the wildfires that surround us. As the winds shifted more from the Southwest smoke from the wildfire west of Cottage Grove moved in particularly in the South Hills of Eugene. The increased onshore airflow could mix the air enough to cut back the smokey haze. The Full Harvest Moon takes place at 6:38 PM this evening. It’s also the third super moon. Won’t be another one for quite a while.

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Advisories:

• A RED FLAG WARNING IS IN EFFECT UNTIL 11  PM TONIGHT FOR WIND AND LOW RELATIVE HUMIDITY FOR THE LOWER COLUMBIA BASIN OF OREGON AND THE CENTRAL MOUNTAINS OF OREGON.
• A HEALTH ADVISORY CONTINUES FOR THE PRESENCE OF BLUE-GREEN ALGAE FOR WALTERVILLE POND IN LANE COUNTY AND AT DEVILS LAKE IN LINCOLN COUNTY. THE TOXIC ALGAE BLOOM MEANS THAT PEOPLE SHOULD NOT HAVE DIRECT CONTACT WITH THE AFFECTED WATER AND THAT ALSO GOES FOR ANY PETS.

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Air Quality Index:

Eugene-Springfield: The Air Quality Index is 47 in the Good category measuring Particulate Matter at HWY 99, Eugene. Data courtesy of Lane Regional Air Protection Agency (LRAPA)

Oakridge: The Air Quality Index is 83 in the Moderate category measuring Particulate Matter at Willamette Activity Center, Oakridge. Data courtesy of Lane Regional Air Protection Agency (LRAPA)

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

• Partly cloudy this evening, mostly cloudy late tonight and Tuesday AM, partly cloudy in the afternoon, mostly clear Tuesday night,
• Mostly sunny Wednesday, clear at night,
• Sunny Thursday, then clear at night.
• lows 52-46 highs 76-85.
• Sunny Friday, Saturday, and Sunday, clear each night,
• Then mostly sunny Monday.
• highs 88-86 lows 50-54. (seasonal averages high 79 low 48)

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Forecast for the Umpqua Basin including Roseburg:

• Partly cloudy this evening, mostly cloudy with patchy drizzle late tonight and Tuesday AM, sunny in the afternoon, mostly clear Tuesday night,
• Sunny Wednesday and Thursday, clear at night.
• lows 55-50 warming back to 52 Wednesday night highs 88-78 warming to 86 Wednesday .
• Sunny Friday, Saturday, Sunday, and Monday, clear each night.
• highs 92-90 lows near 55. (seasonal averages high 81 low 53)

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

• Partly cloudy this evening, mostly cloudy with patchy drizzle late tonight and Tuesday AM, partly cloudy in the afternoon and Tuesday night,
• Partly cloudy in the AM, sunny Wednesday afternoon, clear at night,
• Mostly sunny Thursday, then mostly clear at night.
• lows 57-53 highs 64-70.
• Mostly sunny, Friday, Saturday, Sunday, and Monday, mostly clear each night.
• highs 66-64 lows near 54. (seasonal averages high 65 low 51)

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Forecast for the Cascades in Lane County:

• Partly cloudy this evening, mostly cloudy late tonight,
• Mostly cloudy with a slight (20%) chance of drizzle Tuesday AM, party cloudy in the afternoon, mostly clear Tuesday night,
• Mostly sunny Wednesday, clear at night,
• Sunny Thursday, then clear Thursday night.
• free air freezing level 13,000 ft. tonight, 14,000 ft. Tuesday and Tuesday night, then 15,000 ft. Wednesday through Thursday, then 14,000 ft. Thursday night.
• lows near 43-48 highs 65-70.
• Sunny  Friday, Saturday, Sunday, and Monday, clear each night.
• free air freezing level 15,000 ft. Friday and Friday night, then 14,000 ft. Saturday through Monday.
• highs 78-72 lows 47-50.

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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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