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Check out my latest Eugene Daily News Weather Or Not Column Oregon Was The First State To Make It A Holiday.

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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  “popcorn convection?” 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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A frontal system moves into Oregon with cooler air behind it. An upper level low (Shaded “U” shape with blue arrows) slid down ahead of an upper level high pressure ridge (Shaded “Arch” shape with blue arrows) and it give us another cooler day. It will be sunny and increasingly warmer, actually hot for two days as the ridge of high pressure takes over. As the winds strengthen from the east due to the high we will see more smoke from the wildfire near Oakridge penetrate into the valley areas later this week. A cold front will move onto Oregon Sunday cleaning at least most of the smoke from the valley.

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Advisories:

• A RED FLAG WARNING IS IN EFFECT FOR WIND AND LOW RELATIVE HUMIDITY IN ADDITION TO CRITICALLY DRY AND AND UNSTABLE CONDITIONS FROM NOON THURSDAY UNTIL 11 PM SATURDAY FOR ALL OF WESTERN OREGON FROM THE COAST TO THE WEST SLOPES OF THE NORTHERN AND CENTRAL CASCADES.
• A FIRE WEATHER WATCH IS IN EFFECT FROM FRIDAY AFTERNOON THROUGH THROUGH FRIDAY EVENING FOR WIND AND LOW RELATIVE HUMIDITY FOR THE EAST SLOPES OF THE CENTRAL OREGON CASCADES, THE DESCHUTES NATIONAL FOREST -MINUS SISTERS RANGER DISTRICT, AND THE EAST SLOPES OF THE NORTHERN OREGON CASCADES.
• 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 37 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 35 in the Good 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:

• Clear tonight,
• Sunny and warmer with areas of smoke Thursday, clear with patchy smoke Thursday night,
• Sunny and hot with patchy smoke Friday and Saturday, clear with patchy smoke Friday night, patchy smoke in the evening, mostly clear Saturday night.
• lows 44-55 cooling to 48 Saturday night highs 87-95.
• Mostly sunny Sunday, partly cloudy Sunday night,
• Becoming mostly cloudy with a slight (20%) chance of rain Monday afternoon through Tuesday, then just partly cloudy Tuesday night, partly cloudy and warmer Wednesday.
• highs 87-95 Wednesday lows 48-55 cooling to 52. (seasonal averages high 80 low 49)

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Forecast for the Umpqua Basin including Roseburg:

• Clear tonight,
• Sunny and warmer Thursday and Friday, clear Thursday night and Friday night,
• Mostly sunny Saturday, then mostly clear at night.
• lows 50-56 highs 92-97.
• Sunny Sunday, then partly cloudy Sunday night through Wednesday.
• highs 90-83 warming to 87 Wednesday lows 54-56. (seasonal averages high 82 low 53)

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

• Clear tonight,
• Sunny Thursday, clear Thursday night,
• Sunny with inland haze Friday afternoon, clear with inland haze at night,
• Sunny Saturday, then partly cloudy Saturday night.
• lows 50-54 highs 66-74 cooling back to 66 Saturday.
• Partly cloudy Sunday, mostly cloudy Sunday night through Tuesday then just partly cloudy Tuesday night and Wednesday.
• highs 69-65 lows near 55. (seasonal averages high 66 low 52)

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Forecast for the Cascades in Lane County:

• Clear tonight,
• Sunny with areas of smoke Thursday, clear with areas of smoke Thursday night,
• Sunny with patchy smoke Friday, mostly clear with patchy smoke at night,
• Mostly sunny with patchy smoke Saturday, patchy smoke in the evening, then mostly clear late Saturday night,
• free air freezing level 11,000 ft. tonight, 12,000 ft. Thursday, 13,000 ft. Thursday night and Friday, then 14,000 ft. Friday night through Saturday night.
• lows 37-46 highs 72-80.
• Mostly sunny Sunday, mostly clear at night,
• Mostly cloudy with a slight (20%) chance of rain Monday through Tuesday AM, mostly cloudy in the afternoon, then partly cloudy Tuesday night and Wednesday.
• free air freezing level 13,000 ft. Sunday and Sunday night, snow level above 8,000 ft. Monday through Tuesday, free air freezing level 14,000 ft. Tuesday night, then 15,000 ft. Wednesday.
• highs 73-66 warming to 72 Wednesday lows near 42.

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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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