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Check out my latest Eugene Daily News Weather Or Not Column To Smoke, Or Not To Smoke, That Is The Question.

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And don’t forget my latest feature story in the continuing series on service club organizations called “Assistance” Is Their First Name.

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Here is my new weekly weather quiz question. What is “knot?” 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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Upper level high pressure (shaded “Arch” shape with blue arrows) took over for the weekend returning the sunshine. Now an upper level low pressure trough ( shaded “U” shape with blue arrows) is sliding in. The chance of rain returns as another frontal system marched into Oregon.

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Air Quality Index:

Eugene-Springfield: The Air Quality Index is 21 in the Good category measuring Particulate Matter at Springfield City Hall. Data courtesy of Lane Regional Air Protection Agency (LRAPA)

Oakridge: The Air Quality Index is 38 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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Advisories:

• A HEALTH ADVISORY CONTINUES FOR THE PRESENCE OF BLUE-GREEN ALGAE IN WILLOW CREEK RESERVOIR IN MORROW COUNTY, WICKIUP RESERVOIR IN DESCHUTES COUNTY, 40 MILES SW OF BEND, FOR TENMILE LAKES IN COOS COUNTY, AND AT DEVILS LAKE IN LINCOLN COUNTY. THE TOXIC ALGAE BLOOM MEANS THAT PEOPLE SHOULD NOT DRINK OR HAVE DIRECT CONTACT WITH THE AFFECTED WATER AND THAT ALSO GOES FOR ANY PETS.

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

• Mostly cloudy with rain this AM changing to showers this afternoon (0.25 in. of rain possible), showers likely (60%) this evening, scattered showers likely (60%) tonight (0.10 in. of rain possible),
• Mostly cloudy with a slight (20%) chance of showers Tuesday AM, a mix of clouds and sun with a slight (20%) chance of showers in the afternoon and evening (under 0.10 in. of rain possible), rain (under 0.10 in. of rain possible) and breezy (Wind: S 15-25 mph late) Tuesday night,
• Then rain (0.50 in. of rain possible) and breezy Wednesday (Wind: S 15-25 mph), then rain Wednesday night.
• highs 67-64 lows 52-55.
• Mostly cloudy with rain Thursday, rain likely (70%) at night and Friday, rain likely (70%) at night,
• Then mostly cloudy with a good (50%) chance of showers Saturday and Sunday, cloudy with a (40%) chance of showers Saturday night.
• highs 63-66 lows 52-50. (seasonal averages high 62 low 41).

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Forecast for the Umpqua Basin including Roseburg:

• AM rain, showers this afternoon, showers this afternoon (0.20 in. of rain possible), evening showers with a slight (20%) chance of isolated thunderstorms, a good (50%) chance of showers late tonight (under 0.10 in. of rain possible),
• Mostly cloudy with a (40%) chance of showers Tuesday AM, a slight (20%) chance of afternoon rain (under 0.10 in. of rain possible), rain in the evening, rain likely (70%) late at night (under 0.10 in. of rain possible),
• Mostly cloudy with rain Wednesday (0.35 in. of rain possible) and Wednesday night.
• highs near 65 lows 50-57.
• Mostly cloudy with rain Thursday, rain likely (70%) Thursday night through Saturday, then mostly cloudy with a good (50%) chance of rain Saturday night and Sunday.
• highs 64-66 cooling to 64 Sunday lows 52-48. (seasonal averages high 64 low 44)

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

• Coastal AM showers while inland AM rain, showers with a slight (20%) chance of isolated thunderstorms this afternoon and evening (0.15 in. of rain possible), showers late tonight (under 0.10 in. of rain possible),
• Mostly cloudy with a (40%) chance of showers Tuesday AM, a slight (20%) of afternoon rain (under 0.10 in. of rain possible), evening rain likely (60%), showers late Tuesday night,
• Mostly cloudy with rain Wednesday (1.00 in. of rain possible) and Wednesday night.
• highs near 63 lows 54-57.
• Mostly cloudy with rain Thursday, rain likely (70%) Thursday night through Saturday, a good (50%) chance of rain Saturday night,
• Then mostly cloudy with rain likely (60%) Sunday.
• highs 60-63 lows 54-50. (seasonal averages high 60 low 46)

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Forecast for the Cascades in Lane County:

• Rain today (0.25 in. of rain possible), mostly cloudy with evening showers likely (70%), scattered showers and colder late tonight (0.10 in. of rain possible),
• Mostly cloudy with a slight (20%) chance of showers Tuesday AM, a mix of clouds and sun in the afternoon, becoming mostly cloudy with a slight (20%) chance of evening rain, a good (50%) chance of rain Tuesday night,
• Mostly cloudy with rain Wednesday and at night.
• snow level 8,000 ft. today, 6,000 ft. tonight, 5,500 ft. Tuesday, 7,000 ft. Tuesday night, then above 8,000 ft. Wednesday and Wednesday night.
• highs 49-52 lows 36-42.
• Mostly cloudy with rain Thursday, rain likely (70%) at night and Friday, a good (50%) chance of rain Friday night,
• A mix of clouds and sun with a good (50%) chance of showers Saturday, cloudy with a good (50%) chance of showers at night, then mostly cloudy with a good (50%) chance of rain and snow showers Sunday.
• snow level 8,000 ft. Thursday, 7,500 ft. Thursday night, 8,000 ft. Friday and Friday night,  7,000 ft. Saturday, 6,500 ft. Saturday night, then 5,500 ft. Sunday.
• highs 49-57 cooling to 52 Sunday lows 40-36.

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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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