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Check out my latest Eugene Daily News Weather Or Not Column It’s 363 Miles Long, But What Is It?

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And don’t forget my latest feature story in the continuing series on service club organizations called This Moose Isn’t Named Bullwinkle.

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And my feature article about Contractors Electric called Is The Ground Wire The White One Or The Black One?

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Here is my new weekly weather quiz question. What is “Zero Datum?” 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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High pressure hung on for more sunshine Sunday and today, but an upper level low pressure trough (Shaded “U” shape with blue arrows) will take over. A frontal system will approach the Oregon coast between late today and tonight and bring back the showers. Now Willamette Pass, Hoodoo and Mt. Ashland have officially announced that this ski season is over.

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Air Quality Index:

Eugene-Springfield: The Air Quality Index is 19 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 31 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: None At This Time.

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

• Partly cloudy today, becoming mostly cloudy with a (40%) chance of rain this evening, rain late tonight (0.25 in. of rain possible),
• Mostly cloudy with showers likely (70%) and cooler Tuesday with a slight (20%) chance of thunderstorms in the afternoon (0.25 in. of rain possible),  a good (50%) chance of showers late at night (0.15 in. of rain possible),
• Mostly cloudy with showers likely (60%) Wednesday with a slight (20%) chance of thunderstorms in the afternoon, then mostly cloudy with a good (50%) chance of showers Wednesday night.
• highs 67-56 lows 45-37.
• A mix of clouds and sun with a slight (20%) chance of showers Thursday, partly cloudy at night,
• More clouds to mostly cloudy with a slight (20%) chance of rain Friday, mostly cloudy with a good (50%) chance of showers Friday night,
• Rain likely (70%) Saturday, then mostly cloudy with a good (50%) chance of showers Saturday night and Sunday.
• highs near 58 lows 34-40. (seasonal averages high 58 low 38)

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Eugene-Springfield Pollen Count:

Trees: Very High-  756

Grass: Absent- 0

Reading as of: 3/27/15

Data courtesy of Oregon Allergy Associates.

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Forecast for the Umpqua Basin including Roseburg:

• Partly cloudy today with patchy AM fog, mostly cloudy with a good (50%) chance of evening rain, rain late tonight (0.20 in. of rain possible),
• Mostly cloudy with showers Tuesday AM, increasing showers with a slight (20%) chance of thunderstorms in the afternoon and evening (0.20 in. of rain possible, small hail possible), a good (50%) chance of showers late Tuesday night (under 0.10 in. of rain possible, snow level 3,000 ft.),
• Mostly cloudy with a good (50%) chance of AM showers Wednesday, a good (50%) chance of showers and a slight (20%) chance of thunderstorms in the afternoon, a (30%) chance of showers Wednesday night.
• highs 70-55 lows 46-38.
• Mostly cloudy with a slight (20%) chance of showers Thursday, just partly cloudy Thursday night,
• Partly cloudy with a slight (20%) chance of rain Friday, mostly cloudy with a (30%) chance of rain at night,
• Rain likely (60%) Saturday and Sunday, mostly cloudy with a (40%) chance of rain Saturday night.
• highs 58-60 cooling to 55 Sunday lows 37-42 cooling to 38 Saturday night. (seasonal averages high 59 low 40)

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

• Mostly cloudy with patchy fog this AM, partly cloudy this afternoon, evening coastal rain likely (70%) while a good (50%) chance of inland evening rain, rain late tonight (0.30 in. of rain possible),
•  Mostly cloudy with coastal showers and a slight (20%) chance of AM thunderstorms Tuesday while inland AM showers and increasing (0.25 in. of rain possible), showers and a slight (20%) chance of afternoon inland thunderstorms, increasing coastal showers and a slight (20%) chance of isolated evening  thunderstorms while scattered inland showers and isolated thunderstorms in the evening, a good (50%) chance of showers late Tuesday night (0.10 in. of rain possible),
• Mostly cloudy with a (40%) chance of AM showers, a good (50%) chance of showers and a slight (20%) chance of thunderstorms Wednesday afternoon, then mostly cloudy with a (30%) chance of showers Wednesday night.
• highs 60-53 lows 47-40.
• Mostly cloudy with a slight (20%) chance of showers Thursday, just partly cloudy at night,
• Partly cloudy with a slight (20%) chance of rain Friday, mostly cloudy with a (30%) chance of rain Friday night,
• Rain likely (60%) Saturday and Sunday, mostly cloudy with a good (50%) chance of rain Saturday night,
• Then rain likely (60%) Sunday.
• highs near 55 lows 42-45. (seasonal averages high 54 low 42)

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Forecast for the Cascades in Lane County:

• Mostly sunny this AM, partly cloudy this afternoon, mostly cloudy with a chance of evening rain, rain late tonight (0.25 in. of rain possible),
• Rain and snow showers and cooler Tuesday, rain and snow showers likely (70%) and colder Tuesday night,
• Mostly cloudy with rain and snow showers likely (60%) Wednesday and at night.
• free air freezing level 9,00 ft. today, snow level 6,o00 ft. tonight, 4,500 ft. Tuesday,  3,500 ft. Tuesday night, 2,500 ft. Wednesday, then 3,000 ft. Wednesday night.
• highs 59-39 lows 32-24.
• Mostly cloudy with a slight (20%) chance of snow showers Thursday, just mostly cloudy at night,
• Partly cloudy Friday, partly cloudy with a (40%) chance of rain and snow showers Friday night,
• Mostly cloudy with rain and snow likely (60%) Saturday, then mostly cloudy with a good (50%) chance of rain and snow showers Saturday night and Sunday.
• snow level 2,500 ft. Thursday, free air freezing level 5,000 ft. Thursday night and Friday, snow level 5,000 ft. Friday night, 4,000 ft. Saturday, then 3,000 ft Saturday night and Sunday.
• highs 43-46 cooling back to 43 Sunday lows 25-28 cooling to 24 Sunday.

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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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