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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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An upper level low pressure trough (Shaded “U” shape with blue arrows) is controlling our weather now. A frontal system will move through the Pacific Northwest spreading rain throughout. Another frontal system will help keep us wet through the Easter weekend. 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 16 in the Good category measuring Particulate Matter.

Oakridge: The Air Quality Index is 13 in the Good category measuring Particulate Matter.

Cottage Grove: The Air Quality Index is 15 in the Good category measuring Particulate Matter.

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:

• 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 and evening (0.25 in. of rain possible, more in storms, small hail possible), a good (50%) chance of showers late at night (0.10 in. of rain possible),
• Mostly cloudy with a good (50%) chance of AM showers, showers likely (60%) with a slight (20%) chance of thunderstorms Wednesday afternoon and evening (0.10 in. of rain possible), a slight (20%) chance of showers late Wednesday night (under 0.10 in. of rain possible),
• A mix of clouds and sun Thursday, then partly cloudy at night.
• lows 45-36 highs 56-60.
• A mix of clouds and sun with a slight (20%) chance of rain Friday, a  (40%) chance of showers Friday night,
• Mostly cloudy with a good (50%) chance of rain Saturday, a (40%) chance of showers Saturday night,
• Mostly cloudy with a good (50%) chance of showers Sunday, then a (40%) chance of showers Sunday night and Monday.
• highs 58-55 warming back to 58 Monday lows 40-38. (seasonal averages high 58 low 38)

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Eugene-Springfield Pollen Count:

Trees: Very High-  1187

Grass: Absent- 0

Reading as of: 3/28/15

Data courtesy of Oregon Allergy Associates.

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Forecast for the Umpqua Basin including Roseburg:

• 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, snow level 3,000 ft. rising to 3,500 ft), a good (50%) chance of showers late Tuesday night (under 0.10 in. of rain possible, snow level 3,500 ft. falling to 3,000 ft.),
• Mostly cloudy with a slight (20%) chance of AM showers, a good (50%) chance of showers and a slight (20%) chance of thunderstorms Wednesday afternoon (under 0.10 in. of rain possible, snow level 3,000 ft.), a (30%) chance of showers Wednesday night (under 0.10 in. of rain possible, snow level 3,500 ft. falling to 3,000 ft. late),
• Mostly cloudy with a slight (20%) chance of showers Thursday, then just partly cloudy Thursday night.
• lows 45-38 highs 55-58.
• Partly cloudy with a slight (20%) chance of rain Friday, then mostly cloudy with a (40%) chance of rain Friday night through Monday.
• highs 60-55 warming back to 60 Monday lows 42-38 warming back to 42 Sunday night. (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 coastal rain while a good (50%) chance of inland evening rain and 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 showers and a slight (20%) chance of afternoon inland thunderstorms (0.25 in. of rain possible, small hail possible), increasing coastal showers and a slight (20%) chance of isolated evening  thunderstorms while scattered inland showers and isolated thunderstorms in the evening (small hail possible), a good (50%) chance of showers late Tuesday night (0.10 in. of rain possible),
• Mostly cloudy with a (40%) chance of AM coastal showers and showers likely (60%) with a slight (20%) chance of thunderstorms in the afternoon while a slight (20%) chance of AM inland showers and a good (50%) chance of showers and a slight (20%) chance of thunderstorms inland Wednesday afternoon (under 0.10 in. of rain possible), mostly cloudy with a (30%) chance of showers Wednesday night (0.10 in. of rain possible),
• Mostly cloudy with a slight (20%) chance of showers Thursday, then just partly cloudy at night.
• lows 48-40 highs near 54.
• Mostly cloudy with a slight (20%) chance of rain Friday, a (30%) chance of rain Friday night,
• Then mostly cloudy with a good (50%) chance of rain Saturday through Monday.
• highs 54-52 warming to 55 Monday lows near 44. (seasonal averages high 54 low 42)

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Forecast for the Cascades in Lane County:

• More clouds this evening with rain developing late tonight (0.25 in. of rain possible),
• Rain and snow showers and cooler Tuesday (0.25 in. of rain possible, 2-5 in. of snow possible), rain and snow showers in the evening, a (40%) chance of rain and snow showers and colder late Tuesday night (0.10 in. of rain possible, 1-3 in. of snow possible),
• Mostly cloudy with a good (50%) chance of AM rain and snow showers, rain and snow showers likely (70%) Wednesday afternoon and evening, a good (50%) chance of rain and snow showers late at night,
• Mostly cloudy Thursday AM, partly cloudy in the afternoon and Thursday night
• snow level 8,o00 ft. falling to 6,500 ft. late tonight, 4,500 ft. falling to 3,500 ft. Tuesday,  3,500 ft. Tuesday night, 3,000 ft. Wednesday,  3,500 ft. Wednesday night, free air freezing level at the surface rising to 4,000 ft. Thursday, then 4,500 ft. Thursday night,
• lows 32-24 highs 38-43.
• Partly cloudy with a slight (20%) chance of rain and snow Friday, mostly cloudy with a (40%) chance of rain and snow showers Friday night,
• A mix of clouds and sun with a good (50%) chance of rain and snow showers Saturday, mostly cloudy with a good (50%) chance of rain and snow showers Saturday night,
• Mostly cloudy with a good (50%) chance of snow showers Sunday and Sunday night,
• Then mostly cloudy with a (40%) chance of snow showers Monday.
• snow level 3,000 ft. Friday, 4,500 ft. Friday night, 3,500 ft. Saturday and Saturday night, then 2,500 ft. Sunday through Monday.
• highs 45-36 warming to 42 Monday lows 27-25.

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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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