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Check out my latest Eugene Daily News Weather Or Not Column Can Satellites Really Find Contaminated Water?

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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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No winner this week. Here is my weekly weather quiz question for the last time. What is a “Geosynchronous Satellite?” Here is the correct answer. Geosynchronous is the term applied to any equatorial satellite with an orbital velocity equal to the rotational velocity of the earth. The net effect is that the satellite is virtually motionless with respect to an observer on the ground. I’ll have a new weather quiz question for you starting Monday. 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 ridge of high pressure (Shaded “Arch” shape with blue arrows)  is strengthening and increasing the sunshine and dry weather. Expect temperatures rising from the low 70s to near 80 which puts us 10 degrees or more above normal.  However, next week a cold front will approach the coast Tuesday and bring back the chance of rain.

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Air Quality Index:

Eugene-Springfield: The Air Quality Index is 38 in the Good category measuring Particulate Matter.

Oakridge: The Air Quality Index is 73 in the Moderate category measuring Particulate Matter.

Cottage Grove: The Air Quality Index is 53 in the Moderate 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:

• Clear tonight,
• Sunny Sunday and Monday, clear Sunday night, mostly cloudy Monday night,
• Cloudy with a (30%) chance of AM drizzle, a mix of clouds and sun and cooler with a slight (20%) chance of showers Tuesday afternoon, mostly cloudy with a slight (20%) chance of showers Tuesday night.
• lows 38-45 highs 78-80 cooling to 65 Tuesday.
• Cloudy with a slight (20%) chance of showers Wednesday, mostly cloudy with a slight (20%) chance of showers at night,
• Mostly cloudy with a (30%) chance of showers Thursday, a (30% chance of showers at night,
• A mix of clouds and sun with a (30%) chance of showers Friday, mostly cloudy with a (30%) chance of showers Friday night,
• Then mostly cloudy with a (40%) chance of showers Saturday.
• highs 63-57 warming to 60 Saturday lows 39-42. (seasonal averages high 61 low 40)
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Eugene-Springfield Pollen Count:

Trees: High- 171

Grass: High- 0

Reading as of: 4/14/15

Data courtesy of Oregon Allergy Associates

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Forecast for the Umpqua Basin including Roseburg:

• Clear tonight,
• Sunny Sunday and Monday, clear Sunday night and Monday evening, becoming mostly cloudy late Monday night,
• Mostly cloudy and cooler with a slight (20%) chance of showers Tuesday afternoon, cloudy with a slight (20%) chance of evening thunderstorms, then a slight (20%) chance of showers late Tuesday night.
• lows 45-48 highs 83-68.
• Cloudy with a slight (20%) chance of showers Wednesday, partly cloudy with a slight (20%) chance of showers at night,
• Mostly cloudy with a slight (20%) chance of showers Thursday, partly cloudy with a (30%) chance of showers Thursday night,
• Mostly cloudy with a (30%) chance of showers Friday, partly cloudy with a (30%) chance of showers at night,
• Then mostly cloudy with a (30%) chance of showers Saturday.
• highs 62-58 warming to 64 Saturday lows 40-42. (seasonal averages high 63 low 42)

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

• Clear tonight,
• Sunny Sunday and Monday, clear Sunday night, partly cloudy Monday evening, increasing clouds to mostly cloudy at night,
• Mostly cloudy and cooler Tuesday, cloudy with a slight (20%) chance of showers Tuesday night.
• lows near 48 highs 66-56.
• Cloudy with a slight (20%) chance of showers Wednesday, mostly cloudy with a slight (20%) chance of showers at night and Thursday, partly cloudy with a (30%) chance of showers Thursday night,
• Mostly cloudy with a (30%) chance of showers Friday and Saturday, partly cloudy with a (30%) chance of showers Friday night.
• highs 56-60 lows near 44. (seasonal averages high 55 low 43)

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Forecast for the Cascades in Lane County:

• Clear tonight,
• Sunny and warmer Sunday and Monday, clear Sunday night, partly cloudy Monday night,
• Partly cloudy and cooler with a (40%) chance of areas of AM drizzle, mostly cloudy with a (30%) chance of showers and a slight (20%) chance of thunderstorms Tuesday afternoon, then a slight (20%) chance of showers late Tuesday night.
• free air freezing level 11,000 ft. tonight through Monday night, then snow level 8,000 ft. Tuesday and Tuesday night.
• lows 32-38 cooling back to 32 Tuesday night highs 68-70 cooling to 58 Tuesday.
• Cloudy with a (40%) chance of showers Wednesday, a (30%) chance of showers Wednesday night through Thursday, Mostly cloudy with a (30%) chance of showers at night,
• A mix of clouds and sun with a (40%) chance of rain and snow showers Friday, then mostly cloudy with a (40%) chance of rain and snow showers at night and Saturday.
• snow level 6,500 ft. Wednesday, 6,000 ft. Wednesday night through Thursday night, 4,500 ft. Friday, then 5,000 ft. Friday night and Saturday.
• highs 52-42 warming to 47 Saturday lows near 30.
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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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