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Check out my latest Eugene Daily News Weather Or Not Column A Big Badda-Boom!

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And don’t forget my latest feature story in the continuing series on service club organizations called Who Are The Soroptimists And What Are They Doing?

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No winner this week. Here is my weekly weather quiz question for the last time. What is “radiational cooling?” Here is the correct answer. Radiational Cooling is the cooling of the Earth’s surface. At night, the Earth suffers a net heat loss to space due to terrestrial cooling. This is more pronounced when you have a clear sky. I’ll have another weekly weather 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 low (Shaded “U” shape with blue arrows) will continue the onshore airflow which will keep some clouds around and the temperatures fairly stable. This weather should hold for the whole long holiday weekend too getting just a bit warmer.

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Advisories: None at this time.

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Air Quality Index:

Eugene-Springfield: The Air Quality Index is 32 in the Good category measuring Ozone at Delight Valley School, Saginaw. Data courtesy of Lane Regional Air Protection Agency (LRAPA)

Oakridge: The Air Quality Index is 22 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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Eugene-Springfield Pollen Count:

Grass……….High (47)

Trees……….Low (19)

Last Counted: 7/3/14

Data Courtesy of Oregon Allergy Associates.

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

• Partly cloudy today through Monday AM, mostly sunny in the afternoon, mostly clear Monday night.
• highs 85-88 lows 55-58.
• Mostly sunny Tuesday, Wednesday, Thursday, and Friday, mostly clear each night.
• highs 88-78 lows 55-52. (seasonal averages high 80 low 51)

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Forecast for the Umpqua Basin including Roseburg:

• Partly cloudy this AM, sunny this afternoon, mostly clear tonight,
• Sunny Sunday, mostly clear at night,
• Partly cloudy Monday AM, sunny in the afternoon, mostly clear at night.
• highs 90-93 lows 58-63.
• Mostly sunny Tuesday, mostly clear at night,
• Mostly sunny Wednesday and Thursday, mostly clear each night.
• highs 89-85 lows 55-62. (seasonal averages high 82 low 55)

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

• Mostly cloudy this AM, mostly sunny this afternoon, mostly clear tonight,
• Partly cloudy Sunday AM, sunny in the afternoon, partly cloudy in the evening, then mostly cloudy late Sunday night,
• Mostly cloudy in the morning, then partly cloudy Monday afternoon.
• highs 68-70 cooling to 67 Monday lows 57-60.
• Partly cloudy Tuesday through Friday.
• highs 66-62 warming to 65 Friday lows 57-55. (seasonal averages high 64 low 52).

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Forecast for the Cascades in Lane County:

• Partly cloudy today and tonight,
• Mostly sunny Sunday and Monday, then mostly clear each night.
• free air freezing level 15,000 ft. today through Sunday, then 16,000 ft. Sunday night through Monday night.
• highs 76-80 lows 48-52.
• Mostly sunny Tuesday through Friday, again with mostly clear nights.
• free air freezing level 16,000 ft. Monday through Thursday, 15,000 ft. Thursday night, then 16,000 ft. throughThursday night.
• highs 82-70 lows 49-52 cooling to 46 Thursday night.

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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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