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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 high pressure ridge (Shaded “Arch” shape with blue arrows) will strengthen keeping us in sunshine and warm temperatures. A weak cold front will move through by Thursday with little or no effect dropping temperatures slightly.

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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 tonight and Sunday AM, sunny in the afternoon, clear in the evening, partly cloudy Sunday night,
• Partly cloudy Monday AM, sunny in the afternoon, mostly clear at night,
• Mostly sunny Tuesday, then mostly clear Tuesday night.
• lows 54-58 cooling to 54 Tuesday night highs 89-86.
• Mostly sunny Wednesday, Thursday, Friday, and Saturday, mostly clear each night.
• highs 83-80 warming to 86 Saturday lows near 53. (seasonal averages high 80 low 51)

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Forecast for the Umpqua Basin including Roseburg:

• Partly cloudy tonight,
• Sunny Sunday, clear in the evening, partly cloudy late at night,
• Mostly cloudy Monday AM, sunny in the afternoon, mostly clear in the evening, partly cloudy late at night,
• Mostly cloudy in the AM, sunny Tuesday, mostly clear Tuesday night.
• lows 58-63 cooling to 60 Tuesday night highs 92-89.
• Mostly sunny Wednesday through Saturday, mostly clear each night.
• highs 82-93 lows near 58. (seasonal averages high 82 low 55)

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

• Partly cloudy this evening, mostly cloudy tonight,
• Mostly cloudy Sunday AM, sunny in the afternoon, partly cloudy in the evening, mostly cloudy late Sunday night,
• Mostly cloudy in the AM, then partly cloudy Monday afternoon, mostly clear in the evening, mostly cloudy late at night,
• Mostly cloudy Tuesday AM, then partly cloudy Tuesday afternoon and at night.
• lows 57-60 cooling to 58 Tuesday night highs 56-60 cooling to 67 Monday.
• Partly cloudy Wednesday through Friday night,
• Mostly cloudy Saturday AM, then sunny in the afternoon.
• highs 65-70 lows near 56. (seasonal averages high 64 low 52).

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Forecast for the Cascades in Lane County:

• Mostly clear tonight,
• Mostly sunny Sunday, Monday, and Tuesday, then mostly clear each night.
• free air freezing level 15,000 ft. tonight and Sunday, 16,000 ft. Sunday night through Tuesday night.
• lows 48-52 cooling to 46 Tuesday night highs 78-80 cooling back to 78 Tuesday.
• 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, 16,000 ft. Friday, then 15,000 ft. Friday night and Saturday.
• highs 75-72 warming to 76 Saturday lows 45-50.

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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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