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Check out my latest Eugene Daily News Weather Or Not Column We’re Having A Heatwave. What To Do?

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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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Here is my new weekly weather quiz question. What is a “Derecho?” (Hint: One has been in the news lately.)  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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A high pressure ridge (“Arch” shape in blue arrows offshore) is slowly weakening and an upper level low will slide over it toward the weekend and a frontal system will push through between Saturday night and Sunday morning returning the slight chance of showers. The temperatures will fluctuate a bit lower, a bit higher, a bit lower, then back up a bit, but will stay pretty stable through the weekend.

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Advisories:

• A RED FLAG WARNING IS IN EFFECT UNTIL 11 PM TONIGHT FOR WIND AND LOW RELATIVE HUMIDITY FOR THE EAST SLOPES OF THE NORTHERN OREGON CASCADES, THE EAST SLOPES OF THE CENTRAL OREGON CASCADES, THE CENTRAL MOUNTAINS OF OREGON, AND THE LOWER COLUMBIA BASIN.

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Air Quality Index:

Eugene-Springfield: The Air Quality Index is 39 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 18 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 (34)

Trees……….Low (12)

Last Counted: 7/11/14

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:

• Mostly sunny today, mostly clear tonight,
• Partly cloudy Saturday, partly cloudy with a slight (20%) chance of showers in the evening, mostly cloudy late at night,
• A mix of clouds and sun with a slight (20%) chance of showers Sunday, partly cloudy with a slight (20%) chance of showers in the evening, then mostly cloudy with a slight (20%) chance of showers late at night.
• highs 86-88 cooling to near 80 Sunday lows 58-56.
• A mix of clouds and sun with a slight (20%) chance of showers Monday, partly cloudy with a slight (20%) chance of evening showers, mostly cloudy late at night,
• A mix of clouds and sun Tuesday, partly cloudy Tuesday night through Wednesday night,
• Then mostly sunny Thursday AM and partly cloudy in the afternoon.
• highs 82-80 warming to 85 Thursday lows 56-53. (seasonal averages high 83 low 52)

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Forecast for the Umpqua Basin including Roseburg:

• Partly cloudy in the AM, sunny this afternoon, mostly clear at night,
• Sunny Saturday AM, partly cloudy in the afternoon, mostly clear in the evening, then mostly cloudy late Saturday night,
• Mostly cloudy with a slight (20%) chance of showers Sunday AM, mostly cloudy in the afternoon, mostly cloudy with a slight (20%) chance of showers Sunday night.
• highs 89-80 lows near 60.
• Mostly cloudy with a slight (20%) chance of showers Monday AM, partly cloudy Monday afternoon and evening, mostly cloudy Tuesday AM, then partly cloudy Tuesday afternoon through Thursday.
• highs 83-88 lows 58-56. (seasonal averages high 85 low 57)

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

• Cloudy this AM, sunny this afternoon, partly cloudy in the evening, mostly cloudy with patchy coastal fog late tonight,
• Mostly cloudy with patchy coastal fog Saturday AM, mostly cloudy in the afternoon, mostly cloudy Saturday night,
• Mostly cloudy with a slight (20%) chance of showers Sunday afternoon and Sunday night.
• highs 62-65 cooling to 63 Sunday lows near 56.
• Mostly cloudy with a slight (20%) chance of showers Monday AM, partly cloudy in the afternoon, mostly cloudy Monday night through Tuesday night,
• Then partly cloudy Wednesday through Thursday.
• highs 64-60 warming to 63 Thursday lows near 55. (seasonal averages high 65 low 53).

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Forecast for the Cascades in Lane County:

• Sunny today, clear tonight,
• Mostly sunny Saturday, partly cloudy Saturday night,
• A mix of clouds and sun with a slight (20%) chance of showers Sunday afternoon, partly cloudy in the evening with a slight (20%) chance of showers, then mostly cloudy with a slight (20%) chance of showers Sunday night.
• free air freezing level 15,000 ft. today, 16,000 ft. tonight, 15,000 ft. Saturday and Saturday night, then snow level above 8,000 ft. Sunday and Sunday night.
• highs 76-70 lows 48-52 cooling to 47 Sunday night.
• A mix of clouds and sun with a slight (20%) chance of showers Monday, partly cloudy with a slight (20%) chance of evening showers, mostly cloudy with a slight (20%) chance of showers late Monday night,
• A mix of clouds and sun with a slight (20%) chance of showers Tuesday, partly cloudy with a slight (20%) chance of showers in the evening, just partly cloudy late Tuesday night,
• Partly cloudy Wednesday AM, mostly sunny in the afternoon, mostly clear Wednesday night,
• Then mostly sunny Thursday.
• snow level above 8,000 ft. Monday through Tuesday night, then free air freezing level 14,000 ft. Wednesday, 14,000 ft. Wednesday night, then 15,000 ft. Thursday.
• highs 70-72 Wednesday lows 50-47.

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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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