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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 FRIDAY FOR WIND AND LOW RELATIVE HUMIDITY FOR THE EAST SLOPES OF THE NORTHERN OREGON CASCADES AND THE EAST SLOPES OF THE CENTRAL OREGON CASCADES.

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Air Quality Index:

Eugene-Springfield: The Air Quality Index is 27 in the Good category measuring Particulate Matter at HWY 99, Eugene. Data courtesy of Lane Regional Air Protection Agency (LRAPA)

Oakridge: The Air Quality Index is 23 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:

• Sunny and cooler this afternoon, clear tonight,
• Mostly sunny Friday, mostly clear Friday night,
• Partly cloudy Saturday, partly cloudy with a slight (20%) chance of showers in the evening, mostly cloudy late at night.
• highs 87-85 lows 52-58.
• 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, mostly cloudy with a slight (20%) chance of showers late at night and Monday AM, partly cloudy with a slight (20%) chance of showers inn the afternoon and mostly cloudy at night,
• Mostly cloudy Tuesday AM, then partly cloudy Tuesday afternoon through Wednesday.
• highs 77-80 lows 54-58. (seasonal averages high 83 low 52)

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Forecast for the Umpqua Basin including Roseburg:

• Partly cloudy this AM, sunny this afternoon, clear tonight,
• Partly cloudy in the AM, sunny Friday afternoon, mostly clear at night,
• Sunny Saturday AM, partly cloudy in the afternoon, mostly clear in the evening, then mostly cloudy late Saturday night.
• highs 92-86 lows 56-60.
• Mostly cloudy with a slight (20%) chance of showers Sunday AM, just mostly cloudy in the afternoon, mostly cloudy with a slight (20%) chance of showers late Sunday night and Monday AM, mostly cloudy Monday afternoon through Tuesday, then partly cloudy Tuesday night and Wednesday.
• highs 82-84 lows near 58. (seasonal averages high 85 low 57)

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

• Mostly cloudy with patchy AM fog, sunny this afternoon, mostly clear this evening, partly cloudy late tonight,
• Mostly cloudy Friday AM, sunny in the afternoon, mostly clear in the evening, mostly cloudy with patchy coastal fog late Friday night,
• Mostly cloudy with patchy coastal fog Saturday AM, partly cloudy in the afternoon, then mostly cloudy Saturday night.
• highs 62-64 lows 54-58.
• Mostly cloudy with a slight (20%) chance of showers Sunday AM, mostly cloudy with a slight (20%) chance of showers Sunday night through Monday evening, just mostly cloudy Monday night and Tuesday, then partly cloudy Tuesday night and Wednesday.
• highs near 64 lows near 57. (seasonal averages high 65 low 53).

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Forecast for the Cascades in Lane County:

• Sunny today, clear tonight,
• Sunny Friday, clear at night,
• Mostly sunny Saturday, partly cloudy in the afternoon and Saturday night.
• free air freezing level 15,000 ft. today, 16,000 ft. tonight, 15,000 ft. Friday, 16,000 ft. at night, then 15,000 ft. Saturday and Saturday night.
• highs 77-75 lows near 48.
• 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, mostly cloudy with a slight (20%) chance of showers Sunday night and Monday, mostly cloudy with a slight chance of evening showers, partly 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, mostly cloudy with a slight (20%) chance of showers in the evening, then partly cloudy late Tuesday night and Wednesday AM and mostly sunny Wednesday afternoon.
• snow level above 8,000 ft. Sunday through Tuesday night, then free air freezing level 14,000 ft. Wednesday.
• highs 69-72 Wednesday lows 46-50 cooling to near 47 Monday 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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