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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 HEAT ADVISORY IS IN EFFECT UNTIL 10 PM TONIGHT FOR EASTERN CURRY COUNTY, JOSEPHINE COUNTY, AND JACKSON COUNTY.
• 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 53 in the Moderate category measuring Particulate Matter at Springfield City Hall. Data courtesy of Lane Regional Air Protection Agency (LRAPA)

Oakridge: The Air Quality Index is 55 in the Moderate 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 clear tonight,
• Partly cloudy Thursday morning, sunny in the afternoon, clear in the evening, partly cloudy late Thursday night,
• Areas of AM clouds, mostly sunny Friday afternoon, partly cloudy late Friday night,
• A mix of clouds and sun Saturday, then mostly cloudy with a slight (20%) chance of showers late at night.
• lows 54-50 warming to 58 Saturday night highs 87-83.
• Mostly cloudy with a slight (20%) chance of showers Sunday through Monday evening, just mostly cloudy Monday night,
• Then a mix of clouds and sun Tuesday and Wednesday, partly cloudy at night.
• highs 77-80 lows 54-58. (seasonal averages high 83 low 52)

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Forecast for the Umpqua Basin including Roseburg:

• Mostly clear tonight,
• Partly cloudy in the AM, sunny Thursday afternoon, Friday and Saturday, mostly clear Thursday night, Friday night, and Saturday evening, then mostly cloudy with a slight (20%) chance of showers late Saturday night.
• lows 58-56 warming to 59 Saturday night highs 95-86.
• Mostly cloudy with a slight (20%) chance of showers Sunday through Monday morning, just mostly cloudy Monday afternoon through Tuesday, then partly cloudy Tuesday night and Wednesday.
• highs 82-78 warming to 84 Wednesday lows 59-54 warming to 57 Tuesday night. (seasonal averages high 85 low 57)

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

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

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Forecast for the Cascades in Lane County:

• Mostly clear tonight,
• Sunny Thursday and Friday, mostly clear nights,
• Mostly sunny Saturday AM, partly cloudy in the afternoon and Saturday night.
• free air freezing level 16,000 ft. tonight, then 15,000 ft. Thursday through Saturday night.
• lows 49-45 highs 77-70.
• A mix of clouds and sun with a slight (20%) chance of showers Sunday afternoon, partly cloudy 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 Tuesday night and Wednesday.
• snow level above 8,000 ft. Sunday through Tuesday night, then free air freezing level 14,000 ft. Wednesday.
• highs 62-68 cooling to 65 Tuesday warming to near 70 Wednesday lows 45-48.

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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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