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Check out my latest Eugene Daily News Weather Or Not Column A Perfect Day In Every Way.

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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 “macroburst?”  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 trough of low pressure  (Shaded “U” shape with blue arrows) is moving from west to east through Washington and keeps he chance of mountain thunderstorms alive. Another low is sitting off the coast of California (“U” shape with blue arrows.) and it will move to the north and east by the second half of the weekend increasing the chances for another round of mountain thunderstorms.

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Advisories: None at this time.

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Air Quality Index:

Eugene-Springfield: The Air Quality Index is 33 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 30 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 (60)

Trees……….Low (9)

Last Counted: 7/8/14

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:

• Clear tonight,
• Mostly sunny and warm Thursday, partly cloudy at night,
• Mostly cloudy Friday, mostly cloudy with with a slight (20%) chance of showers and thunderstorms in the evening, a slight (20%) chance of showers late Friday night,
• Mostly cloudy with a slight (20%) chance of showers in the AM, partly cloudy Saturday afternoon and at night.
• lows 53-59 highs 88-93.
• Partly cloudy Sunday AM, mostly sunny in the afternoon, partly cloudy at night and Monday AM, mostly sunny in the afternoon, mostly clear Monday night,
• Then mostly sunny Tuesday and Wednesday, mostly clear Tuesday night.
• highs 92-90 lows near 60. (seasonal averages high 81 low 51)

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Forecast for the Umpqua Basin including Roseburg:

• Mostly clear tonight,
• Cloudy in the AM, sunny Thursday afternoon, mostly clear in the evening, partly cloudy late Thursday night,
• Mostly cloudy Friday AM, partly cloudy with a slight (20%) chance of isolated thunderstorms in the afternoon and evening, partly cloudy late Friday night,
• AM clouds Saturday, sunny in the afternoon, then mostly clear Saturday night.
• lows 56-60 highs 92-88 warming to 94 Saturday.
• Mostly sunny Sunday, Monday, and Tuesday, and Wednesday, mostly clear each night.
• highs 92-90 lows near 58. (seasonal averages high 83 low 56)

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

• Partly cloudy this evening, mostly cloudy late tonight,
• Mostly cloudy Thursday AM, sunny in the afternoon, cloudy partly  in the evening, mostly cloudy late at night,
• AM clouds, partly cloudy with a slight (20%) chance of showers Friday, partly cloudy in the evening,  cloudy last Friday night,
• Cloudy Saturday AM, sunny in the afternoon, partly cloudy Saturday night.
• lows 55-58 cooling back to 55 Saturday night highs 66-70 cooling to 65 Saturday.
• Partly cloudy Sunday through Monday, mostly cloudy at night,
• Then mostly sunny Tuesday and Wednesday, mostly clear at night.
• highs 65-68 cooling back to 65 Tuesday and Wednesday lows near 56. (seasonal averages high 64 low 53).

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Forecast for the Cascades in Lane County:

• Mostly clear tonight,
• Mostly sunny Thursday, partly cloudy at night,
• A mix of clouds and sun with a (30%) chance of showers and thunderstorms Friday afternoon,  evening, mostly cloudy with a (40%) chance of showers and thunderstorms Friday night,
• Mostly cloudy with a slight (20%) chance of showers Saturday AM, partly cloudy with a sight (20%) chance of showers and thunderstorms in the afternoon and evening, then a slight (20%) chance of showers late Saturday night.
• free air freezing level 15,000 ft. tonight through Thursday night, then snow level above 8,000 ft. Friday through Saturday night.
• lows 48-55 cooling to near 52Friday night warming to 54 Saturday night highs 80-75 warming to 83 Saturday.
• Partly cloudy Sunday with a slight (20%) chance of AM showers, a slight (20%) chance afternoon and evening showers and thunderstorms, a slight (20%) chance of showers late Sunday night,
• Partly cloudy Monday with a slight (20%) chance of AM showers, mostly clear at night,
• Then mostly sunny Tuesday and Wednesday, mostly clear Tuesday night.
• snow level above 8,000 ft. Sunday through Monday free air freezing level 16,000 ft. Monday night through Wednesday.
• highs 84-80 lows 54-58 cooling to 55 Tuesday 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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