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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 the 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  increasing the chances for another round of mountain showers and thunderstorms.

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Advisories: None at this time.

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Air Quality Index:

Eugene-Springfield: The Air Quality Index is 42 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 21 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 (59)

Trees……….Low (5)

Last Counted: 7/10/14

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,
• A mix of clouds and sun Friday with a slight (20%) chance of showers and thunderstorms in the afternoon, a slight (20%) chance of showers late Friday night,
• Mostly cloudy in the AM, partly cloudy Saturday afternoon and at night,
• A mix of clouds and sun with a slight (20%) chance of showers and thunderstorms Sunday and in the evening, then partly cloudy at night.
• lows 56-59 highs 87-92 cooling to 88 Sunday.
• A mix of clouds and sun Monday AM, mostly sunny in the afternoon, mostly clear Monday night,
• Then mostly sunny Tuesday, Wednesday, and Thursday, mostly clear at night.
• highs 93-95 cooling to 92 Thursday lows near 60. (seasonal averages high 81 low 51)

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Forecast for the Umpqua Basin including Roseburg:

• Mostly clear this evening, mostly cloudy late tonight,
• Mostly cloudy Friday with a slight (20%) chance of isolated thunderstorms in the afternoon and Friday night (under 0.10 in. of rain possible),
• AM clouds Saturday, sunny in the afternoon, partly cloudy in the evening, mostly clear late Saturday night,
• Partly cloudy Sunday and at night.
• lows near 60 highs 94-96 cooling to 87 Sunday.
• Mostly sunny Monday, Tuesday, Wednesday, and Thursday, mostly clear each night.
• highs 95-102 cooling to near 99 Thursday lows 63-60. (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 with a slight (20%) chance of isolated inland thunderstorms Friday afternoon, mostly cloudy with patchy coastal fog late Friday night,
• Mostly cloudy Saturday with patchy AM coastal fog, sunny in the afternoon, partly cloudy Saturday night with patchy coastal fog late,
• Patchy AM fog, partly cloudy Sunday afternoon and at night.
• lows 55-57 highs 63-60 warming to 65 Sunday.
• Partly cloudy Monday, mostly clear at night,
• Then mostly sunny Tuesday, Wednesday, and Thursday, mostly clear each night.
• highs 65-72 cooling to 67 Thursday lows near 58. (seasonal averages high 64 low 53).

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Forecast for the Cascades in Lane County:

• Partly cloudy tonight,
• A mix of clouds and sun with a (30%) chance of showers and thunderstorms in the afternoon (under 0.10 in. of rain possible, more in storms), a (30%) chance of showers and thunderstorms Friday afternoon (0.10 in. of rain possible, more in storms), mostly cloudy with a (40%) chance of showers and thunderstorms Friday night (0.10 in. of rain possible, more in storms),
• 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,
• A mix of clouds and sun Sunday with a slight (20%) chance of AM showers and thunderstorms, mostly cloudy a slight (20%) chance afternoon and evening showers and thunderstorms, then partly cloudy late Sunday night.
• free air freezing level 15,000 ft. tonight, then snow level above 8,000 ft. Friday through Sunday night.
• lows 53-56 cooling back to 53 Sunday night highs 75-83.
• Partly cloudy Monday, mostly clear at night,
• Then mostly sunny Tuesday, Wednesday, and Thursday, mostly clear each night.
• free air freezing level 15,000 ft. Monday, then 16,000 ft. Monday night through Thursday.
• highs 84-86 cooling to 81 Thursday lows 58-55.

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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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