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Check out my latest Eugene Daily News Weather Or Not Column Kites Need It And So Do Sail Boats.

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And don’t forget my latest feature story in the continuing series on service club organizations called Oregon Has Two Kinds Of “Elks” Four Legged and Two Legged.

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Here is my new weekly weather quiz question. What is a “Multiple Vortex Tornado?” 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 high pressure ridge (Shaded “Arch” shape) is moving closer to the Pacific Northwest. As the high moves closer to us the chance of showers returns Friday because of an increase in onshore airflow. A frontal systemwill be moving into Oregon by Sunday, possibly bringing a little chance of rain out ahead of it for Saturday and again on Sunday.

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Advisories: None at This Time.

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Air Quality Index:

Eugene-Springfield: The Air Quality Index is 30 in the Good category measuring Ozone at Amazon Park, Eugene. Data courtesy of Lane Regional Air Protection Agency (LRAPA)

Oakridge: The Air Quality Index is 15 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 (84)

Trees……….Moderate (17)

Last Counted: 5/21/14

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, mostly cloudy at night,
• Mostly cloudy with a slight (20%) chance of showers Friday and Friday night,
• A mix of clouds and sun Saturday, then partly cloudy at night.
• lows 47-54 cooling to 46 Saturday night highs 78-70.
• A mix of clouds and sun with a slight (20%) chance of showers Sunday afternoon, mostly cloudy with a (30%) chance of showers Sunday night,
• A mix of clouds and sun with a (30%) chance of showers Monday (Memorial Day), a slight (20%) chance of showers at night,
• Mostly cloudy with a (30%) chance of showers Tuesday, a slight (20%) chance of showers at night,
• Then a mix of clouds and sun with a slight (20%) chance of showers Wednesday.
• highs 70-65 warming to 68 Monday lows 49-45. (seasonal averages high 68 low 44).

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Forecast for the Umpqua Basin including Roseburg:

• Mostly clear tonight,
• Partly cloudy Thursday and Thursday night,
• Mostly cloudy with a slight (20%) chance of showers Friday and at night,
• Mostly cloudy with a slight (20%) chance of showers Saturday AM, then partly cloudy in the afternoon and Saturday night.
• lows 49-55 cooling back to 49 Saturday night highs 85-76.
• Mostly cloudy Sunday, mostly cloudy with a (40%) chance of showers at night,
• A (30%) chance of showers Monday (Memorial Day), a slight (20%) chance of showers at night,
• Then mostly cloudy with a slight (20%) chance of showers Tuesday through Wednesday.
• highs 78-72warming to near 75 Wednesday lows 50-47 (seasonal averages high 71 low 48)

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

• Partly cloudy this evening, mostly cloudy late tonight,
• Partly cloudy Thursday and in the evening, mostly cloudy late at night,
• Mostly cloudy with a slight (20%) chance of showers Friday, mostly cloudy Friday night,
• Mostly cloudy Saturday, partly cloudy in the evening, mostly cloudy Saturday night.
• lows 53-56 cooling back to 53 Saturday night highs near 68.
• A (40%) chance of showers Sunday, partly cloudy in the evening, mostly cloudy Sunday night,
• Mostly cloudy with a (30%) chance of showers Monday (Memorial Day), a slight (20%) chance of showers Monday night and Tuesday, then partly cloudy with a slight (20%) chance of showers Tuesday night and Wednesday.
• highs 66-64 lows 54-49. (seasonal averages high 59 low 48).

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Forecast for the Cascades in Lane County:

• Mostly clear tonight,
• Partly cloudy with a slight (20%) chance of showers Thursday afternoon, mostly cloudy with a slight chance of evening showers, mostly cloudy late at night,
• Mostly cloudy with a slight (20%) chance of showers Friday AM, a (30%) chance of showers in  the afternoon, mostly cloudy with a slight (20%) chance of showers Friday evening, partly cloudy with a slight (20%) chance of showers at night,
• Then partly cloudy Saturday and at night.
• free air freezing level 12,000 ft. tonight, snow level above 8,000 ft. Friday and Friday night, free air freezing level 11,000 ft. Saturday, then 12,000 ft. Saturday night.
• lows 40-36 highs 68-58.
• A mix of clouds and sun with a slight (20%) chance of showers Sunday, mostly cloudy with a good (50%) of showers at night,
• A mix of clouds and sun with a good (50%) chance of showers Monday (Memorial Day), partly cloudy with a slight (20%) chance of showers Monday night,
• Partly cloudy with a (30%) chance of showers Tuesday, then partly cloudy with a slight (20%) chance of showers at night and Wednesday.
• snow level above 8,000 ft. Sunday and Sunday night, 7,500 ft. Monday, 7,000 ft. at night, 6,500 ft. Tuesday, 7,000 ft. Tuesday night, then 6,500 ft. Wednesday.
• highs 60-48 warming to 56 Wednesday lows 38-32 warming to 35 Wednesday night.

**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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Get your local Eugene-Springfield and Lane County news on-line at Eugene Daily News.com.

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