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Check out my latest Eugene Daily News Weather Or Not Column Some Anniversaries Aren’t To Be Cheerfully Celebrated.

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And don’t forget my latest feature story in the continuing series on service club organizations called This Moose Isn’t Named Bullwinkle.

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And my feature article about Contractors Electric called Is The Ground Wire The White One Or The Black One?

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Here is my new weekly weather quiz question. What is a “lysimeter?”  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 (“Arch” shape with blue arrows offshore) has taken over to keep us warmer than normal. An upper level low (Shaded “U” shape with blue arrows of the same graphic) will swing in through northern California returning the clouds and the chance of showers and at the same time cool us down.

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Air Quality Index:

Eugene-Springfield: The Air Quality Index is 48 in the Good category measuring Particulate Matter.

Oakridge: The Air Quality Index is 25 in the Good category measuring Particulate Matter.

Cottage Grove: The Air Quality Index is 28 in the Good category measuring Particulate Matter.

Data courtesy of Lane Regional Air Protection Agency (LRAPA).

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Advisories: None At This Time.

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Forecast for the Southern and lower Mid Willamette Valley including Eugene-Springfield and Albany-Corvallis:

• Partly cloudy tonight,
• A mix of clouds and sun Saturday and Sunday, partly cloudy Saturday night, increasing clouds to mostly cloudy with a good (50%) chance of showers Sunday night,
• Cloudy with a good (50%) chance of showers Monday and Monday night.
• lows 50-53 highs 80-82 cooling to 67 Monday.
• Mostly cloudy with a good (50%) chance of showers Tuesday, a (30%) chance of evening showers, a slight (20%) chance of showers late at night,
• A mix of clouds and sun with a slight (20%) chance of showers Wednesday, mostly cloudy with a slight (20%) chance of showers in the evening, just partly cloudy late Wednesday night,
• A mix of clouds and sun Thursday, then partly cloudy Thursday night and Friday.
• highs 66-72 lows 50-47. (seasonal averages high 69 low 45)
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Eugene-Springfield Pollen Count

Trees: Moderate- 16

Grass: Very High- 245

Reading as of: 5/28/15

Data courtesy of Oregon Allergy Associates.

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Forecast for the Umpqua Basin including Roseburg:

• Partly cloudy this evening, mostly cloudy late tonight,
• Mostly cloudy Saturday with a slight (20%) chance of thunderstorms and a bit cooler in the afternoon and evening, mostly cloudy late Saturday night,
• Mostly cloudy with a slight (20%) chance of thunderstorms Sunday afternoon and evening, cloudy with a (30%) chance of showers late Sunday night,
• Cloudy with AM showers likely (60%) Monday, a (40%) chance of showers and cooler in the afternoon and Monday night.
• lows 54-56 cooling back to 54 Monday night highs 84-68.
• A (40%) chance of showers and cooler Tuesday, mostly cloudy with a slight (20%) chance of showers Tuesday night through Thursday AM, then just partly cloudy and warmer Thursday afternoon through Friday AM, then sunny Friday afternoon.
• highs 70-76 lows near 50. (seasonal averages high 72 low 49)
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Forecast for the South Oregon Coast including Coos Bay and North Bend:,

• Partly cloudy this evening, mostly cloudy with patchy coastal fog late tonight and Saturday AM, mostly cloudy Saturday afternoon though Sunday, cloudy with a slight (20%) chance of inland evening thunderstorms and a (30%) chance of showers late at night while a (30%) chance of coastal showers late Sunday night,
• Cloudy with AM showers likely (60%), then a (30%) chance of showers Monday and Monday night.
• lows 50-53 highs 58-60 cooling back to 58 Monday.
• Mostly cloudy with a (30%) chance of showers Tuesday, a slight (20%) chance of showers Tuesday night through Wednesday evening, just mostly cloudy Thursday AM, then partly cloudy Thursday afternoon through Friday.
• highs 60-62 lows near 50. (seasonal averages high 60 low 49)

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Forecast for the Cascades in Lane County:

• Partly cloudy with a slight (20%) chance of showers and thunderstorms this evening, just partly cloudy late tonight and Saturday AM, mostly cloudy with a slight (20%) chance of showers and thunderstorms in the afternoon, partly cloudy with a slight (20%) chance of thunderstorms in the evening, just partly cloudy late Saturday night,
• A mix of clouds and sun with a (40%) chance of showers and thunderstorms Sunday afternoon, becoming mostly cloudy with a good (50%) chance of showers and a slight (20%) chance of thunderstorms Sunday night,
• Cloudy and cooler with a good (50%) chance of showers and thunderstorms Monday and in the evening, mostly cloudy with a good (50%) chance of showers late at night.
• snow level above 8,000 ft. tonight through Monday, then above 8,000 ft. falling to 7,500 ft. late Monday night.
• lows 42-45 cooling to 38 Monday night highs 70-73 cooling to 54 Monday.
• Mostly cloudy with a good (50%) chance of showers Tuesday, a (30%) chance of evening showers, a slight (20%) chance of showers late Tuesday night,
• A mix of clouds and sun with a slight (20%) chance of showers Wednesday,  mostly cloudy with a slight (20%) chance of showers Wednesday night,
• A mix of clouds and sun with a slight (20%) chance of showers Thursday, partly cloudy with a slight (20%) chance of evening showers, Thursday afternoon, then just partly cloudy late Thursday night and Friday.
• snow level 7,000 ft. Tuesday through Wednesday, 7,500 ft. Wednesday night and Thursday, 8,000 ft. through the evening, then free air freezing level 10,000 ft. Thursday night and Friday.
• highs 52-56 lows near 37.

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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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Get your local Eugene-Springfield and Lane County news on-line at eugenedailynews.com.

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