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Check out my latest Eugene Daily News Weather Or Not Column They Don’t Always Obey The Rules.

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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 weekly weather quiz question. What is a “temperature inversion?”  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 low pressure trough that has been controlling our weather is moving to the south away from us. Another low will take over but not before we get through the Memorial Day Holiday weekend with increasing sunshine.

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Air Quality Index:

Eugene-Springfield: The Air Quality Index is 19 in the Good category measuring Ozone.

Oakridge: The Air Quality Index is 10 in the Good category measuring Particulate Matter.

Cottage Grove: The Air Quality Index is 18 in the Good category measuring Ozone.

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

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Advisories:

• A HEALTH ADVISORY HAS BEEN CANCELLED FOR DETROIT LAKE LOCATED 46 MILES SOUTHEAST OF SALEM ON THE NORTH SANTIAM RIVER IN LINN AND MARION COUNTIES. WATER MONITORING ON MAY 18, 2015 HAS CONFIRMED THE TOXIN CONCENTRATIONS HAVE DROPPED TO A SAFE LEVEL.

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

• Cloudy with a slight (20%) chance of showers this evening, cloudy late tonight and Saturday AM with AM drizzle, a mix of clouds and sun in the afternoon, partly cloudy in the evening, cloudy late Saturday night and Sunday AM, a mix of clouds and sun in the afternoon, partly cloudy in the evening, mostly cloudy late Sunday night,
• Mostly cloudy in the AM, then partly cloudy Monday afternoon (Memorial Day) and at night.
• lows 50-46 highs 66-74.
• Partly cloudy Tuesday and Tuesday night,
• A mix of clouds and sun Wednesday, partly cloudy Wednesday night through Thursday night,
• Then a mix of clouds and sun Friday.
• highs 72-80 lows 46-49. (seasonal averages high 68 low 45)
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Eugene-Springfield Pollen Count

Trees: Moderate- 36

Grass: High- 28

Reading as of: 5/22/15

Data courtesy of Oregon Allergy Associates.

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Forecast for the Umpqua Basin including Roseburg:

• Mostly cloudy tonight and Saturday, partly cloudy in the evening, mostly cloudy late Saturday night and Sunday AM, partly cloudy in the afternoon and evening, mostly cloudy late Sunday night,
• Then partly cloudy Monday (Memorial Day) and at night.
• lows 52-48 highs 72-79.
• Partly cloudy Tuesday through Friday.
• highs 77-80 lows 48-50. (seasonal averages high 71 low 48)
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Forecast for the South Oregon Coast including Coos Bay and North Bend:

• Mostly cloudy tonight,
• Mostly cloudy with patchy AM drizzle, just mostly cloudy Saturday afternoon through Sunday, partly cloudy Sunday night,
• Partly cloudy Monday (Memorial Day) and Monday night.
• lows 52-49 highs 55-63.
• Partly cloudy Tuesday through Thursday night,
• Then mostly cloudy Friday.
• highs 62-60 lows near 50. (seasonal averages high 60 low 48)

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Forecast for the Cascades in Lane County:

• Mostly cloudy with a slight (20%) chance of showers this evening, becoming cloudy late tonight and Saturday AM, a mix of clouds and sun in the afternoon, partly cloudy in the evening, mostly cloudy late at night,
• Mostly cloudy Sunday AM, partly cloudy in the afternoon and evening, mostly cloudy Sunday night and Monday AM (Memorial Day), then partly cloudy Monday afternoon and at night.
• snow level above 8,000 ft. tonight, free air freezing level 10,000 ft. Saturday, 11,000 ft. Saturday night, then 10,000 ft. Sunday, 11,000 ft. Sunday night, 9,000 ft. Monday, then 10,000 ft. Monday night.
• lows near 38 highs 56-60.
• Partly cloudy with a slight (20%) chance of showers Tuesday and in the evening, just partly cloudy late Tuesday night through Wednesday night,
• A mix of clouds and sun with a slight (20%) chance of afternoon showers Thursday and Friday, partly cloudy with a slight (20%) chance of showers Thursday evening.
• snow level above 8,000 ft. Tuesday and Tuesday night, free air freezing level 10,000 ft. Wednesday and Wednesday night, then snow level above 8,000 ft. Thursday through Friday.
• highs 57-62 cooling to 58 Friday lows 38-43.

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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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