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Check out my latest Eugene Daily News Weather Or Not Column Hot Air Doesn’t Necessarily Mean Warm Water.

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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 “debris cloud?” 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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High pressure (Shaded “Arch” shape with blue arrows) is building offshore and will keep a northwest airflow with just enough moisture to hold down temperatures, bring late night and early morning clouds and possible fog, but not enough to produce any rain. A weak cold front will cool things a bit Friday, then high pressure returns to warm us up again for the weekend.

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Air Quality Index:

Eugene-Springfield: The Air Quality Index is 35 in the Good category measuring Ozone.

Oakridge: The Air Quality Index is 19 in the Good category measuring Particulate Matter.

Cottage Grove: The Air Quality Index is 38 in the Good category measuring Ozone.

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 Thursday, partly cloudy Thursday night,
• Cloudy Friday AM, a mix of clouds and sun and a bit cooler in the afternoon, partly cloudy at night,
• A mix of clouds and sun Saturday AM, mostly sunny and warmer in the afternoon, then mostly clear Saturday night.
• lows 46-50 cooling back to 46 Friday night warming to 52 Saturday night highs 80-76 warming to 82 Saturday.
• Mostly sunny Sunday AM, partly cloudy in the afternoon and evening, mostly cloudy late Sunday night,
• Mostly cloudy Monday AM, partly cloudy and cooler in the afternoon and at night,
• Mostly sunny and a bit warmer Tuesday, partly cloudy Tuesday night and Wednesday AM, then mostly sunny Wednesday afternoon.
• highs 82-76 warming to 84 Wednesday lows near 50. (seasonal averages high 73 low 48)

Eugene/Springfield Pollen Count:

Trees: Low- 8

Grass: High- 126

Reading as of: 6/17/15

Data courtesy of Oregon Allergy Associates.

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Forecast for the Umpqua Basin including Roseburg:

• Mostly clear tonight,
• Sunny Thursday, mostly clear at night,
• Mostly cloudy Friday AM, sunny and a bit cooler in the afternoon, mostly clear in the evening,  partly cloudy late Friday night,
• Mostly sunny Saturday, then mostly clear at night.
• lows 54-57 highs 83-86.
• Mostly sunny Sunday, Monday and Tuesday, mostly clear each night,
• Then sunny Wednesday.
• highs 83-88 lows near 54. (seasonal averages high 76 low 52)

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

• Mostly clear this evening, mostly cloudy late tonight,
• Partly cloudy Thursday AM, sunny in the afternoon, partly cloudy in the evening, mostly cloudy late Thursday night,
• Mostly cloudy Friday AM, partly cloudy and warmer in the afternoon and evening, mostly cloudy Friday night and Saturday AM, sunny in the afternoon, clear in the evening, then partly cloudy late Saturday night.
• lows 53-50 warming to 55 Friday night cooling to 52 Saturday night highs 60-62 cooling back to 60 Saturday.
• Partly cloudy and cooler Sunday and Sunday night,
• Partly cloudy Monday through Tuesday, mostly clear at night,
• Then mostly sunny Wednesday.
• highs near 60 lows 53-50. (seasonal averages high 62 low 51)

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Forecast for the Cascades in Lane County:

• Mostly clear tonight,
• Mostly sunny Thursday, mostly clear at night,
• Partly cloudy Friday through Saturday AM, mostly sunny in the afternoon, then mostly clear at night.
• free air freezing level 13,000 ft. tonight and Thursday, 12,000 ft. Thursday night, 11,000 ft. Friday night through Saturday night.
• lows 43-40 warming to 47 Saturday night highs near 70-64 warming to 73 Saturday.
• Mostly sunny Sunday AM, partly cloudy in the afternoon through Monday AM, mostly sunny Monday afternoon, Tuesday and Wednesday, mostly clear to partly cloudy each night.
• free air freezing level 12,000 ft. Sunday, 12,000 ft. falling to 10,000 ft. Sunday night, 10,000 ft. rising to 11,000 ft. Monday afternoon, 11,000 ft. Monday night, 11,000 ft. rising to 13,000 ft. Tuesday, 13,000 ft. falling to 12,000 ft. late Tuesday night, then 12,000 ft. rising to 13,000 ft. Wednesday.
• highs 73-66 warming to 78 Wednesday lows near 42.

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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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