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Check out my latest Eugene Daily News Weather Or Not Column Things Seemed Much Simpler And Innocent Back Then.

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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 an “acre foot?” 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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A high pressure ridge (Shaded “Arch” shape in blue arrows) will be getting stronger to our west and moving right over us. The high will trap the hot air over the Pacific Northwest producing the hottest temperatures so far this year. There will be a slight chance of thunderstorms at the peak of the heating Friday through Monday morning.

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Air Quality Index:

Eugene-Springfield: The Air Quality Index is 36 in the Good category measuring Particulate Matter.

Oakridge: The Air Quality Index is 14 in the Good category measuring Particulate Matter.

Cottage Grove: The Air Quality Index is 39 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:

• Mostly clear tonight,
• Mostly sunny and warmer Wednesday and Thursday, mostly clear at night,
• Mostly sunny and warmer Thursday, then mostly clear at night,
• Sunny and hot Friday, then partly cloudy with a slight (20%) chance of (dry) thunderstorms Friday night.
• lows 53-62 highs 88-96.
• Mostly sunny with a slight (20%) chance of (dry) thunderstorms Saturday AM, partly cloudy and hot with a slight (20%) chance of showers and thunderstorms Saturday afternoon and Saturday night,
• A mix of clouds and sun with a slight (20%) chance of showers and thunderstorms and cooler Sunday afternoon, partly cloudy with a slight (20%) chance of showers and thunderstorms Sunday night and Monday AM, then just partly  cloudy and a bit cooler Monday afternoon through Tuesday.
• highs 98-90 warming to 93 Monday and Tuesday lows 63-60. (seasonal averages high 76 low 49)

Eugene/Springfield Pollen Count:

Trees: Low- 6

Grass: High- 58

Reading as of: 6/23/15

Data courtesy of Oregon Allergy Associates.

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Forecast for the Umpqua Basin including Roseburg:

• Mostly clear tonight,
• Sunny and warmer Wednesday and Thursday, mostly clear Wednesday night, mostly clear Thursday evening, partly cloudy late Thursday night,
• Partly cloudy and hot with a slight (20%) chance of thunderstorms  Friday afternoon and Friday night.
• lows 55-66 highs 90-101.
• Partly cloudy and still very warm with a slight (20%) chance of thunderstorms Saturday through Tuesday.
• highs 99-94 warming to 97 Monday cooling to near 95 Tuesday lows near 64. (seasonal averages high 78 low 53)

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

• Mostly clear tonight,
• Sunny and warmer Wednesday and Thursday, mostly clear Wednesday night, partly cloudy Thursday evening, mostly cloudy late at night,
• Partly cloudy and warmer with a slight (20%) chance of thunderstorms Friday and Friday night.
• lows 52-56 highs 60-70.
• Partly cloudy with a slight (20%) chance of thunderstorms Saturday through Sunday evening, mostly cloudy late Sunday night,
• Then partly cloudy Monday through Tuesday.
• highs 65-60 warming to 68 Monday cooling to 63 Tuesday lows near 55. (seasonal averages high 63 low 51)

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Forecast for the Cascades in Lane County:

• Mostly clear tonight,
• Mostly sunny and warmer Wednesday, mostly clear at night,
• Sunny and warmer Thursday, clear Thursday night,
• Sunny and warmer with a slight (20%) chance of showers and thunderstorms Friday afternoon, partly cloudy with a slight (20%) chance of (dry) thunderstorms late Friday night.
• free air freezing level 14,000 ft. tonight and Wednesday, 15,000 ft. Wednesday night, 16,000 ft. Thursday and Thursday night, snow level above 8,000 ft. Friday, free air freezing level 16,000 ft. Friday night.
• lows 46-60 highs 76-86.
• Mostly sunny Saturday AM, partly cloudy and a bit cooler with a slight (20%) chance of showers and thunderstorms in the afternoon, partly cloudy with a slight (20%) chance of evening thunderstorms, mostly cloudy with a slight (20%) chance of showers and thunderstorms late Saturday night,
• A mix of clouds and sun and a bit cooler Sunday with a slight (20%) chance of AM showers and thunderstorms, a (30%) chance of afternoon showers and thunderstorms, partly cloudy with a (30%) chance of showers and thunderstorms in the evening, then a slight (20%) chance of showers and thunderstorms Sunday night through Tuesday.
• snow level above 8,000 ft. Saturday through Tuesday.
• highs 84-80 warming to 82 Tuesday lows near 63.

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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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