Here is my new weekly weather quiz question. What is a “Swell?” 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. Good luck.

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Upper level high pressure (“Arch” shape with blue arrows) takes over again to warm us up quickly. It looks like a cold front will move through the Pacific Northwest next Sunday bringing the temperatures back down to near normal again.

 

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Air Quality Index:

Eugene-Springfield: The Air Quality Index is 31 in the good category measuring Ozone.

Oakridge: The Air Quality Index is 15 in the Good category measuring Particulate Matter.

Cottage Grove: The Air Quality Index is 31 in the Good category measuring Ozone.

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

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Advisories:

• A Blue-Green Algae health advisory remains in effect for Howard Bay (sometimes called Howards Bay or Howard’s Bay) in Upper Klamath Lake. It now includes all of Agency and Upper Klamath Lakes. People should avoid swallowing water while swimming or inhaling water droplets as a result of high-speed water activities, such as water skiing or power boating, in areas where blooms are identified. Although toxins are not absorbed through the skin, people who have skin sensitivities may experience a puffy, red rash at the affected area.

 

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

• Mostly sunny and a bit warmer today and Thursday, mostly clear at night,
• Sunny and very warm Friday, then clear Friday night.
• highs 92-94 lows 56-58 cooling back to 56 Friday night.
• Sunny and a bit cooler Saturday, clear in the evening, partly cloudy late Saturday night through Sunday evening (a bit cooler Sunday), mostly cloudy late Sunday night,
• Mostly cloudy Monday AM, mostly sunny and a bit warmer in the afternoon, mostly clear in the evening, mostly cloudy late Monday night,
• A mix of clouds and sun Tuesday AM, then mostly sunny in the afternoon.
• highs 85-82 lows near 53. (seasonal averages high 84 low 52)

 

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Eugene-Springfield Pollen Count:

Grass………. Moderate (5)

Trees………. Low (0)

Last Counted: 7/26/16

Data Courtesy of Oregon Allergy Associates.

The Grass and Tree Pollen season is officially over now.

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Forecast for Roseburg:

• Sunny and a bit warmer today, Thursday and Friday, clear each night.
• highs near 95 lows 60-62 cooling back to 60 Friday night.
• Partly cloudy Saturday, clear in the evening, mostly cloudy Saturday night through Sunday night,
• Mostly cloudy and a bit cooler Sunday and Sunday night,
• Then partly cloudy Monday through Tuesday.
• highs 87-84 lows near 57. (seasonal averages high 86 low 57)

 

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Forecast for The South Oregon Coast Including Coos Bay and North Bend:

• Partly cloudy this AM, sunny and a bit warmer this afternoon, mostly clear tonight,
• AM coastal clouds and sunny in the afternoon while sunny inland Thursday afternoon, mostly clear at night,
• Partly cloudy in the AM, sunny Friday afternoon, then partly cloudy Friday night.
• highs near 70 lows near 57.
• Partly cloudy and a bit cooler Saturday, clear in the evening, then mostly cloudy late Saturday night through Tuesday.
• highs near 67 lows near 56. (seasonal averages high 65 low 53)

 

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Forecast for the Cascades in Lane County:

• Sunny and a bit warmer today, Thursday and Friday, clear each night,
• free air freezing level 15,000 ft. today, then 16,000 ft. tonight through Friday night.
• highs 82-85 lows 50-54 cooling to 52 Friday night.
• Sunny Saturday, mostly clear at  night,
• Then mostly sunny and a bit cooler Sunday and Monday, mostly clear Sunday night, partly cloudy Monday night and Tuesday AM, then sunny Tuesday afternoon.
• free air freezing level 16,000 ft. Saturday and Saturday night, 15,000 ft. Sunday, 14,000 ft. Sunday night, 13,000 ft. Monday, 14,000 ft. Monday night, then 13,000 ft. Tuesday.
• highs 76-70 warming to 72 Monday and Tuesday lows near 45.

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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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