Here is my weekly weather quiz question. What is a “Symmetric Double Eye?”  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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Weak high pressure (“Arch” shape in blue arrows) takes over to raise the temperatures again Wednesday, but another upper level low moves in by the end of the week.  By Friday a weak cold front will move through Oregon cooling us again just in time for the weekend.

 

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Air Quality Index:

Eugene-Springfield: The Air Quality Index is 25 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 21 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 is in effect for Odell Lake in Lane County. Water testing has confirmed the presence of blue-green algae and the toxins they produce. 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.
• A Blue-Green Algae health advisory remains in effect for Howard Bay (sometimes called Howards Bay or Howard’s Bay) in Upper Klamath Lake ONLY. 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:

• Clear tonight,
• Mostly sunny and a bit warmer Thursday, partly cloudy Thursday night,
• Clouds and sun in the AM, sunny but cooler Friday afternoon, clear in the evening, then partly cloudy late Friday night,
• A mix of clouds and sun Saturday AM, mostly sunny and a bit cooler in the afternoon, partly cloudy in the evening, then mostly cloudy late Saturday night.
• lows 52-54 cooling back to 52 Friday night warming to 55 Saturday night highs 92-80.
• AM clouds, partly cloudy and a bit cooler with a slight (20%) chance of showers Sunday afternoon and evening, mostly cloudy late Sunday night,
• A mix of clouds and sun and a bit warmer Monday, partly cloudy at night and Tuesday AM, mostly sunny and a bit warmer Tuesday afternoon and Wednesday, mostly cloudy Tuesday night.
• highs 77-84 lows near 55. (seasonal averages high 84 low 52)

 

 

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Eugene-Springfield Pollen Count:

Grass………. Moderate (6)

Trees………. Low (2)

Last Counted: 8/2/16

Data Courtesy of Oregon Allergy Associates.

The Grass and Tree Pollen season is officially over now.

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Forecast for Roseburg:

• Clear tonight,
• Sunny and a bit warmer Thursday, mostly clear at night,
• AM clouds, mostly sunny and a bit cooler Friday, mostly clear in the evening, mostly cloudy late Friday night,
• Partly cloudy and a bit cooler Saturday and Saturday night.
• lows 57-59 cooling to 55 Friday night warming to 57 Saturday night highs 92-82.
• Partly cloudy and a bit cooler with a slight (20%) chance of showers Sunday and Sunday night,
• Mostly cloudy and a bit warmer Monday, partly cloudy Monday night and Tuesday AM, sunny Tuesday afternoon, mostly clear in the evening, partly cloudy late at night,
• Partly cloudy Wednesday AM, then mostly sunny and a bit warmer in the afternoon..
• highs 80-86 lows near 58. (seasonal averages high 86 low 57)

 

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

• Clear this evening at the shore and mostly cloudy late tonight while clear inland tonight and breezy (at the shore Wind: N 15-25 mph decreasing to N 10-15 mph late tonight),
• AM clouds, partly cloudy Thursday afternoon, clear in the evening, mostly cloudy late Thursday night and Friday AM, partly cloudy in the afternoon and evening, mostly cloudy late Friday night,
• AM clouds, partly cloudy Saturday afternoon and evening, then mostly cloudy late at night.
• lows near 55 highs near 65.
• AM clouds Sunday, partly cloudy with a slight (20%) chance of afternoon showers, mostly cloudy with a slight (20%) chance of showers Sunday night and Monday, just mostly cloudy Monday night,
• Partly cloudy Tuesday and Tuesday night,
• Mostly cloudy Wednesday AM, then becoming sunny Wednesday afternoon.
• highs near 66 lows near 56. (seasonal averages high 65 low 53)

 

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Forecast for the Cascades in Lane County:

• Clear tonight,
• Sunny Thursday AM, partly cloudy and a bit warmer in the afternoon and at night,
• Partly cloudy and cooler Friday, partly cloudy and colder and Friday night,
• Mostly sunny in the AM, then partly cloudy and a bit cooler Saturday afternoon and at night.
• free air freezing level 15,000 ft. tonight, 14,000 ft. Thursday through Friday night, then 13,000 ft. Friday and Friday night.
• lows 43-50 cooling to 44 Saturday night highs 82-68.
• Partly cloudy and a bit cooler Sunday with a slight (20%) chance of showers in the afternoon and evening, mostly cloudy late Sunday night
• Partly cloudy  and a bit warmerMonday and at night,
• Then mostly sunny and a bit cooler Tuesday and Wednesday (a bit warmer), mostly clear Tuesday night.
• snow level above 8,000 ft. Sunday and Sunday night, 12,000 ft. Monday through Tuesday, 13,000 ft. Tuesday night, then 14,000 ft. Wednesday.
• highs 65-68 cooling to 66 Tuesday warming to 74 Wednesday 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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