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 33 in the Good category measuring Ozone.

Oakridge: The Air Quality Index is 8 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 RED FLAG WARNING IS IN EFFECT FOR GUSTY WINDS AND LOW HUMIDITY FROM NOON UNTIL 9 PM TODAY FOR THE SOUTH CENTRAL OREGON DESERT INCLUDING THE BLM LAND IN EASTERN LAKE COUNTY AND WESTERN HARNEY COUNTY.
• 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:

• Partly cloudy this evening, mostly clear tonight,
• AM clouds, mostly sunny and a bit warmer Wednesday, clear at night,
• Mostly sunny and a bit warmer Thursday, clear in the evening then partly cloudy late Thursday night,
• Clouds and sun in the AM, sunny but a bit cooler Friday afternoon, clear in the evening, then partly cloudy late Friday night.
• lows 48-55 highs 85-90 cooling back to 85 Friday.
• Partly cloudy Saturday AM, mostly sunny and a bit cooler in the afternoon, mostly clear in the evening, mostly cloudy late Saturday night,
• A mix of clouds and sun and a bit cooler Sunday, partly cloudy Sunday night through  Monday evening, mostly cloudy late Monday night,
• Then partly cloudy and a bit warmer Tuesday.
• highs 82-80 warming to 85 Tuesday lows near 55. (seasonal averages high 84 low 52)

 

 

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Eugene-Springfield Pollen Count:

Grass………. Low (2)

Trees………. Low (0)

Last Counted: 7/30/16

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 Wednesday, clear at night,
• Partly cloudy in the AM, mostly sunny and a bit warmer Thursday afternoon, mostly clear at night,
• Then partly cloudy and a bit cooler Friday and Friday night,
• lows 53-59 cooling to 56 Friday night highs 88-90 cooling to 83 Friday.
• Partly cloudy and a bit cooler Saturday through Sunday night,
• Mostly cloudy and a bit warmer Monday through Tuesday AM, then sunny and a bit warmer Tuesday afternoon.
• highs 82-86 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:

• Partly cloudy at the shore this evening and mostly cloudy late while clear inland tonight,
• Mostly cloudy at the shore Wednesday AM and partly cloudy in the afternoon while sunny inland Wednesday, clear in the evening at the shore and mostly cloudy late at night while clear inland Wednesday night,
• AM clouds, partly cloudy Thursday afternoon, clear in the evening, mostly cloudy late Thursday night and Friday AM, partly cloudy in the afternoon, then mostly cloudy Friday night.
• lows near 55 highs near 65.
• Mostly cloudy Saturday, partly cloudy at night and Sunday, mostly cloudy Sunday night through Tuesday AM, then sunny Tuesday 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 and a bit warmer Wednesday, clear at night,
• Mostly sunny and a bit warmer with a slight (20%) chance of showers and thunderstorms Thursday afternoon, mostly clear with a slight (20%) chance of evening showers and thunderstorms, a slight (20%) chance of showers late Thursday night,
• Then just partly cloudy Friday and Friday night.
• free air freezing level 14,000 ft. tonight and Wednesday, 15,000 ft. Wednesday night, snow level above 8,000 ft. Thursday and Thursday night, free air freezing level 14,000 ft. Friday and Friday night.
• lows 40-50 highs 76-82 cooling back to 76 Friday.
• Mostly sunny and a bit cooler Saturday and Sunday, mostly clear Saturday night, partly cloudy Sunday night
• Partly cloudy Monday AM, mostly sunny and a bit warmer in the afternoon, partly cloudy Monday night,
• A mix of clouds and sun in the AM, then mostly sunny and a bit warmer Tuesday afternoon.
• free air freezing level 13,000 ft. Saturday and Saturday night, 12,000 ft. Sunday through Monday, then 13,000 ft. Monday night and Tuesday.
• highs 72-70 warming to 75 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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