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Check out my latest Eugene Daily News Weather Or Not Column It’ll Never Get Off The Ground!

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It’s Monday and that means it’s time for my new weekly weather quiz question. What is an “Urban Heat Island?”  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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Advisories:

A Blue-Green Algae warning continues for Dexter Reservoir, Dorena Reservoir, and Fern Ridge Reservoir, and farther away at Devils Lake.  Water monitoring has confirmed the presence of blue-green algae that can produce toxins, state public health officials said. The algae levels are likely associated with dangerous cyanotoxin concentrations in the water that can be harmful to humans and animals. Swallowing or inhaling water droplets, as well as skin contact with water, should be avoided according to the authorities.

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An upper level high pressure ridge shaded “Arch” shape has taken over our weather for a while and stay put through the end of the week then another upper level low pressure trough will move toward the Oregon coast to replace it.  A frontal system will edge its way into Oregon by early next week and that should start to cool us back down And possibly produce some precipitation. Autumn begins at 1:44 PM Friday September 22nd, so Summer is nearly over.

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The Grass Pollen Count is listed as Low at 2 and Tree pollen is Absent at 0 as of 8/31/13 according to Oregon Allergy Associates. The Season is over.

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

• Partly cloudy with patchy AM fog, sunny this afternoon through Wednesday with clear nights.
• highs 85-92 cooling to near 90 Wednesday lows 53-57.
• Partly cloudy with patchy fog Thursday AM, mostly sunny Thursday and Friday evening, mostly cloudy late Thursday night, partly cloudy Friday night through Saturday evening.
• Then mostly cloudy with a slight (20%) chance of showers and thunderstorms Sunday afternoon.
• highs 88-78 lows 56-53. (seasonal averages high 79 low 49)

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

• Partly cloudy with patchy AM coastal fog, sunny this afternoon, mostly clear tonight.
• Sunny Tuesday, mostly clear in the evening, partly cloudy with patchy coastal fog late Tuesday night and Wednesday AM.
• Mostly sunny Wednesday afternoon, mostly clear in the evening, mostly cloudy late Wednesday night.
• highs 72-75 cooling to near 70 Wednesday lows 59-56.
• Mostly cloudy Thursday AM, sunny Thursday afternoon, mostly clear in the evening, mostly cloudy with patchy fog late Thursday night and Friday AM, partly cloudy Friday afternoon.
• Then mostly cloudy Friday night and Saturday, partly cloudy in the evening, mostly cloudy at night
• Mostly cloudy with a slight (20%) chance of showers Sunday afternoon.
• highs 72-68 lows near 58. (seasonal averages high 66 low 51)

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Forecast for the Cascades of Lane County:

• Sunny today through Wednesday, mostly clear at night.
• free air freezing level 14,000 ft. today and tonight, 14,000 ft. rising to 16,000 ft. Tuesday, 16,000 ft. falling to 14,000 ft. Tuesday night, then 14,000 ft. Wednesday and Wednesday night.
• highs 75-82 lows 48-57 cooling to 52 Wednesday night.
• Mostly sunny Thursday AM, partly cloudy in the afternoon and Thursday night.
• Mostly sunny Friday AM, partly cloudy in the afternoon and Friday night,  mostly sunny Saturday AM, partly cloudy Saturday afternoon, partly cloudy with a slight (20%) chance of showers and thunderstorms late Saturday night.
• Then a mix of clouds and sun with a slight (20%) chance of showers and thunderstorms Sunday.
• free air freezing level 14,000 ft. rising to 15,000 ft. Thursday, 15,000 ft. falling to 14,000 ft. Thursday night through Saturday evening, snow level above 8,000 ft. late Saturday night and Sunday.
• highs 80-67 lows 52-46.

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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 Eugene Daily News.com.

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