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

• Clear tonight, sunny Tuesday and Wednesday with clear nights.
• Partly cloudy with patchy fog Thursday AM, mostly sunny in the afternoon, then mostly clear late Thursday night.
• lows 53-57 highs 92-88.
• Mostly sunny Friday night, partly cloudy Friday night through Saturday evening, mostly cloudy late at night.
• Mostly cloudy with a slight (20%) chance of showers Sunday afternoon through Monday.
• highs 88-76 lows 54-57. (seasonal averages high 79 low 49)

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

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

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Forecast for the Cascades of Lane County:

• Clear tonight, sunny Tuesday and Wednesday, mostly clear at night.
• free air freezing level 14,000 ft. 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.
• Mostly sunny Thursday, then Thursday night.
• lows 46-53 cooling to near 50 Thursday night highs 83-80
• Mostly sunny Friday AM, partly cloudy in the afternoon and Friday night,  mostly sunny Saturday AM, partly cloudy in the afternoon and Saturday night.
• Then a mix of clouds and sun with a slight (20%) chance of showers Sunday afternoon through Monday and mostly cloudy with a slight (20%) chance of showers Sunday night.
• free air freezing level 14,000 ft. Friday and Friday night, 14,000 ft. rising to 15,000 ft. Saturday through Sunday AM, snow level above 8,000 ft. Sunday afternoon through Monday.
• highs 79-82 cooling to 67 Monday lows 50-46.

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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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