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Check out my latest Eugene Daily News Weather Or Not Column It’s That Time Again And I Have Too Many Digital Clocks To Change.

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Here is my new weekly weather quiz question. What determines if a tropical storm becomes a hurricane? 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 NEW Blue-Green Algae warning has been issued for Tenmile Lakes in Coos County. A Blue-Green Algae warning has been lifted for Walterville Pond, Dorena Reservoir and Dexter Reservoir,  but continues for Fern Ridge Reservoir, Lost Creek Lake,  and  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 trough of low pressure (Shaded “U” shape on Jet Stream graphic) will move through Oregon followed closely by an upper level high (Shaded “Arch” shape). A frontal system will approach the Oregon coast Saturday, but doesn’t look like it will have too much impact on our weather except for a chance of showers and cooler temperatures.

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Your Saturday College Football Forecasts:

The Ducks vs Washington at Husky Stadium Seattle, Washington: Kickoff 1 PM- Mostly cloudy with a (30%) chance of showers (mainly early AM) a mix of clouds and sun in the afternoon, temperature near 50 warming to near 57, then cooling down a bit by the end of the game, Wind: N 5-10 mph.

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The Beavers vs Washington State at Martin Stadium Pullman, Washington: Kickoff 7:30 PM- Mostly cloudy with showers likely early in the game then tapering off, temperature near 50 cooling into the 40s as the game progresses, Wind: NNW 8 mph. (Bundle up if you are going to the game. You know how quickly it cools down in the Palouse this time of the year.)

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

• Mostly cloudy with a good (50%) chance of showers tonight (under 0.10 in. of rain possible) and Saturday (0.10 in. of rain possible), a slight (20%) chance of evening showers, partly cloudy with patchy fog late Saturday night.
• AM fog with a mix of clouds and sun, mostly sunny Sunday afternoon, clear in the evening, partly cloudy with patchy fog late Sunday night,
• AM clouds and sun, sunny Monday afternoon (Columbus Day), then mostly clear at night.
• lows 42-37 warming to near 40 Monday night highs 57-64.
• Mostly sunny Tuesday through Friday with mostly clear nights.
• highs 69-66 lows near 43. (seasonal averages high 67 low 42)

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

• Partly cloudy this evening, mostly cloudy with areas of fog late tonight and Saturday AM, cloudy with a (40%) chance of showers Saturday, partly cloudy in the evening, mostly cloudy with areas of patchy fog late Saturday night,
• Mostly cloudy with patchy AM fog, sunny Sunday afternoon, mostly clear Sunday night,
• Mostly sunny Monday (Columbus Day), then mostly clear at night.
• lows 47-44 warming to 46 Monday night highs 59-66.
• Mostly sunny Tuesday, clear at night,
• Mostly sunny Wednesday and Thursday, mostly clear Wednesday night, partly cloudy Thursday night,
• Partly cloudy Friday.
• highs 66-63 lows 46-48. (seasonal averages high 62 low 46)

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Forecast for the Cascades of Lane County: