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Check out my latest Eugene Daily News Weather Or Not Column Whose Fault Is It? Could It Be El Nino, La Nina, Or Even La Nada?

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Here is my weekly weather quiz question. What is an “Alberta Clipper?” 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 FREEZE WATCH IS IN EFFECT FROM LATE TONIGHT THROUGH THURSDAY MORNING FOR THE KLAMATH BASIN, NORTHERN AND EASTERN KLAMATH COUNTY, AND FOR WESTERN, CENTRAL, AND EASTERN LAKE COUNTY.

A Blue-Green Algae warning continues for Dexter Reservoir, Dorena Reservoir, and Fern Ridge Reservoir, Walterville Pond, 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 trough of low pressure (Shaded “U” shape offshore) is moving through Oregon to be replaced by a high pressure ridge (Shaded “Arch” shape) that will give us more sunshine, for a while. A cold front will be approaching the Oregon coast by the end of the week and another low pressure trough will be approaching. Autumn begins at 1:44 PM Sunday September 22nd along with the Full Blue Moon (the full moon closest to the Autumnal Equinox), so Summer is nearly over.

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Your Saturday College Football Forecasts:

The Ducks do not play this week.

The Beavers vs San Diego State at Qualcomm Stadium: Kickoff 4:30 PM- Sunny, temperature near 73 cooling a bit as the game continues.

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

• Partly cloudy this AM, a mix of clouds and sun this afternoon, mostly clear with areas of fog late tonight.
• Partly cloudy with patchy AM fog, mostly sunny Thursday afternoon, partly cloudy with patchy fog late Thursday night.
•  Partly cloudy Friday AM, becoming mostly cloudy with a slight (20%) chance of rain in the afternoon, evening rain, then showers likely (60%) late Friday night.
• highs 73-79 cooling to 75 Friday lows 42-55.
• Mostly cloudy with showers likely (70%) Saturday and in the evening, mostly cloudy with a slight (20%) chance of showers late Saturday night.
• Mostly cloudy with a (30%) chance of rain Sunday, good (50%) chance of rain Sunday night and Monday, a (40%) chance of rain Monday night.
• Then mostly cloudy with a good (50%) chance of showers Tuesday.
• highs 63-70 cooling to 66 Tuesday lows near 53. (seasonal averages high 77 low 47)

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

• Partly cloudy this AM, sunny this afternoon, mostly clear tonight.
• Patchy AM fog, sunny Thursday, mostly clear in the evening, mostly cloudy Thursday night with a slight (20%) chance of coastal rain late,
• Mostly cloudy with coastal rain likely (60%) Friday AM while a (30%) chance of inland AM showers, rain and cooler Friday afternoon and evening, mostly cloudy with showers late Friday night.
• highs 68-70 cooling to 67 Friday lows 52-57.
• Mostly cloudy with showers Saturday, showers likely (60%) chance in the evening, a slight (20%) chance of showers late Saturday night.
• Mostly cloudy with a slight (20%) chance of AM showers Sunday, a (40%) chance of rain Sunday afternoon, cloudy with rain likely (70%) Sunday night.
• Cloudy with a good (50%) chance of rain Monday, mostly cloudy with a (40%) chance of rain at night.
• Then mostly cloudy with a (40%) chance of showers Tuesday.
• highs 64-66 lows near 55. (seasonal averages high 65 low 50)

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Forecast for the Cascades of Lane County:

• A mix of clouds and sun with as slight (20%) chance of showers this AM, mostly sunny and warmer this afternoon, clear tonight.
• Mostly sunny and warmer Thursday, partly cloudy Thursday night.
• Partly cloudy with a slight (20%) chance of showers Friday afternoon, rain likely (60%) in the evening, then showers late Friday night.
• snow level 6,500 ft. this AM, free air freezing level 10,000 ft. rising to 12,000 ft. tonight, 13,000 ft. Thursday, 13,000 ft. falling to 12,000 ft. Thursday night, snow level 8,000 ft. Friday, then 7,500 ft. Friday night.
• highs 57-69 cooling to 65 Friday lows 38-42 cooling to 40 Friday night.
• Mostly cloudy with showers Saturday and in the evening, a good (50%) chance of showers late Saturday night.
• Mostly cloudy with a (40%) chance of rain Sunday, a good (50%) chance of rain Sunday night,
• Cloudy with a good (50%) chance of rain Monday, a (40%) chance of rain at night.
• Then mostly cloudy with a (40%) chance of showers Tuesday.
• snow level 7,000 ft. Saturday and Saturday night, 7,500 ft. Sunday, 7,000 ft. Sunday night, then 8,000 ft. Monday through Tuesday.
• highs 47-54 cooling to near 50 Tuesday lows 35-40.

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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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