Here is my weekly weather quiz question. What is a “Wasatch Wind?” 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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An upper level high pressure ridge (Shaded “Arch” shape in blue arrows) powers up to make a return to the warming trend.  A cold front will move into Oregon Sunday bringing the chance of showers both ahead of it on Saturday and behind on Sunday . Just in case you were wondering when Summer officially ends here is the answer. The Autumnal Equinox occurs at 7:21 PDT on Thursday September 22nd.

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Air Quality Index:

Eugene-Springfield: The Air Quality Index is 41 in the Good category measuring Ozone.

Oakridge: The Air Quality Index is 16 in the Good category measuring Particulate Matter.

Cottage Grove: The Air Quality Index is 43 in the Good category measuring Ozone.

Data courtesy of Lane Regional Air Protection Agency (LRAPA).

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Advisories:

• A Health Advisory remains in effect for ocean water contact at Neskowin Beach located in Tillamook County due to higher than normal levels of fecal bacteria. Contact with the water can result in diarrhea, stomach cramps, skin rashes, upper respiratory infections and other illnesses. Direct contact with the water should be avoided in this area until the advisory is lifted, especially by children and the elderly who may be more vulnerable to waterborne bacteria. Visitors should avoid wading in nearby creeks, pools of water on the beach, or in discolored water, and stay clear of water runoff flowing into the ocean.
• A Health Advisory remains in effect for ocean water contact at Nye Beach located in Lincoln County due to higher than normal levels of fecal bacteria. Contact with the water can result in diarrhea, stomach cramps, skin rashes, upper respiratory infections and other illnesses.Direct contact with the water should be avoided in this area until the advisory is lifted, especially by children and the elderly who may be more vulnerable to waterborne bacteria. Visitors should avoid wading in nearby creeks, pools of water on the beach, or in discolored water, and stay clear of water runoff flowing into the ocean.
• A Blue-Green Algae Health Advisory remains in effect for Agency Lake. Agency Lake is located just north of Upper Klamath Lake near Klamath Falls along Highway 97 in Klamath County. Water monitoring on the lake has confirmed the presence of high levels of blue-green algae and associated toxins that can be harmful to people and animals. Swallowing water while swimming or inhaling water droplets as a result of high-speed water activities, such as water skiing and power boating, should be avoided in areas where blooms are identified. Although toxins are not absorbed through the skin, contact with cells from a bloom can cause skin irritation and a red, puffy rash in individuals with skin sensitivities, or those who develop rashes easily.
• 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:

• Clear tonight,
• Mostly sunny and a bit warmer Friday, mostly clear at night,
• A mix of clouds and sun and a bit cooler with a slight (20%) chance of rain Saturday, mostly cloudy with a slight (20%) chance of showers Saturday night,
• Cloudy with a good (50%) chance of rain and a bit cooler Sunday, then mostly cloudy with a slight (20%) chance of showers at night.
• lows 49-58 highs 86-75.
• A slight (20%) chance of showers Monday AM, a mix of clouds and sun in the afternoon, partly cloudy in the evening, mostly cloudy with a slight (20%) chance of showers late Monday night,
• Partly cloudy with a slight (20%) chance of AM showers, just partly cloudy Tuesday afternoon and at night,
• Mostly sunny Wednesday, then partly cloudy Wednesday night and Thursday.
• highs near 75 lows 53-49. (seasonal averages high 77 low 47)

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College Football Forecast:

Saturday September 17th

Ducks vs. Nebraska at Memorial Stadium Lincoln, Nebraska Kickoff 12:30 PM– Sunny, 68 degrees and warming as the game progresses to 78 toward game’s end, Wind NW 5 mph.

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Beavers vs Idaho State at Reser Stadium Kickoff 2 PM – A mix of clouds and sun with a slight chance of rain, 72 warming to near 76 then cooling toward game’s end, Wind S 5-10 mph.

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Forecast for Roseburg:

• Mostly clear tonight,
• Sunny and a bit warmer Friday, mostly clear in the evening, partly cloudy late Friday night,
• Mostly cloudy but cooler with a slight (20%) chance of showers Saturday afternoon and evening, a slight (20%) chance of rain late Saturday night,
• Mostly cloudy with a (20%) chance of rain and a bit cooler Sunday, a slight (20%) chance of evening showers, then just mostly cloudy late Sunday night.
• lows 50-54 highs 85-90 cooling to 83 Saturday.
• Mostly cloudy in the AM, partly cloudy Monday afternoon and evening, mostly cloudy with a slight (20%) chance of showers late Monday  night,
• Mostly cloudy with a slight (20%) chance of showers Tuesday AM, partly cloudy in the afternoon and Tuesday night,
• Then mostly sunny Wednesday and Thursday, mostly clear Wednesday night.
• highs 80-76 lows 55-49. (seasonal averages high 79 low 51)

 

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Forecast for The South Oregon Coast Including Coos Bay and North Bend:

• Mostly clear this evening, partly cloudy with patchy coastal fog late tonight,
• Mostly cloudy with patchy coastal fog Friday AM and sunny and a bit warmer in the afternoon while sunny and a bit warmer inland, partly cloudy Friday night,
• Mostly cloudy with patchy coastal AM fog and a slight (20%) chance of rain with a slight (20%) chance of coastal showers Saturday afternoon while becoming mostly cloudy with a slight (20%) chance of inland afternoon showers, a slight (20%) chance of coastal rain late Saturday night while a slight (20%) chance of inland evening showers and a slight (20%) chance of inland rain late at night,
• Mostly cloudy with a (40%) chance  of rain Sunday, than just mostly cloudy Sunday night.
• lows 50-52 highs 65-67 cooling back to 65 Saturday.
• Mostly cloudy Monday, partly cloudy in the evening, mostly cloudy with a slight (20%) chance of showers late Monday night and Tuesday AM, partly cloudy in the afternoon through Thursday AM, then sunny Thursday afternoon.
• highs 67-64 lows 52-49. (seasonal averages high 65 low 50)

 

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Forecast for the Cascades in Lane County:

• Clear tonight,
• Sunny and a bit warmer Friday, clear at night,
• Partly cloudy and a bit cooler with a slight (20%) chance of showers Saturday, mostly cloudy with a slight (20%) chance of showers Saturday night,
• Mostly cloudy and a bit cooler with a good (50%) chance of showers Sunday, then mostly cloudy with a slight (20%) chance of  showers late Sunday night.
• free air freezing level 13,000 ft. tonight and Friday, 14,000 ft. Friday night, snow level above 8,000 ft. Saturday through Sunday night.
• lows 45-49 cooling to 47 Sunday night highs 76-66.
• A mix of clouds and sun with a slight (20%) chance of showers Monday AM, clouds and sun in the afternoon, partly cloudy with a slight (20%) chance of evening showers, mostly cloudy with a slight (20%) chance of showers late Monday night,
• Partly cloudy with a slight (20%) chance of AM showers, just partly cloudy Tuesday afternoon and at night,
• Mostly sunny Wednesday, then partly cloudy Wednesday night and Thursday.
• snow level above 8,000 ft. Monday through Tuesday, free air freezing level 9,000 ft. Tuesday night, 8,000 ft. Wednesday, then 9,000 ft. Wednesday night and Thursday.
• highs 65-62 lows 44-37.

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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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