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) weakens its hold on us for short-lived onshore airflow. A cold front will move into Oregon between Saturday and 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 23 in the Good category measuring Particulate Matter.

Oakridge: The Air Quality Index is 9 in the Good category measuring Particulate Matter.

Cottage Grove: The Air Quality Index is 17 in the Good category measuring Particulate Matter.

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:

• Sunny and just a bit cooler today, clear tonight,
• Sunny and a bit warmer Thursday, clear Thursday night,
• Mostly sunny and a bit warmer Friday, then mostly clear at night.
• highs 78-85 lows 47-50.
• Mostly sunny in the AM, partly to mostly cloudy and a bit cooler Saturday afternoon, mostly cloudy with a (40%) chance of showers late Saturday night and Sunday, a slight (20%) chance of showers Sunday night,
• Partly cloudy with a slight (20%) chance of showers Monday, just partly cloudy Monday night,
• Clouds and sun Tuesday AM, then mostly sunny .in the afternoon.
• highs 80-76 lows 54-52. (seasonal averages high 78 low 47)

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College Football Forecast:

Saturday September 17th

Ducks vs. Nebraska at Memorial Stadium Lincoln, Nebraska Kickoff 12:30 PM– Mostly sunny 68 degrees and warming as the game progresses to 76 toward game’s end, Wind N 5-10 mph.

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Beavers vs Idaho State at Reser Stadium Kickoff 2 PM – Partly cloudy 77 warming to 80 then cooling toward game’s end, Wind W-SW 5-10 mph.

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Forecast for Roseburg:

• Sunny and a bit cooler today, clear tonight,
• Sunny and a bit warmer Thursday and Friday, clear both nights,
• highs 82-90 lows 47-53.
• Mostly sunny but cooler Saturday, mostly clear in the evening, mostly cloudy with a slight (20%) chance of showers late Saturday night through Sunday, partly cloudy late at night,
• Partly cloudy Monday through Tuesday AM, then sunny in the afternoon.
• highs 85-78 lows near 54. (seasonal averages high 79 low 52)

 

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

• Mostly cloudy with patchy AM coastal fog while partly cloudy with patchy AM fog inland and sunny and a bit cooler inland this afternoon, partly cloudy and becoming mostly cloudy with patchy fog late tonight at the shore while clear in the evening inland and partly cloudy with patchy fog late tonight inland,
• Partly cloudy with patchy AM coastal fog and partly cloudy Thursday afternoon while partly cloudy with patchy inland fog and becoming sunny and a bit warmer in the afternoon inland, clear in the evening, partly cloudy with patchy coastal fog late Thursday night,
• Partly cloudy Friday AM, sunny and a bit warmer in the afternoon, then clear Friday night.
• highs 65-67 lows 46-50.
• Patchy AM fog, sunny Saturday afternoon, mostly clear in the evening, becoming mostly cloudy with a slight (20%) chance of showers late Saturday night through Sunday evening, then partly cloudy late Sunday night through Tuesday.
• highs near 66 lows near 52. (seasonal averages high 65 low 50)

 

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Forecast for the Cascades in Lane County:

• Sunny and a bit warmer today, clear tonight,
• Sunny Thursday, clear Thursday night,
• Sunny and a bit warmer Friday, then mostly clear Friday night.
• free air freezing level 11,000 ft. today, 12,000 ft. tonight and Thursday, 13,000 ft. Thursday night and Friday, then 14,000 ft. Friday night.
• highs 66-74 lows 40-46.
• Mostly sunny and a bit cooler Saturday, partly cloudy with a slight (20%) chance of showers late at night,
• A mix of clouds and sun and a bit warmer with a good (50%) chance of rain Sunday AM, mostly cloudy with a good (50%) chance of showers in the afternoon and evening, partly cloudy with a slight (20%) chance of Sunday night,
• A mix of clouds and sun and a bit warmer with a slight (20%) chance of showers Monday AM, partly cloudy with a slight (20%) chance of showers late Monday night and Tuesday AM, then just partly cloudy Tuesday afternoon.
• free air freezing level 14,000 ft. Saturday, then snow level above 8,000 ft.  Saturday night through Tuesday.
• highs 72-67 warming to 70 Monday cooling to 67 Tuesday lows 46-42.

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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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