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 inshore 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 31 in the Good category measuring Ozone.

Oakridge: The Air Quality Index is 8 in the Good category measuring Particulate Matter.

Cottage Grove: The Air Quality Index is 32 in the Good category measuring Ozone.

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

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Advisories:

• A FREEZE WARNING IS IN EFFECT FROM 2 AM THROUGH 9 AM WEDNESDAY FOR CENTRAL OREGON, INCLUDING THE CITIES OF BEND, MADRAS, PRINEVILLE, AND REDMOND.
• 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,
• Sunny and just a bit cooler Wednesday, clear Wednesday night,
• Sunny and a bit warmer Thursday, clear Thursday night,
• Mostly sunny and a bit warmer Friday, then mostly clear at night.
• lows 44-49 highs 78-85.
• 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,
• Mostly cloudy with a (40%) chance of showers Sunday AM, a slight (20%) chance of showers Sunday afternoon through Monday evening, then partly cloudy late Monday night and Tuesday.
• highs 80-76 lows 54-50. (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 5-10 mph.

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Forecast for Roseburg:

• Clear tonight,
• Sunny and a bit cooler Wednesday, clear at night,
• Sunny and a bit warmer Thursday and Friday, clear both nights,
• lows 48-53 highs 82-90.
• Mostly sunny but cooler Saturday, partly cloudy with a slight (20%) chance of showers late Saturday night through Sunday night,
• Partly cloudy Monday AM, sunny in the afternoon, then partly cloudy Monday night and Tuesday.
• highs 86-82 cooling to 80 Tuesday lows near 54. (seasonal averages high 80 low 52)

 

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

• Clear this evening and cloudy tonight with patchy coastal fog late while clear inland tonight,
• Mostly cloudy with patchy AM coastal fog while partly cloudy with patchy AM fog inland and sunny and a bit cooler inland Wednesday afternoon, partly cloudy and becoming mostly cloudy with patchy fog late at night at the shore while clear in the evening inland and partly cloudy with patchy fog late Wednesday night inland,
• Partly cloudy with patchy AM coastal fog 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.
• lows 48-50 highs 65-67.
• Sunny Saturday, clear in the evening, becoming mostly cloudy with a slight (20%) chance of showers late Saturday night through Sunday evening, then partly cloudy Sunday night through Tuesday.
• highs 66-68 cooling back to 66 Monday and Tuesday lows near 52. (seasonal averages high 65 low 51)

 

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Forecast for the Cascades in Lane County:

• Clear tonight,
• Mostly sunny and a bit warmer Wednesday, clear at night,
• Sunny Thursday, clear Thursday night,
• Sunny and a bit warmer Friday, then mostly clear Friday night.
• free air freezing level 11,000 ft. late tonight and Wednesday, 12,000 ft. Wednesday night and Thursday, 13,000 ft. Thursday night and Friday, then 14,000 ft. Friday night.
• lows 40-46 highs 66-74.
• Sunny in the AM, partly cloudy and a bit cooler Saturday afternoon, partly cloudy with a slight (20%) chance of showers late at night and Sunday AM, a mix of clouds and sun and a bit warmer with a (30%) chance of showers in the afternoon, mostly cloudy with a (30%) chance of evening showers, partly cloudy with a slight (20%) chance of showers late Sunday night,
• A mix of clouds and sun and a bit warmer with a slight (20%) chance of showers Monday, partly cloudy with a slight (20%) chance of evening showers, then just partly cloudy and a bit cooler late Monday night and Tuesday.
• free air freezing level 14,000 ft. Saturday, snow level above 8,000 ft.  Saturday night through Monday night, then free air freezing level 11,000 ft. 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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