Here is my weekly weather quiz question. What is a “Warm Occlusion?” 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) is taking control of our weather. A weak frontal system  fell apart as it slid into the Pacific Northwest. An upper level low (Shaded “U” shape in blue arrows in first graphic) will move in for the second half of the weekend. Another frontal system will move through the Pacific Northwest Saturday night and Sunday to cool us a bit for end of the weekend.

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Air Quality Index:

Eugene-Springfield: The Air Quality Index is 36 in the Good category measuring Particulate Matter.

Oakridge: The Air Quality Index is 13 in the Good category measuring Particulate Matter.

Cottage Grove: The Air Quality Index is 27 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:

• Mostly sunny and a bit warmer this afternoon and Saturday, clear tonight, partly cloudy Saturday evening, mostly cloudy with a slight (20%) chance of patchy late at night,
• Mostly cloudy with a slight (20%) chance of light rain or drizzle Sunday AM, mostly sunny and cooler in the afternoon, then partly cloudy with patchy fog Sunday night.
• highs 85-75 lows 47-54 cooling to 45 Sunday night.
• Clouds and sun with patchy fog Monday AM, then sunny and a bit warmer Monday afternoon, Tuesday, sunny and a bit cooler Wednesday and Thursday, clear each night.
• highs 83-88 cooling to 82 Wednesday and Thursday lows 45-50. (seasonal averages high 79 low 48)

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College Football Forecast:

Saturday September 10th- Ducks vs Virginia at Autzen Stadium Kickoff 7:30 PM – Partly cloudy near 80 degrees and cooling as the game progresses, increasing clouds toward games end, Wind N 5-15 mph possible gusts to 25 mph.

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Saturday September 10th- Beavers have a Bye week.

Next game– Saturday September 17th- Beavers vs Idaho State at Reser Stadium Kickoff Time?? Way too soon for an accurate forecast that far in the future.

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Forecast for Roseburg:

• Sunny and a bit warmer today and Saturday, clear tonight, clear Saturday evening, partly cloudy with a slight (20%) chance of light rain or drizzle late at night,
• Mostly cloudy with a slight (20%) chance of areas of drizzle Sunday AM, sunny but just a bit cooler in the afternoon, then clear at night.
• highs 88-93 cooling to near 82 Sunday lows 52-56 cooling to 49 Sunday night.
• Sunny and a bit warmer Monday and Tuesday, sunny and a bit cooler Wednesday, clear Monday night and Tuesday night, mostly clear Wednesday night,
• Then mostly sunny and a bit cooler Thursday.
• highs 86-90 cooling back to 86 Wednesday and Thursday lows near 52. (seasonal averages high 81 low 53)

 

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

• Sunny and a bit  a bit cooler today and Saturday, clear tonight, mostly clear in the evening and mostly cloudy late Saturday night,
• Mostly cloudy Sunday AM, mostly sunny and a bit cooler in the afternoon, then mostly clear Sunday night.
• highs 69-66 lows near 50-53 cooling to near 50 Sunday night.
• Mostly sunny and a bit warmer Monday, clear Monday night,
• Sunny and a bit warmer Tuesday, mostly clear at night,
• Mostly sunny and a bit cooler Wednesday, then partly cloudy with patchy fog late at night and Thursday.
• highs 70-73 cooling to 66 Wednesday and Thursday lows near 50. (seasonal averages high 65 low 51)

 

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Forecast for the Cascades in Lane County:

• Sunny and a bit warmer today and Saturday, clear tonight, mostly clear Saturday night,
• Partly cloudy with patchy drizzle Sunday AM, mostly sunny and a bit cooler in the afternoon, then mostly clear Sunday night.
• free air freezing level 14,000 ft. today, 15,000 ft. tonight, 14,000 ft. Saturday and Saturday night, 13,000 ft. Sunday, then 11,000 ft. Sunday night.
• highs 76-63 lows 45-38.
• Then sunny Monday and Tuesday, sunny and a bit cooler Wednesday and Thursday, clear each night.
• free air freezing level 10,000 ft. Monday and Monday night, 11,000 ft. Tuesday, then 12,000 ft. Tuesday through Thursday.
• highs 64-72 lows 39-44.

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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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