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  slides into the northwest portion of the area with skies clearing even more behind it and temperatures will slowly rise keeping us dry for a while. 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 be approaching the Pacific Northwest Saturday to cool us a bit for end of the weekend.

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Air Quality Index:

Eugene-Springfield: The Air Quality Index is 20 in the Good category measuring Particulate Matter.

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

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

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

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Advisories:

• A FIRE WEATHER WATCH IS IN EFFECT FROM THIS EVENING THROUGH FRIDAY MORNING FOR FAR SOUTHERN COOS COUNTY, CURRY COUNTY, AND FAR WESTERN JOSEPHINE COUNTY INCLUDING THE WESTERN ROGUE RIVER AND THE SISKIYOU NATIONAL FOREST.
• 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, mostly clear with patchy fog late tonight and Friday AM, sunny and a bit warmer Friday afternoon, clear Friday night,
• Mostly sunny and a bit warmer Saturday, partly cloudy in the evening, then mostly cloudy late Saturday night.
• highs 80-86 lows 43-52.
• Mostly cloudy Sunday AM, mostly sunny and a bit cooler in the afternoon, part;y cloudy with patchy fog Sunday night,
• Clouds and sun Monday AM, then sunny and a bit warmer Monday, Tuesday and a bit cooler Wednesday, clear each night.
• highs 75-86 cooling to 82 Wednesday lows 47-49. (seasonal averages high 79 low 49)

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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, Wind NW 5-10 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, Friday and Saturday, clear tonight and Friday night, then clear Saturday evening, partly cloudy with a slight (20%) chance of rain and drizzle late at night.
• highs 83-90 lows 50-56.
• Mostly cloudy with a slight (20%) chance of rain and drizzle Sunday AM, sunny but just a bit cooler in the afternoon, mostly clear at night,
• Sunny and a bit warmer Monday, clear Monday night,
• Then sunny and a bit warmer Tuesday and a bit cooler Wednesday, clear Tuesday night.
• highs 79-90 cooling to 86 Wednesday lows 50-54. (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 warmer this afternoon, a bit cooler Friday and Saturday, clear tonight and Friday night, clear in the evening and partly cloudy with a slight (20%) chance of rain and drizzle late Saturday night.
• highs 70-68 lows near 50-53.
• Mostly cloudy Sunday AM, mostly sunny and a bit cooler in the afternoon, clear at night,
• Mostly sunny and a bit warmer Monday, mostly clear Monday night,
• Then mostly sunny and a bit warmer Tuesday and a bit cooler Wednesday, mostly clear at night.
• highs 65-73 cooling to 66 Wednesday lows 52-58 cooling back to 52 Tuesday night. (seasonal averages high 65 low 51)

 

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Forecast for the Cascades in Lane County:

• Sunny and a bit warmer today, mostly clear tonight,
• Sunny and a bit warmer Friday and Saturday, clear Friday night, mostly clear Saturday night.
• free air freezing level 14,000 ft. today through Saturday night.
• highs 69-76 lows 40-45.
• Partly cloudy Sunday AM, mostly sunny and a bit cooler in the afternoon, mostly clear Sunday night,
• Then sunny Monday, Tuesday and a bit cooler Wednesday, clear each night.
• free air freezing level 13,000 ft. Sunday, 12,000 ft. Sunday night, 11,000 ft. Monday, 12,000 ft. Monday night, 13,000 ft. Tuesday, then 14,000 ft. Tuesday night and Wednesday.
• highs 62-72 cooling to 67 Wednesday lows 38-44.

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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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