Here is my weekly weather quiz question for the last time. What is “Upwelling?” Here is the correct answer. Upwelling in ocean dynamics is the upward motion of sub-surface water toward the surface of the ocean. This is often a source of cold, nutrient-rich water. Strong upwelling occurs along the equator where easterly winds are present. Upwelling also can occur along coastlines, and is important to fisheries and birds in California and Peru. I’ll have a new weekly weather quiz question for you starting Monday. 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 low (Shaded “U” shape in blue arrows) is still in control of our weather. That means cooler than normal temperatures and possible showers through tonight. Should be dry but cooler than normal for Sunday and the Labor Day Holiday itself with shower chances returning Monday night. A frontal system is shown well off the coast on Monday. That frontal system can be seen moving through the Pacific Northwest by next Wednesday. The UO college football season gets under way this afternoon with the Ducks at home.

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Air Quality Index:

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

Oakridge: The Air Quality Index is 10 in the Good category measuring Particulate Matter.

Cottage Grove: The Air Quality Index is 19 in the Good category measuring Particulate Matter.

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

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Advisories:

• A health advisory is 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 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 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:

• A mix of clouds and sun and a bit warmer with a slight (20%) chance of showers and thunderstorms this afternoon, partly cloudy with a slight (20%) chance of showers and thunderstorms this evening, just mostly cloudy with areas of fog late tonight,
• Areas of AM fog, a mix of clouds and sun Sunday afternoon, partly cloudy in the evening, mostly cloudy late Sunday night,
• AM clouds, a mix of clouds and sun Monday afternoon (Labor Day), then becoming mostly cloudy with a (30%) chance of showers late at night.
• highs near 72 lows near 46.
• Mostly cloudy with a (40%) chance of showers Tuesday and Tuesday night,
• A slight (20%) chance of showers and a bit warmer Wednesday and Wednesday night,
• A mix of clouds and sun and a bit warmer with a slight (20%) chance of showers Thursday, partly cloudy with a slight (20%) chance of showers in the evening, then just partly cloudy late Thursday night and Friday.
• highs 73-78 lows 52-49. (seasonal averages high 80 low 49)

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Your College Football Forecast:

Ducks vs UC Davis at Autzen Stadium – Today- Kickoff 2 PM PDT: A mix of clouds and sun with just a slight (20%) chance of showers and thunderstorms 70 degrees warming to near 72 degrees then slow cooling as the game ends, Wind NW 5-15 mph.

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Forecast for Roseburg:

• Mostly cloudy with a slight (20%) chance of drizzle this AM,  just partly cloudy this afternoon, a slight (20%) chance of evening showers, just mostly cloudy late tonight and Sunday AM, sunny and a bit cooler in the afternoon, partly cloudy Sunday night,
• Mostly cloudy and a bit warmer Monday (Labor Day), partly cloudy in the evening, then mostly cloudy with a slight (20%) chance of showers late Monday night.
• highs 77-75 warming to 77 Monday night lows 50-52.
• Mostly cloudy with a slight (20%) chance of showers Tuesday through Wednesday AM, then just partly cloudy and a bit warmer Wednesday afternoon through Friday.
• highs 76-82 lows 55-52. (seasonal averages high 82 low 54)

 

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

• A slight (20%) chance of AM drizzle inland, otherwise mostly cloudy and a bit cooler today, partly cloudy this evening, mostly cloudy late tonight and Sunday AM, sunny in the afternoon, partly cloudy Sunday night,
• Mostly cloudy Monday (Labor Day), then mostly cloudy with a slight (20%) chance of showers late Monday night.
• highs near 64 lows 50-53.
• Mostly cloudy with a slight (20%) chance of showers Tuesday through Wednesday AM, partly cloudy in the afternoon and evening, mostly cloudy late Wednesday night,
• Then partly cloudy Thursday through Friday.
• highs near 66 lows near 52. (seasonal averages high 66 low 52)

 

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Forecast for the Cascades in Lane County:

• Mostly cloudy this AM, partly cloudy and a bit warmer with a slight (20%) chance of showers this afternoon and evening, partly cloudy late tonight,
• A mix of clouds and sun Sunday, partly cloudy at night,
• A mix of clouds and sun and a bit warmer Monday (Labor Day), partly cloudy with a slight (20%) chance of showers late Monday night.
• snow level 7,500 ft. today, 8,000 ft. tonight, free air freezing level 9,000 ft. Sunday through Monday, then snow level above 8,000 ft. Monday night.
• highs 57-63 lows near 36.
• A mix of clouds and sun with a slight (20%) chance of showers Tuesday and Wednesday, mostly cloudy with a slight (20%) chance of showers Tuesday night, partly cloudy with a slight (20%) chance of showers Wednesday night through Thursday evening, just partly cloudy Thursday night,
• Then mostly sunny Friday.
• snow level above 8,000 ft. Tuesday through Thursday night, then free air freezing level 12,000 ft. Friday.
• highs 62-67 lows 40-38.

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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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