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.  Should be dry but cooler than normal for today and the Labor Day Holiday itself with shower chances returning Monday night. We’re stuck between that low and a high pressure ridge over the Pacific Ocean which means not much change in the current weather pattern. A frontal system will be moving into the Pacific Northwest by Tuesday. The frontal system moves through Oregon Wednesday.

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Air Quality Index:

Eugene-Springfield: The Air Quality Index is 15 in the Good category measuring Particulate Matter.

Oakridge: The Air Quality Index is 6 in the Good category measuring Particulate Matter.

Cottage Grove: The Air Quality Index is 14 in the Good category measuring Particulate Matter.

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

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Advisories:

• A FREEZE WARNING IS IN EFFECT FROM 3 AM UNTIL 8 AM MONDAY FOR THE KLAMATH BASIN NORTHERN AND EASTERN KLAMATH COUNTY, AND WESTERN, CENTRAL AND EASTERN LAKE COUNTY.
• A FROST ADVISORY IS IN EFFECT FROM 3 AM UNTIL 8 AM MONDAY FOR THE KLAMATH BASIN NORTHERN AND EASTERN KLAMATH COUNTY, AND WESTERN, CENTRAL AND EASTERN LAKE COUNTY.
• 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:

• Areas of AM fog, a mix of clouds and sun this afternoon, partly cloudy tonight,
• A mix of clouds and sun and a bit warmer Monday (Labor Day), becoming mostly cloudy with a slight (20%) chance of showers late at night,
• Mostly cloudy with AM rain and a (40%) chance of showers and a bit cooler Tuesday afternoon and in the evening, then a slight (20%) chance of showers late Tuesday night.
• highs 73-75 cooling to 67 Tuesday lows 48-52.
• A mix of clouds and sun with a slight (20%) chance of showers and a bit warmer Wednesday, mostly cloudy with a slight (20%) chance of showers 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, just partly cloudy late Thursday night through Friday night,
• Then mostly sunny and a bit warmer Saturday.
• highs 76-80 lows near 50. (seasonal averages high 80 low 49)

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College Football Forecast:

Saturday September 10th- Ducks vs Virginia at Autzen Stadium Kickoff 7:30 PM – Clear 74 cooling as the game progresses.

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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??

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Forecast for Roseburg:

• Mostly cloudy this AM, sunny and a bit cooler this afternoon, partly cloudy tonight,
• Mostly cloudy in the AM, partly cloudy and a bit warmer Monday afternoon (Labor Day) and evening, mostly cloudy with a slight (20%) chance of showers late Monday night,
• highs 75-77 cooling to 72 Tuesday night lows 48-55.
• Mostly cloudy with a good (50%) chance of rain Tuesday AM, a (30%) chance of showers Tuesday night.
• Mostly cloudy with a slight (20%) chance of showers Wednesday AM, partly cloudy and a bit warmer in the afternoon through Thursday night,
• Mostly sunny Friday, mostly clear at night,
• Then sunny and a bit warmer Saturday.
• highs 80-90 lows 54-52. (seasonal averages high 82 low 53)

 

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

• Partly cloudy this afternoon and tonight,
• Mostly cloudy in the AM, partly cloudy Monday afternoon (Labor Day) and in the evening, then mostly cloudy with a slight (20%) chance of showers late Monday night,
• Cloudy with AM rain, a (40%) chance of inland rain Tuesday afternoon, mostly cloudy with a slight (20%) chance of showers at night.
• highs near 65 lows near 53.
• Mostly cloudy with a slight (20%) chance of showers Wednesday AM, partly cloudy and a bit warmer in the afternoon and evening, mostly cloudy late Wednesday night,
• Partly cloudy Thursday through Friday, mostly clear Friday evening, partly cloudy at night and Saturday AM, then sunny Saturday afternoon.
• highs 66-69 lows 53-50. (seasonal averages high 66 low 52)

 

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Forecast for the Cascades in Lane County:

• Partly cloudy today through Monday (Labor Day) and a bit warmer, more clouds to mostly cloudy with a slight (20%) chance of showers late Monday night,
• Mostly cloudy with AM rain, showers likely (60%) and a bit cooler Tuesday afternoon, mostly cloudy with a (30%) chance of showers Tuesday night.
• free air freezing level 9,000 ft. today and tonight, 10,000 ft. Monday, then snow level above 8,000 ft. Monday night through Tuesday night.
• highs 57-60 cooling back to 57 Tuesday lows 35-40.
• A mix of clouds and sun and a bit cooler with a slight (20%) chance of showers Wednesday, partly cloudy with a slight (20%) chance of showers Wednesday night through Thursday evening, just partly cloudy Thursday night,
• Partly cloudy Friday AM, mostly sunny and a bit warmer in the afternoon and Saturday, partly cloudy Friday night.
• snow level above 8,000 ft. Wednesday through Thursday night, free air freezing level 13,000 ft. Friday, then 14,000 ft. Friday night and Saturday.
• highs 65-72 lows near 40.

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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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