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Tim Chuey Weather

Check out my latest Eugene Daily News Weather Or Not column Very Hot + Very Dry = Oregon Wildfires.

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Please read my Feature article Put Them Up, Take Them Down, Repeat, No More?

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And my feature article about Contractors Electric called Is The Ground Wire The White One Or The Black One?

 

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Here is my weekly weather quiz question. What is “Upwelling?” 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) has cooled us down with increasing onshore airflow. It will continue to slide to the south then eastward through the Pacific Northwest. The cool-down should last most of the week but the computer models are conflicted over the chances of precipitation. A frontal system is on its way bringing the slight chance of showers by morning. Another frontal system can be seen approaching the Pacific Northwest next between next Tuesday and Wednesday. As much as we need some rain I’m sure most of us are hoping that it is dry and warm for the long Labor day weekend September 3rd through 5th, but it is too soon to make that prediction final. So far it does look like sunshine and warming temperatures for the holiday weekend.

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Air Quality Index:

Eugene-Springfield: The Air Quality Index is 25 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 15 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 the Ross Island Lagoon and the mouth of the lagoon as it connects to the Holgate Channel. Ross Island Lagoon is located about one river mile south of downtown Portland in Multnomah County. The advisory is being issued due to visual confirmation of a blue-green algae bloom in the lagoon. Oregon Public Health officials advise people to avoid swallowing or inhaling water droplets as a result of swimming or high-speed water activities, such as water skiing and power boating in areas where blooms are identified.
  • 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:

  • Mostly cloudy and a bit cooler today with a good (50%) chance of showers this afternoon (under 0.10 in. of rain possible), a slight (20%) chance of evening showers (under 0.10 in. of rain possible), just mostly cloudy late tonight,
  • Mostly cloudy and a bit cooler with a slight (20%) chance of rainThursday afternoon (under 0.10 in. of rain possible), evening rain likely (60%), a good (50%) chance of showers late Thursday night (under 0.10 in. of rain possible),
  • Mostly cloudy and a bit cooler with a good (50%) chance of AM showers, a bit cooler with a good (50%) chance of showers and a slight (20%) chance of thunderstorms Friday afternoon, mostly cloudy with a slight (20%) chance of evening showers, then just mostly cloudy late Friday night.
  • highs 73-69 lows 53-48.
  • A mix of clouds and sun and a bit warmer Saturday, partly cloudy and a bit warmer Saturday night through Monday night (Labor Day),
  • Then a mix of clouds and sun and a bit warmer Tuesday.
  • highs 73-79 lows 49-52. (seasonal averages high 81 low 50)

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Your College Football Forecast:

Ducks vs UC Davis at Autzen Stadium – Saturday September 3rd- Kickoff 2 PM PDT: A mix of clouds and sun 75 degrees and cooling as the game progresses, Wind N 5-10 mph.

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Beavers vs Minnesota at TCF Bank Stadium Minneapolis, MN – Thursday September 1st – Kickoff (8 PM CDT) 6 PM PDT: Mostly sunny 72 degrees and cooling as the game progresses, Wind ESE 5 mph.

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Forecast for Roseburg:

  • Mostly cloudy with a slight (20%) chance of showers and a bit cooler today (under 0.10 in. of rain possible),  a slight (20%) chance of showers this evening (under 0.10 in. of rain possible), partly cloudy with a slight (20%) chance of showers late tonight,
  • Partly cloudy Thursday AM, mostly cloudy and a bit cooler in the afternoon, a (30%) chance of showers Thursday night (under 0.10 in. of rain possible),
  • Mostly cloudy and a bit cooler with a sight (20%) of showers Friday and in the evening, then just partly cloudy late Friday night.
  • highs 78-74 lows 54-52.
  • Partly cloudy and a bit warmer Saturday through Sunday, mostly clear in the evening, partly cloudy and a bit warmer Sunday night and Monday (Labor Day) through Tuesday (a bit cooler Tuesday).
  • highs 77-84 cooling to near 80 Tuesday lows 50-54. (seasonal averages high 83 low 54)

 

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

  • Mostly cloudy and a bit cooler with a (40%) chance of showers today (under 0.10 in. of rain possible), a slight (20%) chance of evening inland showers and just mostly cloudy late while a slight (20%) chance of coastal showers tonight (under 0.10 in. of rain possible),
  • Partly cloudy Thursday AM, mostly cloudy with a slight (20%) chance of coastal showers Thursday afternoon,  mostly cloudy with a (30%) chance of showers Thursday night (under 0.10 in. of rain possible),
  • Mostly cloudy with a (30%) chance of showers Friday, then just mostly cloudy Friday night.
  • highs 65-63 lows near 53.
  • Mostly cloudy Saturday, partly cloudy Saturday night through Monday (Labor Day), partly cloudy in the evening, mostly cloudy with a slight (20%) chance of showers late Monday night,
  • Mostly cloudy with a slight (20%) chance of showers Tuesday AM, then just mostly cloudy in the afternoon.
  • highs 65-68 lows 50-54. (seasonal averages high 66 low 52)

 

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Forecast for the Cascades in Lane County:

  • Partly cloudy and a bit cooler with a slight (20%) chance of showers this afternoon, a good (50%) chance of evening showers, a slight (20%) chance of showers late tonight (under 0.10 in. of rain possible),
  • A mix of clouds and sun and a bit cooler in the afternoon, mostly cloudy with a good (50%) chance of evening, a good (50%) chance of showers late Thursday night,
  • Mostly cloudy and a bit cooler with a (40%) chance of AM rain and snow showers, a (40%) chance of showers and a slight (20%) chance of thunderstorms Friday afternoon, a slight (20%) chance of evening showers, then just partly cloudy late Friday night.
  • snow level above 8,000 ft. today and tonight, free air freezing level 12,000 ft. Thursday, snow level above 8,000 ft. falling to 7,500 ft. late Thursday night, 6,500 ft. Friday, then 7,000 ft. Friday night.
  • highs 66-54 lows 42-35.
  • Partly cloudy and a bit warmer Saturday through Monday (Labor Day) and continuing through Tuesday.
  • free air freezing level 9,000 ft. Saturday through Sunday, 11,000 ft. Sunday night, 10,000 ft. Monday, 12,000 ft. Monday night, then 11,000 ft. Tuesday.
  • highs 59-69 lows 35-40.

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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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