Here is my new weekly weather quiz question. What are “Stoplogs?” 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. The answer has to be a comment to win. An email answer will not count. Good luck.

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A weak cold front slid through the Pacific Northwest, but the bulk of the scant precipitation stayed well to the North of the Eugene-Springfield area.  Upper level Low Pressure (Shaded “U” shape with blue arrows) is moving away from us and High Pressure (“Arch” shape in blue arrows) will take over for a short while. An upper level low (Shaded “U” shape with blue arrows) will move up to the coast by the end of the week returning the chance of showers for the weekend.

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Air Quality Index:

Eugene-Springfield: The Air Quality Index is 19 in the good category measuring Ozone.

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

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

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

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Advisories:

• A Blue-Green Algae health advisory is in effect for Howard Bay (sometimes called Howards Bay or Howard’s Bay) in Upper Klamath Lake. It now includes all of Agency and Upper Klamath Lakes. 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.
• A Blue-Green Algae health advisory is in effect for the Metolius Arm of Lake Billy Chinook from Perry South Campground to and including the area around Three Rivers Marina, located about 12 miles Southwest of Madras in Jefferson County. It now includes the Crooked River Arms. 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:

• Partly cloudy with a slight (20%) chance of evening showers (under 0.10 in. of rain possible), just partly cloudy late tonight and Wednesday AM, mostly sunny and a bit warmer in the afternoon and Thursday, mostly clear both nights,
• Then partly cloudy and a bit cooler Friday and Friday night.
• lows 50-52 highs 82-86 cooling back to 82 Friday.
• Partly cloudy and a bit cooler Saturday and in the evening, mostly cloudy with a (30%) chance of showers Sunday night and Monday AM, a mix of clouds and sun with a slight (20%) chance of showers in the afternoon, partly cloudy with a slight (20%) chance of evening showers, cloudy with a slight (20%) chance of showers late Monday night and Tuesday AM, then a mix of clouds and sun with a slight (20%) chance of showers Tuesday afternoon.
• highs 77-75 warming back to 77 Tuesday lows 54-50. (seasonal averages high 82 low 51)

 

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Eugene-Springfield Pollen Count:

Grass………. Moderate (16)

Trees………. Low (2)

Last Counted: 7/12/16

Data Courtesy of Oregon Allergy Associates.

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Forecast for Roseburg:

• Mostly cloudy tonight and Wednesday AM, sunny and a bit warmer in the afternoon and Thursday, mostly clear both nights,
• Mostly sunny and a bit cooler Friday, then mostly clear at night.
• lows near 54 highs 84-88 cooling to 82 Friday.
• AM clouds, sunny Saturday afternoon, partly cloudy in the evening, mostly cloudy with a slight (20%) chance of showers late Saturday night,
• Mostly cloudy and a bit cooler with a (30%) chance of showers Sunday through Monday night,
• Mostly cloudy with a slight (20%) chance of showers Tuesday AM, then just partly cloudy and a bit warmer in the afternoon.
• highs 82-76 warming to near 80 Tuesday lows 57-54. (seasonal averages high 84 low 56)

 

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

• Mostly cloudy tonight and Wednesday AM, sunny in the afternoon, clear in the evening, partly cloudy Wednesday night and Thursday AM, sunny in the afternoon and Friday, mostly clear Thursday evening and partly cloudy at night, then mostly cloudy Friday night.
• lows near 54 highs 66-64 warming back to 66 Thursday .
• Mostly cloudy Saturday, mostly cloudy with a slight (20%) chance of showers Saturday night and Sunday, partly cloudy with a (30%) chance of evening showers, mostly cloudy with a good (50%) chance of showers late Sunday night,
• Mostly cloudy with a (40%) chance of showers Monday and Monday night,
• Mostly cloudy with a slight (20%) chance of showers Tuesday AM, then sunny Tuesday afternoon.
• highs near near 64 lows 56-53. (seasonal averages high 64 low 53)

 

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Forecast for the Cascades in Lane County:

• Partly cloudy tonight and Wednesday AM, mostly sunny and a bit warmer Wednesday afternoon and Thursday, mostly clear both nights,
• Partly cloudy Friday AM, sunny and a bit cooler Friday afternoon, then just partly cloudy at night.
• free air freezing level 12,000 ft. tonight and Wednesday, 13,000 ft. rising to 14,000 ft. late Wednesday night, 14,000 ft. Thursday, 14,000 ft. falling to 13,000 ft. Thursday night, 13,000 ft. Friday, then 13,000 ft. falling to 12,000 ft. Friday night.
• lows 42-44 cooling to 40 Friday night highs 72-75 cooling to 69 Friday.
• Partly cloudy Saturday AM, mostly sunny and a bit cooler in the afternoon, partly cloudy with a slight (20%) chance of showers late Saturday night and Sunday AM, a bit cooler with a (30%) chance of showers in the afternoon, mostly cloudy with a slight (20%) chance of showers late Sunday night,
• A mix of clouds and sun with a slight (20%) chance of showers Monday, partly cloudy with a slight (20%) chance of showers in the evening, just mostly cloudy late Monday night,
• Then partly cloudy Tuesday.
• free air freezing level 12,000 ft. Saturday and in the evening, snow level above 8,000 ft. late Saturday night, snow level above 8,000 ft. Sunday through Monday night, then free air freezing level 10,000 ft. rising to 11,000 ft Tuesday afternoon.
• highs 66-62 lows 40-42.

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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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