Here is my new weekly weather quiz question. What are “Striations?” 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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Once an upper level low pushes East of us we’ll be in for lots of sunshine. Upper level high pressure (Shaded “Arch” shape with blue arrows) takes over and strengthens. Some pretty “fair” weather for the Lane County Fair that runs  through Sunday. It looks like the only frontal system to move toward the Pacific Northwest will be to our North next Monday.

 

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Air Quality Index:

Eugene-Springfield: The Air Quality Index is 15 in the good category measuring Ozone.

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

Cottage Grove: The Air Quality Index is 18 in the Good category measuring Ozone.

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

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Advisories:

• A RED FLAG WARNING IS IN EFFECT UNTIL 8PM THIS EVENING FOR STRONG WINDS AND LOW RELATIVE HUMIDITY FOR THE KLAMATH BASIN, THE FREMONT-WINEMA NATIONAL FOREST, THE SOUTH CENTRAL OREGON DESERT INCLUDING THE BLM LAND IN EASTERN LAKE AND WESTERN HARNEY COUNTIES.
• A Public Health Advisory for higher-than-normal levels of fecal bacteria in ocean waters at D River Beach, located in Lincoln county has been LIFTED. Officials do recommend that people  stay away from pools of water on the beach and runoff from those pools that are frequented by birds.
• A Blue-Green Algae health advisory remins 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.

 

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Forecast for the Southern and lower Mid Willamette Valley including Eugene-Springfield and Albany-Corvallis:

• Increasing clouds to cloudy with a slight (20%) chance of showers tonight,
• Mostly cloudy Friday AM, mostly sunny and a bit warmer in the afternoon, clear Friday night,
• Then sunny and a bit warmer Saturday and Sunday, clear Saturday night.
• lows 55-52 warming back to 55 Saturday night highs 80-86.
• Then sunny and a bit warmer Monday through Thursday, clear each night.
• highs 87-90 lows near 55. (seasonal averages high 84 low 52)

 

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Eugene-Springfield Pollen Count:

Grass………. Low (2)

Trees………. Low (0)

Last Counted: 7/18/16

Data Courtesy of Oregon Allergy Associates.

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Forecast for Roseburg:

• Partly cloudy with a slight (20%) chance of showers this evening, mostly cloudy with a slight (20%) chance of showers late tonight,
• AM clouds, sunny and a bit warmer Friday afternoon, clear at night,
• Partly cloudy Saturday AM, sunny and a bit warmer in the afternoon, clear Saturday night,
• Then mostly sunny and a bit warmer Sunday, mostly clear at night.
• lows 58-55 warming back to 58 Sunday night highs 82-88.
• Mostly sunny Monday, mostly clear at night,
• Partly cloudy and a bit warmer Tuesday, mostly clear at night,
• Mostly sunny and a bit warmer Wednesday through Thursday, mostly clear Thursday night.
• highs 88-92 lows 59-57. (seasonal averages high 86 low 57)

 

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

• Mostly cloudy with a slight (20%) chance of coastal showers tonight while partly cloudy with a slight (20%) chance of evening inland showers and just mostly cloudy inland late tonight,
• AM clouds, sunny Friday afternoon, mostly clear Friday night,
• Partly cloudy in the AM, sunny Saturday afternoon, mostly clear at night,
• Then mostly sunny Sunday, mostly clear Sunday night.
• lows 58-55 highs near 66.
• Then partly cloudy Monday through Thursday.
• highs 65-69 lows near 55. (seasonal averages high 65 low 53)

 

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Forecast for the Cascades in Lane County:

• Increasing clouds to cloudy with a (40%) chance of showers and thunderstorms this evening, a slight (20%) chance of late showers tonight (under 0.10 in. of rain possible, more in storms),
• Mostly cloudy Friday AM, mostly sunny in the afternoon, clear Friday night,
• Sunny and a bit warmer Saturday and Sunday, clear Saturday night.
• snow level above 8,000 ft. tonight, free air freezing level 12,000 ft. Friday, 13,000 ft. Friday night, 14,000 ft. Saturday and Saturday night, then 15,000 ft. Sunday and Sunday night.
• lows 44-42 warming to 46 Sunday highs 68-76.
• Sunny and a bit warmer Monday, Tuesday, Wednesday and Thursday, clear each night.
• free air freezing level 15,000 ft. Monday through Tuesday, 16,000 ft. Tuesday night, 15,000 ft. Wednesday then 16,000 ft. Wednesday night and Thursday.
• highs 77-74 warming back to 77 Thursday lows 50-52.

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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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