Here is my weekly weather quiz question. What is “Shear?” 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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An upper level low pressure trough will slowly move to the east away from us, but in the meantime look for the chance of showers to remain with us. High pressure (Shaded “Arch” shape with blue arrows on previous graphic) will move in and dry us out with plenty of sunshine Sunday into next week. Our next potentially weather-changing weak surface frontal system should move through the Pacific Northwest by Thursday.

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Air Quality Index:

Eugene-Springfield: The Air Quality Index is 21 in the Good category measuring Particulate Matter.

Oakridge: The Air Quality Index is 5 in the Good category measuring Particulate Matter.

Cottage Grove: The Air Quality Index is 11 in the Good category measuring Particulate Matter.

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

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Advisories: None At This Time.

 

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

• Mostly cloudy with a good (50%) chance of scattered showers and a slight (20%) chance of thunderstorms this evening, a good (50%) chance of scattered showers late tonight (under 0.10 in. of rain possible, more in storms),
• A mix of clouds and sun and a bit cooler Saturday with a (30%) chance of AM showers, a (30%) chance of scattered showers in the afternoon (0.10 in. of rain possible), partly cloudy at night and Sunday AM (Father’s Day), mostly sunny and warmer in the afternoon, clear Sunday night,
• Mostly sunny and warmer Monday, then clear at night.
• lows 50-44 warming to 52 Monday night highs 68-84.
• Mostly sunny and a bit cooler Tuesday, mostly clear Tuesday night,
• Mostly sunny Wednesday AM, partly cloudy and a bit cooler in the afternoon, partly cloudy Wednesday night,
• Mostly sunny Thursday AM, partly cloudy with a slight (20%) chance of afternoon and evening showers, a (30%) chance of showers Thursday night and Friday AM, then a slight (20%) chance of showers Friday afternoon.
• highs 75 to near 80 Thursday lows 50-54 cooling to 52 Wednesday night. (seasonal averages high 74 low 48).

 

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Eugene-Springfield Pollen Count:

Grass………. Moderate (19)

Trees………. Low (10)

Last Counted: 6/16/16

Data Courtesy of Oregon Allergy Associates.

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Forecast for Roseburg:

• Mostly cloudy with a good (50%) chance of showers tonight (under 0.10 in. of rain possible),
• Partly cloudy Saturday with a slight (20%) chance of AM showers, just partly cloudy and a bit warmer in the afternoon, mostly clear Saturday night,
• Sunny Sunday AM (Father’s Day), partly cloudy and a bit warmer in the afternoon, mostly clear at night,
• Sunny and a bit warmer Monday, then clear Monday night.
• lows 52-47 warming to 53 Monday night highs 72-88.
• Sunny but a bit cooler Tuesday, partly cloudy Tuesday night through Thursday AM, sunny in the afternoon, mostly clear in the evening, becoming mostly cloudy with a slight (20%) chance of showers late Thursday night and Friday AM, then partly cloudy and a bit cooler with a slight (20%) chance of showers Friday afternoon.
• highs 85-83 lows near 52. (seasonal averages high 76 low 52).

 

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

• Mostly clear with a (30%) chance of evening showers, partly cloudy with a (30%) chance of showers late tonight,
• Partly cloudy Saturday with a slight (20%) chance of showers in the AM (under 0.10 in. of rain possible), partly cloudy and a bit cooler Saturday afternoon, mostly clear at night,
• Sunny Sunday AM (Father’s Day), partly cloudy and a bit warmer in the afternoon and Sunday night,
• Sunny and a bit warmer Monday, then clear at night.
• lows 52-50 warming to 54 Monday night highs 62-65.
• Sunny Tuesday AM, partly cloudy and a bit cooler Tuesday afternoon through Thursday, mostly clear in the evening, mostly cloudy with a slight (20%) chance of showers late Thursday night,
• Mostly cloudy with a slight (20%) chance of showers Friday AM, then partly cloudy with a slight (20%) chance of showers and a bit cooler Friday afternoon.
• highs 64-66 cooling back to 64 Friday lows near 52. (seasonal averages high 62 low 51)

 

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Forecast for the Cascades in Lane County:

• Mostly cloudy with showers likely (70%) with a slight (20%) chance of thunderstorms this evening, showers late tonight (0.50 in. of rain possible, more in storms),
• Mostly cloudy with a (40%) chance of showers Saturday AM, a bit warmer with a (40%) chance of showers in the afternoon, mostly cloudy in the evening, just partly cloudy late Saturday night,
• Then mostly sunny and a bit warmer Sunday (Father’s Day) and Monday, clear both nights.
• snow level 6,500 ft. tonight, 5,500 ft. Saturday, free air freezing level 8,000 ft. Saturday night, 10,000 ft. Sunday, 12,000 ft. Sunday night, 13,000 ft. Monday, then 14,000 ft. Monday night.
• lows 37-33 warming to 46 Monday night highs 52-74.
• Mostly sunny and a bit cooler Tuesday, mostly clear at night,
• Mostly sunny Wednesday AM, partly cloudy with a slight (20%) chance of showers in the afternoon and evening, just partly cloudy at night,
• Mostly sunny Thursday AM, partly cloudy with a slight (20%) chance of showers in the afternoon through Friday.
• free air freezing level 15,000 ft. Tuesday, 14,000 ft. Tuesday night, then snow level above 8,,000 ft. Wednesday through Friday.
• highs 72-70 lows 48-42.

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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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