Here is my weekly weather quiz question for the last time. What is “a Wasatch Wind?” Here is the correct answer. A Wasatch Wind is a strong easterly wind blowing out of the mouths of the canyons of the Wasatch Mountains onto the plains of Utah. It is also called canyon wind. 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. The answer has to be a comment to win. An email answer will not count. Good luck.

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A high pressure ridge (Shaded “Arch” shape with blue arrows) is moving over the Pacific Northwest to warm us up to hot for your weekend.  There will be cooling for the beginning of the workweek.

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Air Quality Index:

Eugene-Springfield: The Air Quality Index is 30 in the Good category measuring Ozone.

Oakridge: The Air Quality Index is 15 in the Good category measuring Particulate Matter.

Cottage Grove: The Air Quality Index is 37 in the Good category measuring Ozone.

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

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Advisories:

• A HEAT ADVISORY IS IN EFFECT UNTIL 9 PM SUNDAY FOR THE COAST RANGE OF NORTHWEST OREGON, THE CENTRAL COAST RANGE OF WESTERN OREGON, THE LOWER COLUMBIA, THE GREATER PORTLAND METRO AREA, THE CENTRAL WILLAMETTE VALLEY, THE SOUTH WILLAMETTE VALLEY, THE WESTERN COLUMBIA RIVER GORGE, THE CENTRAL COLUMBIA GORGE,  THE NORTHERN OREGON CASCADES FOOTHILLS, THE CASCADE FOOTHILLS IN LANE COUNTY, AND THE UPPER HOOD RIVER VALLEY.

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

• Mostly sunny and warmer, hot, today, clear tonight,
• Sunny, just a bit cooler, Sunday afternoon, clear in the evening, partly cloudy Sunday night,
• Partly cloudy in the AM, mostly sunny and a bit cooler Monday, mostly clear in the evening, then mostly cloudy late Monday night.
• highs 98-87 lows 57-55.
• AM clouds, a mix of clouds and sun and a bit cooler Tuesday, partly cloudy in the evening, mostly cloudy late Tuesday night,
• Mostly cloudy and cooler with a slight (20%) chance of showers Wednesday afternoon through Thursday evening, mostly cloudy Thursday night,
• Then a mix of clouds and sun and a bit warmer Friday.
• highs 85-80 warming back to 85 Friday lows near 54. (seasonal averages high 83 low 52)

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Forecast for the Umpqua Basin including Roseburg:

• Sunny and warmer today and Sunday (a bit cooler), clear both nights,
• Mostly sunny and cooler Monday, then mostly clear Monday night.
• highs 100-95 lows 60-62.
• Mostly sunny and cooler Tuesday, mostly clear at night,
• Sunny Wednesday AM, partly cloudy and cooler in the afternoon through Friday.
• highs 90-85 lows near 60. (seasonal averages high 85 low 57)

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Forecast for the South Oregon Coast including Coos Bay and North Bend:

• Sunny and a bit warmer this afternoon, clear this evening, partly cloudy with patchy coastal fog late tonight,
• Mostly cloudy Sunday AM with patchy coastal fog and sunny in the afternoon while sunny and cooler inland, mostly cloudy at the shore in the evening and and partly cloudy with patchy fog late at night while  mostly clear inland Sunday at night,
• Mostly cloudy with patchy coastal AM drizzle and patchy fog Monday and partly cloudy in the afternoon while partly cloudy in the AM inland then sunny in the afternoon, partly cloudy Monday night.
• highs 73-65 lows near 56.
• Partly cloudy Tuesday and Tuesday night,
• Mostly cloudy Wednesday, mostly cloudy with a slight (20%) chance of showers Wednesday night and Thursday, then mostly cloudy with patchy fog Thursday night and Friday.
• highs near 65 lows near 56. (seasonal averages high 65 low 53)

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Forecast for the Cascades in Lane County:

• Mostly sunny and warmer today and Sunday, mostly clear both nights,
• Mostly sunny but cooler Monday, then mostly clear Monday night.
• free air freezing level 13,000 ft. today through Monday night.
• highs 82-76 lows 52-48.
• Mostly sunny and cooler Tuesday, partly cloudy Tuesday night and Wednesday, partly cloudy with a slight (20%) chance of showers Wednesday night through Thursday evening, then just partly cloudy Thursday night and Friday.
• free air freezing level 14,000 ft. Tuesday, 12,000 ft. Tuesday night, 13,000 ft. Wednesday, snow level above 8,000 ft. Wednesday night through Thursday night, then free air freezing level 12,000 ft. Friday.
• highs 74-66 warming to 70 Friday lows 48-46.

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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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