Here is my new weekly weather quiz question. What is  a “Parapet Wall?” (No it’s not surrounding a castle.) 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 high pressure ridge (Shaded “Arch” shape with blue arrows) has taken over keeping the week dry and warmer. We didn’t get quite as warm as I expected Tuesday, but today really did warm up. By Friday this frontal system (position shown is Saturday with another one following) will be approaching the Pacific Northwest. And, of course, a new frontal system shows up offshore next Tuesday.

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Air Quality Index:

Eugene-Springfield: The Air Quality Index is 27 in the Good category measuring Particulate Matter.

Oakridge: The Air Quality Index is 20 in the Good category measuring Particulate Matter.

Cottage Grove: The Air Quality Index is 23 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 sunny and mild this afternoon, partly cloudy with patchy fog late tonight,
• Patchy AM fog, a mix of clouds and sun with increasing clouds and a (40%) chance of rain Friday afternoon, mostly cloudy with evening rain, showers late Friday night,
• Mostly cloudy with slight (20%) chance of AM showers, just mostly cloudy and a bit cooler Saturday afternoon, partly cloudy with patchy fog late at night.
• highs 60-56 lows 45-47 cooling to 42 Saturday night.
• Patchy AM fog, rain likely (70%) and bit cooler Sunday, cloudy with a good (50%) chance of showers at night,
• A mix of clouds and sun and a bit warmer with a (30%) chance of rain Monday, mostly cloudy with a slight (20%) chance of rain Monday night,
• Just mostly cloudy and a bit warmer Tuesday, partly cloudy at night,
• Then a mix of clouds and sun with a slight (20%) chance of rain Wednesday.
• high 54-60 lows 37-39. (seasonal averages high 53 low 35).

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Home Wood Heating Advisory:

Eugene-Springfield: Yellow – Caution is advised.

Oakridge: Yellow – Caution is advised.

*Note: Pellet stoves may be used anytime if they produce no visible emissions.

Advisory Courtesy of Lane Regional Air Protection Agency (LRAPA).

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Forecast for Roseburg:

• Mostly sunny this afternoon, mostly clear with patchy fog late tonight,
• Mostly cloudy with patchy AM fog, a bit cooler with a (40%) chance of rain Friday afternoon, rain and a slight (20%) chance of evening thunderstorms, showers late Friday night,
• Mostly cloudy with a (40%) chance of AM showers, mostly cloudy and cooler Saturday afternoon and Saturday night.
• highs 70-60 warming to 62 Saturday lows near 46.
• Mostly cloudy with rain and a bit cooler Sunday, evening showers likely (60%), a )40%) chance of showers late Sunday night,
• A (40%) chance of rain Monday, mostly cloudy with a slight (20%) chance of rain at night,
• Just mostly cloudy and a bit warmer Tuesday, partly cloudy Tuesday night,
• Then mostly cloudy with a slight (20%) chance of rain and a bit warmer Wednesday.
• highs 56-66 lows 39-43. (seasonal averages high 55 low 38).

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

• Mostly sunny this afternoon, mostly clear tonight,
• Mostly cloudy and a bit cooler with a slight (20%) chance of coastal rain Friday AM and rain in the afternoon while inland rain likely (70%) in the afternoon, showers with a slight (20%) chance of thunderstorms in the evening, showers late Friday night,
• Mostly cloudy with a slight (20%) chance of AM showers, just mostly cloudy and a bit cooler Saturday afternoon and at night.
• highs 62-60 lows 49-47.
• Mostly cloudy and a bit cooler with rain Sunday, partly cloudy with evening showers likely (60%), mostly cloudy with a slight (20%) chance of showers late Sunday night,
• A (30%) chance of rain Monday, a slight (20%) chance of rain at night,
• Mostly cloudy and warmer Tuesday, partly cloudy with a slight (20%) chance of rain Tuesday night,
• Then mostly cloudy with a (30%) chance of rain Wednesday.
• highs 56-64 lows 43-47. (seasonal averages high 53 low 41).

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Forecast for the Cascades in Lane County:

• Mostly sunny this afternoon, partly cloudy tonight,
• AM clouds and sun, becoming mostly cloudy with a (30%) chance of rain Friday afternoon (0.10 in. of rain possible), rain in the evening, showers late Friday night,
• Mostly cloudy with rain and snow showers likely (60%) Saturday AM, a slight (30%) chance of rain and snow showers and colder in the afternoon, then just mostly cloudy at night.
• free air freezing level 10,000 ft. today, 11,000 ft. tonight, snow level 8,000 ft. Friday, 7,500 ft. falling to 5,000 ft. late Friday night, 4,000 ft. Saturday, then free air freezing level 6,500 ft. Saturday night.
• highs 52-42 lows 35-30.
• Mostly cloudy and a bit warmer with rain and snow Sunday, rain and snow showers likely (70%) late at night,
• A mix of clouds and sun and a bit cooler with a good (50%) chance of rain and snow Monday, mostly cloudy with a slight (20%) chance of rain and snow at night,
• A mix of clouds and sun and a bit warmer Tuesday, partly cloudy at night,
• Then a mix of clouds and sun with a slight (20%) chance of rain and a bit cooler Wednesday.
• snow level  6,000 ft. Sunday, 4,000 ft. Sunday night, 3,500 ft. Monday, 4,500 ft. Monday night, free air freezing level 6,500 ft. Tuesday, 9,000 ft. Tuesday night, then snow level 8,000 ft. Wednesday.
• highs 42-49  cooling to 47 Wednesday lows 25-30.

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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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