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) took over keeping the week dry and warmer. A frontal system returns the chance of rain to the Pacific Northwest today. Here comes another frontal system bringing the chance of more rain Monday night and Tuesday.

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Air Quality Index:

Eugene-Springfield: The Air Quality Index is 62 in the Moderate category measuring Particulate Matter.

Oakridge: The Air Quality Index is 55 in the Moderate category measuring Particulate Matter.

Cottage Grove: The Air Quality Index is 40 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:

• Patchy AM fog, mostly cloudy and a bit cooler with increasing clouds and a good (50%) chance of rain this afternoon (0.25 in. of rain possible), mostly cloudy with evening rain, showers late tonight (0.25 in. of rain possible),
• A (30%) chance of AM showers (under 0.10 in. of rain possible), a mix of clouds and sun and a bit cooler Saturday afternoon, mostly cloudy with patchy fog late at night and Sunday AM, rain in the AM, showers and bit cooler Sunday afternoon (0.25 in. of rain possible), then showers likely (70%) at night.
• highs 57-52 lows 47-37.
• A mix of clouds and sun and a bit warmer with a (40%) chance of showers Monday, mostly cloudy with a (40%) chance of rain Monday night,
• Mostly cloudy and a bit warmer with a (40%) chance of rain Tuesday, partly cloudy with a (40%) chance of rain at night,
• A mix of clouds and sun with a slight (20%) chance of rain Wednesday, then mostly cloudy with a (40%) chance of rain Wednesday night and Thursday.
• high 57-60 cooling back to 57 Thursday lows 38-44. (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 cloudy and a bit cooler with rain this afternoon and evening (0.20 in. of rain possible), showers likely (70%) late tonight (0.35 in. of rain possible),
• Mostly cloudy with a slight (20%) chance of AM showers, mostly cloudy and cooler Saturday afternoon, mostly cloudy with patchy fog late Saturday night and Sunday AM, rain and a bit cooler in the afternoon (0.20 in. of rain possible), then a good (50%) chance of showers late Sunday night.
• highs 62-56 Saturday lows 48-40.
• Mostly cloudy and a bit warmer Monday, cloudy with a (40%) chance of rain Monday night and Tuesday, mostly cloudy with a (30%) chance of rain Tuesday night,
• Just partly cloudy and a bit warmer Wednesday, mostly cloudy with a (40%) chance of rain Wednesday night and Thursday AM, then rain likely (60%) and a bit cooler Thursday afternoon.
• highs 59-63 cooling back to 59 Thursday lows 45-43 warming to 47 Wednesday night. (seasonal averages high 55 low 38).

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

• Mostly cloudy with rain and a bit cooler this afternoon (0.30 in. of rain possible), coastal evening rain and a slight (20%) chance of thunderstorms while evening rain inland and a good (50%) chance of inland showers late tonight (0.30 in. of rain possible),
• Mostly cloudy with a slight (20%) chance of AM coastal showers, just mostly cloudy and a bit cooler Saturday afternoon, a slight (20%) chance of coastal rain late at night,
• Mostly cloudy and a bit cooler with rain Sunday (0.25 in. of rain possible), then mostly cloudy with a good (50%) chance of showers late Sunday night.
• highs 60-56 lows 48-43.
• Mostly cloudy and a bit warmer Monday, cloudy with a good (50%) chance of rain at night and Tuesday AM, rain likely (70%) and warmer Tuesday afternoon, mostly cloudy with a (40%) chance of rain Tuesday night,
• Just partly cloudy and a bit warmer Wednesday, mostly cloudy with a (40%) chance of rain at night,
• Then mostly cloudy and a bit cooler with rain likely (70%) Thursday.
• highs 60-64 cooling to 59 Thursday lows 48-50. (seasonal averages high 53 low 41).

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Forecast for the Cascades in Lane County:

• Increasing clouds with a good (50%) chance of rain this afternoon (0.10 in. of rain possible), rain this evening, showers late tonight (0.50 in. of rain possible),
• Mostly cloudy with a good (50%) chance of rain and snow showers Saturday AM, just mostly cloudy and cooler in the afternoon, and at night,
• Mostly cloudy with rain Sunday AM, rain and snow in the afternoon, then rain and snow showers likely (70%) late at night.
• snow level 7,500 ft. today, 7,000 ft. falling to 6,000 ft. late tonight, 5,000 ft. Saturday, free air freezing level 6,500 ft. Saturday night, 5,500 ft. Sunday, then 3,000 ft. Sunday night.
• highs 52-42 lows 32-24.
• A mix of clouds and sun and a bit cooler with a (40%) chance of rain and snow showers Monday, mostly cloudy with a (40%) chance of rain and snow at night,
• A mix of clouds and sun and a bit warmer with a (30%) chance of rain Tuesday, partly cloudy with a (40%) chance of rain Tuesday night,
• A mix of clouds and sun with a slight (20%) chance of rain and snow Wednesday, mostly cloudy with a (40%) chance of rain at night,
• Then a (40%) chance of rain and snow and a bit cooler Thursday.
• snow level 3,000 ft. Monday, 4,500 ft. Monday night, 6,500 ft. Tuesday, 6,000 ft. Tuesday night, 5,500 ft. Wednesday, 7,000 ft. Wednesday night, then 5,500 ft. Thursday.
• highs 42-46 cooling back to 42 Wednesday lows 27-33.

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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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