Here is my 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 returned 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 33 in the Good category measuring Particulate Matter.

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

Cottage Grove: The Air Quality Index is 32 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 evening rain, showers likely (70%) late tonight (0.25 in. of rain possible),
• A (30%) chance of AM showers (under 0.10 in. of rain possible), just mostly cloudy and a bit cooler Saturday afternoon, a slight (20%) chance of rain at night,
• Mostly cloudy with rain and bit cooler Sunday (0.25 in. of rain possible), evening showers likely (70%), a good (50%) chance of showers Sunday night,
• A slight (20%) chance of AM showers, a mix of clouds and sun and a bit warmer Monday afternoon, then mostly cloudy with rain likely (70%) Monday night.
• lows 47-39 highs 57-52 warming to 55 Monday.
• Mostly cloudy and a bit warmer with rain likely (70%) Tuesday, a good (50%) chance of rain at night,
• Partly cloudy and a bit warmer Wednesday, mostly cloudy with a good (50%) chance of rain Wednesday night,
• Then rain likely (60%) Thursday (a bit cooler) through Friday (a bit warmer).
• high 57-60 cooling back to 57 Friday lows 42-44. (seasonal averages high 53 low 36).

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Home Wood Heating Advisory:

Eugene-Springfield: GREEN – Burning is Allowed.

Oakridge: GREEN – Burning is Allowed.

*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 with evening showers and a slight (20%) chance of thunderstorms, showers likely (70%) late tonight (0.35 in. of rain possible),
• Mostly cloudy with a slight (20%) chance of AM showers, mostly cloudy and warmer Saturday afternoon, a slight (20%) chance of rain with patchy fog late Saturday night,
• Patchy fog Sunday AM, rain and a bit cooler in the afternoon (0.20 in. of rain possible), mostly cloudy with a (40%) chance of showers late Sunday night,
• Mostly cloudy and a bit warmer with a slight (20%) chance of rain Monday afternoon, then a (40%) chance of rain Monday night.
• lows 48-40 warming to 45 Monday night highs 62-57  warming to 60 Monday.
• Cloudy with a (40%) chance of rain Tuesday AM, rain likely (70%) and a bit warmer in the afternoon, mostly cloudy with a good (50%) chance of showers 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, then mostly cloudy with a (40%) chance of rain Thursday night and Friday.
• highs 60-64 cooling back to 58 Thursday and Friday lows 42-47 cooling to 44 Thursday night. (seasonal averages high 56 low 38).

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

• Mostly cloudy with showers and a slight (20%) chance of thunderstorms this evening, a good (50%) chance of showers late tonight (0.30 in. of rain possible),
• Mostly cloudy with a slight (20%) chance of AM showers, just mostly cloudy and a bit cooler Saturday afternoon, a slight (20%) chance of rain late at night,
• Mostly cloudy and a bit cooler with rain Sunday (0.25 in. of rain possible), a (40%) chance of showers Sunday night,
• Mostly cloudy and a bit warmer Monday with a slight (20%) chance of afternoon rain, cloudy with a good (50%) chance of evening rain, then rain likely (70%) chance of rain late Monday night.
• lows 48-43 warming back to 48 Monday night highs 60-56 warming to 60 Monday.
• Cloudy with a good (50%) chance of rain Tuesday AM, rain likely (70%) and warmer Tuesday afternoon, mostly cloudy with evening showers likely (70%), a good (50%) chance of showers late Tuesday night,
• Just partly cloudy and a bit warmer Wednesday, mostly cloudy with rain likely (60%) Wednesday night and a bit cooler Thursday, then cloudy with a good (50%) chance of rain and breezy Thursday night and Friday.
• highs 60-64 cooling to 58 Thursday and Friday lows 47-50 cooling to 48 Thursday night. (seasonal averages high 53 low 41).

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Forecast for the Cascades in Lane County:

• Mostly cloudy with 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 and snow Sunday, evening rain and snow showers likely (70%), a good (50%) chance of rain and snow showers late at night,
• A mix of clouds and sun and a bit cooler with a good (50%) chance of rain and snow showers Monday AM, a slight (20%) chance of afternoon snow showers, then rain and snow likely (70%) Monday night.
• snow level 7,000 ft. falling to 6,000 ft. late tonight, 5,000 ft. Saturday, free air freezing level 6,500 ft. rising to 7,000 ft. late Saturday night, snow level 5,500 ft. falling to 4,500 ft. Sunday, 3,500 ft. Sunday night and Monday, then 5,000 ft. Monday night.
• lows 32-35 cooling to 25 Sunday night warming to 32 Monday night highs 44-40 warming to 43 Monday.
• Mostly cloudy and a bit warmer with rain likely (70%) Tuesday, rain and snow showers likely (70%) Tuesday night,
• Partly cloudy with a slight (20%) chance of showers Wednesday, mostly cloudy with a good (50%) chance of rain at night,
• Mostly cloudy with rain and snow likely (60%) and a bit cooler Thursday and Thursday night,
• Then mostly cloudy with a good (50%) chance of rain and snow Friday.
• snow level 7,000 ft. Tuesday, 6,000 ft. Tuesday night and Wednesday, 7,000 ft. Wednesday night, 5,000 ft. Thursday, 4,000 ft. Thursday night, then 5,000 ft. Friday.
• highs 46-52 cooling to 40 Thursday warming to 45 Friday lows 32-29.

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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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