Here is my weekly weather quiz question  for the last time. What is  a “Parapet Wall?” Here is the correct answer. A Parapet Wall In hydrologic terms, is a solid wall built along the top of the dam for ornament, safety, or to prevent overtopping.  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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An upper level high pressure ridge (Shaded “Arch” shape with blue arrows) moved away to return clouds and showers with low pressure. A frontal system brought showers back today. A short-lived high pressure ridge (Shaded “Arch” shape with blue arrows) stops the showers for a short time Monday. Another frontal system will be offshore Wednesday morning. Here comes a new frontal system by Friday morning.

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Air Quality Index:

Eugene-Springfield: The Air Quality Index is 15 in the Good category measuring Particulate Matter.

Oakridge: The Air Quality Index is 7 in the Good category measuring Particulate Matter.

Cottage Grove: The Air Quality Index is 17 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 showers this evening, partly cloudy and cooler with patchy fog and a slight (20%) chance of showers late tonight (0.10 in. of rain possible),
• Patchy AM fog, mostly cloudy Monday afternoon, rain at night (0.10 in. of rain possible),
• Mostly cloudy with a slight (20%) chance of AM rain, rain and a bit warmer Tuesday afternoon (0.25 in. of rain possible) and windy (Wind: S 5-10 mph increasing to S 15-25 mph gusts to 35 mph), a good (50%) chance of evening showers, a slight (20%) chance of showers late Tuesday night,
• Patchy AM fog, a mix of clouds and sun and a bit warmer Wednesday, then becoming mostly cloudy with rain likely (70%) Wednesday night.
• lows 38-43 cooling to 38 Tuesday night warming back to 43 Wednesday night highs 56-60.
• Mostly cloudy rain likely (60%) and a bit cooler Thursday, a good (50%) chance of rain Thursday night,
• Rain Friday and Friday night,
• Mostly cloudy with rain likely (70%) Saturday, cloudy with a good (50%) chance of rain at night,
• Then cloudy with a good (50%) chance of rain Sunday.
• highs near 56 lows 43-46. (seasonal averages high 54 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 a slight (20%) chance of showers this evening, just mostly cloudy late tonight,
• Partly cloudy with patchy AM fog Monday, mostly cloudy with a slight (20%) chance of afternoon rain, cloudy with evening rain likely (60%), a (40%) chance of rain late Monday night (under 0.10 in. of rain possible),
• Cloudy with rain Tuesday afternoon (0.15 in. of rain possible), mostly cloudy with a slight (20%) chance of showers Tuesday night,
• Just partly cloudy and a bit warmer Wednesday, then mostly cloudy with rain likely (70%) Wednesday night.
• lows 38-43 cooling back to 38 Tuesday night highs 58-66.
• Mostly cloudy with rain likely (60%) and cooler Thursday, a good (50%) chance of rain Thursday night,
• Mostly cloudy with rain Friday through Saturday night,
• Cloudy with a good (50%) chance of AM rain, then rain likely (60%) and a bit cooler Sunday afternoon.
• highs 57-60 cooling back to 57 Saturday lows 44-47. (seasonal averages high 56 low 38).

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

• Mostly cloudy this evening, partly cloudy late tonight and Monday AM, mostly cloudy and a bit warmer with a good (50%) chance of rain Monday afternoon (0.15 in. of rain possible), becoming mostly cloudy with  evening rain likely (70%), a good (50%) chance of rain late Monday night (under 0.10 in. of rain possible),
• Mostly cloudy with a slight (20%) chance of AM rain, rain and a bit cooler Tuesday afternoon (0.45 in. of rain possible), just mostly cloudy at night,
• Partly cloudy and a bit warmer Wednesday, then becoming mostly cloudy with rain Wednesday night.
• lows 42-50 cooling to 45 Tuesday night warming back to 50 Wednesday night highs 60-56 warming to 62 Wednesday.
• Mostly cloudy Thursday AM, rain likely (70%) and a bit cooler in the afternoon, a good (50%) chance of evening rain, rain likely (70%) late Thursday night,
• Mostly cloudy with rain Friday through Saturday night,
• Rain likely (70%) Sunday AM, then rain and a bit cooler Sunday afternoon.
• highs 57-60 cooling to 55 Sunday lows 48-50. (seasonal averages high 54 low 41).

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Forecast for the Cascades in Lane County:

• Mostly cloudy with rain and snow showers likely (70%) this evening, colder with a (30%) chance of snow showers late tonight (1.10 in. of rain possible, 1-2 in. of snow possible),
• Partly cloudy and a bit warmer Monday, becoming mostly cloudy with evening rain likely (60%), a good (50%) chance of rain late Monday night (0.10 in. of rain possible),
• Mostly cloudy with a slight (20%) chance of AM rain, a bit warmer with rain Tuesday afternoon and windy (Wind: S 15-25 mph gusts to 40 mph), evening rain and snow showers likely (70%), a slight (20%) chance of rain and snow showers late Tuesday night,
• Partly cloudy and a bit warmer Wednesday, then a good (50%) chance of rain at night.
• snow level 2,500 ft. tonight, free air freezing level 4,000 ft. rising to 6,000 ft. Monday afternoon, snow level 6,000 ft. Monday night, 6,500 ft. Tuesday, 5,000 ft. falling to 4,000 ft. Tuesday night, free air freezing level 6,000 ft. Wednesday, then 8,000 ft. Wednesday night.
• lows 25-33 cooling to 28 Tuesday night warming back to 33 Wednesday night highs 44-50.
• Mostly cloudy and cooler with rain and snow Thursday, partly cloudy with a good (50%) chance of rain and snow Thursday night,
• Mostly cloudy with rain and snow likely (70%) and a bit warmer Friday, cloudy with a good (50%) chance of rain Friday night through Saturday night,
• Then rain and snow likely (70%) Sunday.
• free air freezing level 5,500 ft. Thursday, 5,000 ft. Thursday night and Friday, 6,000 ft. Friday night,  7,000 ft. Saturday and Saturday night, then 6,000 ft. Sunday.
• highs 40-43 lows 30-33.

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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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