Here is my weekly new weather quiz question. What is an “Inversion? 

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An Upper Level Low Pressure Trough (“U “shape) is allowing moisture in the form of clouds from frontal systems to move over the Pacific Northwest. The graphics for days 1-3 show a frontal system headed our way by late today. The graphics for days 3-7 show more complex frontal activity moving our way Thursday through next Monday returning the chances of rain and snow.

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Air Quality Index:

Eugene/Springfield: The Air Quality Index is 50 in the Good category measuring Particulate Matter.

Oakridge: The Air Quality Index is 71 in the Moderate category measuring Particulate Matter.

Cottage Grove: The Air Quality Index is 33 in the Good category measuring Particulate Matter.

Data courtesy of Lane Regional Air Protection Agency (LRAPA)

NOTE: Outdoor burning remains temporarily prohibited for the following areas: Eugene-Springfield (Always), Florence (Always), Lowell, Oakridge and UGB, and Springfield and UGB.

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

• Mostly cloudy with a slight (20%) chance of AM showers, a good (50%) chance of rain and a bit cooler this afternoon (President’s Day), rain tonight (under 0.10 in. of rain possible),
• Mostly cloudy and a bit cooler with rain Tuesday (0.25 in. of rain possible), evening rain with a (40%) chance of snow,  freezing rain with rain likely (70%) with rain likely (70%) at night (0.10 in. of rain possible, snow level 500 ft.),
• Mostly cloudy with showers and a good (50%) chance of snow showers and a bit cooler with Wednesday (snow level 500 ft.), a good (50%) chance of evening showers, then a (50%) chance of snow showers late Wednesday night.
• highs 52-40 lows 38-24.
• Clouds and sun with a (30%) chance of AM snow showers, a mix of clouds and sun with a slight (20%) chance of snow Thursday afternoon, partly cloudy with a slight (20%) chance of evening snow showers, just partly cloudy late Thursday night,
• Partly cloudy with a (30%) chance of snow Friday afternoon, partly cloudy with a (30%) chance of evening snow and freezing rain, mostly cloudy with a (30%) chance of snow and freezing rain late at night (snow level 500 ft.),
• Mostly cloudy with a good (50%) chance of AM rain and freezing rain, and a bit warmer with rain likely (70%) Saturday afternoon, rain likely (70%) Saturday night,
• Then mostly cloudy with rain likely (70%) Sunday.
• highs 40-44 lows 16-32 (seasonal averages high 52 low 35)

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Home Wood Heating Advisory:

Posted Daily

Eugene-Springfield: GREEN– Burning is Allowed.

Oakridge: GREEN– Burning is Allowed.

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

Data courtesy of Lane Regional Air Protection Agency (LRAPA)

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Forecast for the Umpqua Valley including Roseburg:

• Mostly cloudy and a bit warmer with a slight (20%) chance of rain this afternoon (President’s Day), a good (50%) chance of evening rain, rain tonight  (under 0.10 in. of rain possible, snow level 2,500 ft. late at night),
• Mostly cloudy with rain and snow showers (0.25 in. of rain possible, AM snow possibly heavy at times, snow level 1,500 ft., patchy blowing snow, visibility 0.25 mile), rain and snow showers and cooler with patchy blowing snow Tuesday afternoon and and Tuesday night (visibility 0.25 mi. or less), rain and snow showers Tuesday night (0.25 in. of rain possible),
• Mostly cloudy with rain and snow showers and a bit cooler Wednesday, then a good (50%) chance of snow showers and colder late Wednesday night.
• highs 59-40 lows 40-25.
• Mostly cloudy and a bit warmer with a good (50%) chance of show showers Thursday, partly cloudy with a slight (20%) chance of evening snow showers, just partly cloudy late Thursday night,
• Mostly cloudy with a slight (20%) chance of AM snow showers,  a slight (20%) chance of rain and snow showers Friday and at night,
• Mostly cloudy with a (40%) chance of rain and snow showers and a bit warmer Saturday, rain and snow showers likely (70%) and a bit warmer Saturday night and Sunday.
• highs 42-46 lows 20-33. (seasonal averages high 55 low 38)

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

• Mostly cloudy and a bit warmer with a slight (20%) chance of rain this afternoon (President’s Day), cloudy with rain tonight (0.10 in. of rain possible)
• Mostly cloudy with coastal showers and a slight (20%) chance of thunderstorms and a bit cooler Tuesday while showers, snow showers and a slight (20%) chance of thunderstorms Tuesday (0.25 in. of rain possible, small hail possible in storms, inland snow possibly heavy at times) and breezy (Wind: NW 15-25 mph gusts to 40 mph), evening coastal showers with a good (50%) chance of thunderstorms and coastal showers, snow showers and thunderstorms late at night while inland evening showers, show showers and a good (50%) chance of thunderstorms and showers, snow showers and a slight (20%) chance of thunderstorms late at night (0.25 in. of rain possible, small hail possible in evening thunderstorms) and breezy (Wind: NW 15-25 mph gusts to 40 mph decreasing NW 10-15 mph late at night),
• Mostly cloudy with AM rain showers and snow showers and a slight (20%) chance of thunderstorms, a bit cooler with rain and snow showers Wednesday afternoon, evening rain and snow showers likely (70%), then colder with a good (50%) chance of rain and snow showers late Wednesday night.
• highs 55-45 lows 39-28.
• Mostly cloudy a with a good (50%) chance of rain and snow showers Thursday, partly cloudy with a slight (20%) chance of rain and snow showers Thursday night,
• Partly cloudy with a (20%) chance of rain and snow showers Friday,  mostly cloudy with a (30%) chance of rain and snow showers at night,
• Mostly cloudy with a good (50%) chance of AM rain and snow showers, showers likely (70%) and a bit warmer Saturday afternoon and Saturday night,
• Then mostly cloudy and a bit warmer with showers likely (70%) Sunday.
• highs 45-49 lows 22-34. (seasonal averages high 54 low 41)

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Forecast for the Northern Oregon Cascades including the Cascades in Lane County:

• Mostly cloudy with a good (50%) chance of rain (under 0.10 in. of rain possible) and a bit cooler this afternoon (President’s Day), rain and snow tonight (0.50 in. of rain possible, 1-4 in.  of snow possible, snow possibly heavy at times) and breezy (Wind: SW 15-25 mph gusts to 40 mph increasing to 55 mph late at night),
• Mostly cloudy and cooler with snow (possibly heavy at times) and blustery (Wind: w 15-25 mph gusts  to 55 mph decreasing to 35 mph in the afternoon) Tuesday, evening snow (possibly heavy at times), snow late at night,
• Mostly cloudy with snow showers and a bit cooler Wednesday, evening snow showers likely (70%), then a good (50%) chance of snow showers late Wednesday night (wind chill temperature down to 0).
• snow level 5,500 ft. tonight, 5,000 ft. Monday, 4,000 ft. Monday night, 2,500 ft. Tuesday, then at the surface Tuesday night through Wednesday night.
• highs 40-25 lows 24-10.
• A mix of clouds and sun and a bit cooler with a good (50%) chance of snow Thursday (wind chill temperature down to -5), partly cloudy with a (40%) chance of snow Thursday night (wind chill temperature down to -5 late at night),
• Partly cloudy with a slight (20%) chance of AM snow, a bit warmer with a (40%) chance of snow Friday afternoon (AM wind chill temperature down to 0), partly cloudy with  a (40%) chance of snow at night,
• Clouds and sun with a good (50%) chance of AM snow, snow likely (70%) and a bit warmer Saturday afternoon, snow and rain likely (70%) Saturday night,
• Then snow likely (70%) Sunday.
• snow level at the surface Thursday through Friday night, 2,000 ft. Saturday, 3,000 ft. Saturday night, then 2,500 ft. Sunday.
• highs 23-33 lows 5-22.

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For all of your Eugene-Springfield and Lane County News, Weather, and Sports go to: EugeneDailyNews.com

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