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 bringing rain our way. The graphics for days 3-7 show more complex frontal activity moving our way Friday through next Tuesday keeping us wet.

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Air Quality Index:

Eugene/Springfield: The Air Quality Index is 10 in the Good category measuring Particulate Matter.

Oakridge: The Air Quality Index is 46 in the Good category measuring Particulate Matter.

Cottage Grove: The Air Quality Index is 8 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 AM rain and slight (20%) chance of thunderstorms, cooler with showers with a slight (20%) chance of thunderstorms this afternoon (0.50 in. of rain possible), evening rain with a (0%) chance of snow and a slight (20%) chance of thunderstorms, rain with a (40%) chance of snow late tonight (0.25 in. of rain possible, 1 in. of snow possible, snow level 500 ft.),
• Mostly cloudy with rain and snow showers likely (70%) and a bit cooler with Wednesday (0.10 in. of rain possible, snow level 500 ft.), a good (50%) chance of evening snow showers with showers and freezing rain likely (70%), a slight (20%) chance of snow showers late at night (0.10 in. of rain possible),
• A mix of clouds and sun and a bit cooler with a slight (20%) chance of snow showers Thursday, partly cloudy with a slight (20%) chance of evening snow showers, then just partly cloudy late Thursday night.
• highs 43-39 lows 32-15.
• Mostly sunny and a bit cooler Friday, partly cloudy with a slight (20%) chance of snow showers Friday night,
• Partly cloudy with a slight (40%) chance of AM snow showers, a bit warmer with a (30%) chance of showers Saturday afternoon, partly cloudy with a good (50%) chance of evening showers and freezing rain, a good (50%) chance of snow showers with a slight (20%) chance of freezing rain late at night (snow level 1,500 ft.),
• Mostly cloudy AM showers likely (70%) and a slight (20%) chance of freezing rain, showers likely (70%) Sunday afternoon, evening showers likely (70%) with a slight (20%) chance of freezing rain, a good (50%) chance of showers and a slight (20%) chance of freezing rain late Sunday night,
• Then mostly cloudy and a bit warmer with showers likely (70%) Monday.
• highs 38-44 lows 18-32 (seasonal averages high 53 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 with, showers and snow showers and a slight (20%) chance of thunderstorms and cooler today (0.25 in. of rain possible, 4-6 in. of snow possible, AM snow possibly heavy at times, snow level 1,500 ft., patchy blowing snow, visibility 0.25 mile), showers and snow showers and cooler with patchy blowing snow this afternoon and and tonight (visibility 0.25 mi. or less), rain and snow showers tonight (0.25 in. of rain possible),
• Mostly cloudy with rain and snow showers with a slight (20%) chance of thunderstorms and a bit cooler Wednesday (0.10 in. of rain possible, snow level 500 ft.), a good (50%) chance of evening snow showers and a slight (20%) chance of thunderstorms, colder with a good (50%) chance of snow showers late at night (0.10 in. of rain possible),
• Mostly cloudy with a good (50%) chance of AM snow showers, a (40%) chance of rain and snow showers and a bit warmer Thursday afternoon,  partly cloudy with a slight (20%) chance of evening snow showers, then just partly cloudy late Thursday night.
• highs 45-40 warming to 42 Thursday lows 33-20.
• Some AM clouds, sunny and a bit warmer Friday afternoon, mostly cloudy with a slight (20%) chance of snow showers late Friday night,
• Partly cloudy with a slight (20%) chance of AM snow showers, a bit warmer Saturday afternoon with a slight (20%) chance of rain and snow showers, a (40%) chance of rain and snow showers at night,
• Mostly cloudy with rain and snow showers likely (70%) and a bit cooler Sunday and Sunday night,
• Mostly cloudy with AM rain and snow showers likely (70%), then rain and snow showers and a bit warmer Monday afternoon.
• highs 43-47 cooling to 45 Sunday warming back to 47 Monday lows 23-34. (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 coastal showers and a slight (20%) chance of thunderstorms and a bit cooler today while inland showers, snow showers and a slight (20%) chance of thunderstorms and a bit cooler today (0.25 in. of rain possible, 1 in. of snow possible snow possibly heavy at times, snow level 1,500 ft.), evening coastal showers with a good (50%) chance of thunderstorms with showers, coastal snow showers and a good (50%) chance of thunderstorms late tonight while inland showers, show showers and a slight (20%) chance of thunderstorms tonight (0.25 in. of rain possible, 2-4 in. of snow possible, snow level 900 ft.),
• Mostly cloudy and a bit cooler with rain showers and snow showers with a slight (20%) chance of thunderstorms Wednesday (0.25 in. of rain possible, snow level 600 ft.), coastal evening showers and snow showers likely (70%) with a slight (20%) chance of thunderstorms and colder with showers, snow showers and a slight (20%) chance of coastal thunderstorms late Wednesday night while inland evening showers, snow showers likely (70%) and a slight (20%) chance of thunderstorms and inland snow showers likely (70%) and a slight (20%) chance of thunderstorms late at night (0.25 in. of rain possible, snow level 200 ft.)
• Mostly cloudy a with a good (50%) chance of rain and snow showers Thursday, partly cloudy with a slight (20%) chance of evening rain and snow showers, becoming partly cloudy late Thursday night.
• highs 48-44 lows 34-22.
• Sunny and a bit warmer Friday, mostly clear with a slight (20%) chance of rain and snow showers late Friday night,
• Partly cloudy with a slight (20%) chance of AM rain and snow showers, a (0%) chance of showers and a bit warmer Saturday afternoon, mostly cloudy with a good (50%) chance of evening showers, rain and snow showers likely (70%) at night,
• Mostly cloudy and a bit cooler with showers likely (70%) Sunday, rain and snow showers likely (70%) Sunday night,
• Mostly cloudy with AM rain and snow showers, then showers and a bit cooler Monday afternoon.
• highs 45-49 cooling to 47 Monday lows 23-33. (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 AM snow and a slight (20%) chance of thunderstorms,  colder with snow showers (possibly heavy at times) and a slight (20%) chance of thunderstorms this afternoon (1.00 in. of rain possible, 6-12 in. of snow possible), breezy (Wind: W 15-25 mph gusts to  40 mph decreasing to 30 mph this afternoon), evening snow (possibly heavy at times, blowing snow) with a slight (20%) chance of thunderstorms, snow late tonight (0.50 in. of rain possible, 4-6 in. of snow possible),
• Mostly cloudy with snow and a bit cooler Wednesday, evening snow showers likely (70%), a good (50%) chance of snow showers late at night (wind chill temperature down to -1),
• highs 27-23 lows 17-5.
• Some AM clouds, mostly sunny and a bit warmer Friday afternoon (AM wind chill temperature down to 0), partly cloudy Friday night,
• Partly cloudy with a slight (20%) chance of  snow showers and a bit warmer Saturday, partly cloudy with a good (50%) of snow showers at night,
• Mostly cloudy with a good (50%) chance of AM snow showers, snow showers likely (70%) and a bit cooler Sunday afternoon, snow showers likely (70%) Sunday night,
• Then mostly cloudy and a bit cooler with snow showers Monday.
• snow level at the surface Friday and Friday night, at the surface Saturday, 2,500 ft. Saturday night and Sunday, then 2,000 ft. Sunday night and Monday.
• highs 12-22 lows 12-22.

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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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