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

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An Upper Level Low Pressure Trough (“U “shape) is slowly moving southward over the Pacific Northwest. The graphics for days 1-3 show a slight pause in the frontal activity.  The graphics for days 3-7 show more complex frontal activity moving our way Sunday through next Thursday 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 12 in the Good category measuring Particulate Matter.

Cottage Grove: The Air Quality Index is 5 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:

• Partly cloudy with a slight (20%) chance of evening snow showers, just partly cloudy late tonight (under 0.10 in. of rain possible),
• Sunny and a bit cooler Friday, mostly clear Friday night,
• Mostly sunny and a bit warmer with a slight (20%) chance of rain Saturday afternoon (snow level 1,000 ft.), evening snow with a slight (20%) chance of rain, rain late at night (0.10 in. of rain possible, snow level 1,000 ft.),
• Mostly cloudy with AM snow and rain, snow and a bit cooler Sunday afternoon (snow level 1,500 ft.), a good (50%) chance of evening rain and snow, then snow likely (70%) late Sunday night (snow level 1,000 ft.).
• lows 17-30 highs 38-46.
• Mostly cloudy with AM snow likely (70%) and rain, rain and a bit warmer Monday afternoon (snow level 1,000 ft.), evening rain likely (70%), a good (50%) chance of rain and snow late Monday night (snow level 1,500 ft.),
• Mostly cloudy with a AM snow, rain likely (70%) Tuesday afternoon (snow level 1,000 ft.), partly cloudy with a (40%) chance of evening rain and a slight (20%) chance of snow, partly cloudy with a slight (20%) chance of snow late Tuesday night,
• Clouds and sun with a good (50%) chance of AM snow and rain, a mix of clouds and sun with a good (50%) chance of rain Wednesday afternoon, snow level (1,000 ft.), a good (50%) chance of rain Wednesday night,
• Then mostly cloudy and a bit cooler with rain likely (70%) Thursday.
• highs 45-43 lows 30-25 warming to 29 Thursday (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 a (40%) chance of evening snow with a slight (20%) chance thunderstorms, a (40%) chance of snow tonight (under 0.10 in. of rain possible),
• Sunny and a bit cooler Friday, mostly clear Friday night,
• Sunny and a bit warmer Saturday, partly cloudy with a (40%) chance of evening rain and snow showers, mostly cloudy with rain and snow showers late Saturday night (0.10 in. of rain possible, snow level 1,000 ft.),
• Mostly cloudy with AM rain and snow showers, rain and snow showers likely (70%) and a bit cooler Sunday afternoon, then rain and snow showers likely (70%) Sunday night.
• lows 25-23 warming to 32 Saturday night and Sunday night highs 44-48 cooling back to 44 Sunday.
• Mostly cloudy with rain and snow showers and a bit warmer Monday, evening rain and snow showers, rain and snow showers  likely (70%) late Monday night,
• Mostly cloudy and a bit cooler with rain and snow showers likely (70%) Tuesday, a (40%) chance of rain and snow showers at night,
• Mostly cloudy and a bit warmer with a slight (20%) chance of rain and snow showers Wednesday, a (30%) chance of showers Wednesday night,
• Mostly cloudy with a (40%) chance of AM rain and snow showers, then rain and snow showers likely (70%) Thursday.
• highs 46-44 warming to 45 Wednesday and Thursday lows 32-27 warming to 29 Wednesday 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 a (40%) chance of evening coastal rain, snow and a slight (20%) chance of thunderstorms and a slight (20%) chance of coastal rain and snow tonight while inland evening and a slight (20%) chance of thunderstorms snow showers likely (70%), a slight (20%) chance of inland snow showers late tonight (under 0.10 in. of rain possible, 1 in. of snow possible, snow level 0 ft.),
• Sunny and warmer Friday, clear with widespread frost Friday night,
• AM widespread frost, sunny and a bit warmer Saturday, partly cloudy with evening coastal showers likely (70%) and mostly cloudy with coastal showers late at night while partly cloudy with evening inland rain and snow showers likely (70%) and mostly cloudy with inland rain and snow showers late Saturday night (0.25 in. of rain possible),
• Mostly cloudy with AM rain and snow showers (snow possibly heavy at times), rain and snow showers likely (70%) and a bit cooler Sunday afternoon and evening, rain and snow showers late Sunday night (snow level 1,500 ft., snow possibly heavy at times).
• lows 25-22 warming 32 Saturday night and Sunday night highs 47-49 cooling back to 47 Sunday.
• Mostly cloudy with AM rain and snow showers, showers Monday afternoon, evening rain and snow showers, rain and snow showers likely (70%) late Monday night,
• Mostly cloudy with rain and snow showers Tuesday, a good (50%) chance of rain and snow showers at night,
• Mostly cloudy and a bit warmer with a (30%) chance of rain and snow showers Wednesday, a (40%) chance of showers Wednesday night,
• Then mostly cloudy with showers likely (70%) Thursday.
• highs 47-49  lows 32-30. (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 evening snow showers, partly cloudy with a slight (20%) chance of snow showers late tonight (1 in. of snow possible, patchy blowing snow, wind chill temperature down to -9),
• Partly cloudy with patchy AM blowing snow, AM wind chill temperature down to -8, sunny and a bit cooler Friday afternoon, mostly clear Friday night,
• Mostly sunny and warmer Saturday, increasing clouds with evening snow likely (70%),  snow late Saturday night (snow possibly heavy at times,)
• Mostly cloudy with snow and a bit cooler Sunday (possibly heavy at times in AM), a good (50%) chance of evening snow, then snow likely (70%) Sunday night.
• snow level at the surface tonight, free air freezing level at the surface Friday and Friday night, at the surface rising to 5,500 ft.  Saturday afternoon, snow level 2,000 ft. Saturday night, 1,500 ft. Sunday, then at the surface Sunday night.
• lows 5-22 cooling to 16 Sunday night highs 28-39 cooling to 27 Sunday.
• Mostly cloudy and a bit warmer with snow Monday, evening snow, a good (50%) chance of snow late Monday night,
• Mostly cloudy with a good (50%) chance of AM snow, snow and a bit cooler Tuesday afternoon, a good (50%) chance of evening snow, partly cloudy with a good (50%) chance of snow at night,
• A mix of clouds and sun and a bit warmer with a good (50%) chance of snow Wednesday, mostly cloudy with a good (50%) chance of snow Wednesday night,
• Then mostly cloudy with snow likely (70%) Thursday.
• snow level 1,500 ft. Monday and Monday night, at the surface Tuesday through Wednesday, 2,000 ft. Wednesday night, then 2,500 ft. Thursday.
• highs 30-28 warming to warming back to 30 Wednesday and Thursday lows 17-13 warming to 16 Wednesday night.

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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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