Here is my weekly weather quiz question What is the “Kelvin Temperature Scale?

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An Upper Level Low Pressure Trough (“U” shape) continues to control the weather of the Pacific Northwest. The graphics for days 1-3 show the complex frontal system that’s moving through Oregon. The graphics for days 3-7 show the complex frontal systems moving our way Friday through next Tuesday.

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Air Quality Index:

Eugene/Springfield: The Air Quality Index is 17 in the Good category measuring Particulate Matter.

Oakridge: The Air Quality Index is 5 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)

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ADVISORIES:

• A WINTER WEATHER ADVISORY IS IN EFFECT UNTIL 11 AM THURSDAY ABOVE 4,000 FT. FOR THE NORTHERN BLUE MOUNTAINS OF OREGON AND THE NORTHWEST BLUE MOUNTAINS.

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

• Partly cloudy with patchy frost late tonight,
• Mostly cloudy with a slight (20%) chance of showers and a bit cooler Thursday,  a good (50%) chance of showers Thursday night (under 0.10 in. of rain possible),
• Mostly cloudy with rain and a bit cooler Friday, rain at night (0.75 in. of rain possible)
• Mostly cloudy rain and a bit cooler Saturday and a slight (20%) chance of afternoon thunderstorms, then showers Saturday night.
• lows 35-38 highs 55-48.
• Mostly cloudy with AM showers, rain and a bit cooler Sunday afternoon and in the evening, rain late and snow showers likely (70%) late Sunday night (snow level 1,000 ft.),
• Mostly cloudy with AM rain and snow showers likely (70%), showers and a bit warmer Monday afternoon (snow level 1,500 ft.), showers likely (70%) at night with snow showers likely (70%) late at night,
• Mostly cloudy with AM snow showers likely (70%), showers likely (20%) and a bit warmer Tuesday afternoon, a good (50%) chance of evening showers, partly cloudy with a good (50%) chance of showers late Tuesday night,
• Then a mix of clouds and sun and a bit warmer with a good (50%) chance of showers Wednesday.
• highs 47-52 lows near 33. (seasonal averages high 59 low 38)

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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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Eugene-Springfield Pollen Count:

Forecast for the Umpqua Valley including Roseburg:

• Partly cloudy with a slight (20%) chance of evening thunderstorms, mostly cloudy with a slight (20%) chance of showers tonight (under 0.10 in. of rain possible),
• Mostly cloudy and a bit cooler with a (30%) chance of showers Thursday (snow level 2,500 ft.), a (30%) chance of showers late Thursday night, (snow level 2,500 ft. falling to 2,000 ft.)
• Cloudy with AM rain and snow likely (70%), a good (50%) chance of rain and snow and a bit cooler Friday afternoon (snow level 2,000 ft.] rising to 2,500 ft), rain at night (0.25 in., of rain possible, snow level 3,000 ft.) and breezy (Wind: S 15-25 mph),
• Mostly cloudy with rain and a bit cooler Saturday, then rain and snow showers Saturday night.
• lows 36-42 cooling to 39 Saturday night highs 56-52.
• Mostly cloudy and a bit cooler with rain and snow Sunday and in the evening, rain and snow showers likely (70%) late Sunday night,
• Mostly cloudy with rain and snow showers Monday and in the evening, rain and snow showers likely (70%) late Monday night,
• Mostly cloudy with rain and snow showers likely (70%) and a bit warmer Tuesday, mostly cloudy with rain and snow showers Tuesday night,
• Then mostly cloudy and a bit warmer with rain and snow showers Wednesday.
• highs 48-52 lows near 35. (seasonal averages high 60 low 41)

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

• Becoming mostly cloudy with patchy evening coastal fog and areas of coastal fog late tonight while mostly cloudy with patchy inland fog late tonight,
• Mostly cloudy with a (30%) chance of coastal showers and a bit cooler Thursday while a (30%) chance of inland showers and a bit cooler Thursday afternoon, a (40%) chance of showers Thursday night (snow level 2,000 ft. late),
• Mostly cloudy with of AM coastal rain with rain Friday afternoon while inland rain likely (70%) Friday and breezy (Wind: S 15-25 mph), rain Friday night (1.0 in. of rain possible) and windy (Wind: S 20-30 mph gusts to 45 mph late at night),
• Mostly cloudy with AM rain, rain likely (70%) Saturday afternoon, then rain Saturday night.
• lows 37-39 cooling back to 37 Saturday night highs near 52.
• Mostly cloudy and a bit cooler with rain Sunday, rain and snow showers Sunday night,
• Monday with rain and snow showers Monday, rain and snow showers likely (70%) at night,
• Mostly cloudy with AM rain and snow showers likely (70%), showers likely (70%) and a bit warmer Tuesday afternoon, a (%) chance of evening showers, a good (50%) chance of rain and snow showers late Tuesday night,
• Then mostly cloudy with a good (50%) chance of showers Wednesday.
• highs 48-50 lows near 34. (seasonal averages high 56 low 43)

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

• Partly cloudy with a slight (20%) chance of evening rain and snow showers late tonight (under 0.10 in. of rain possible),
• Mostly cloudy with a slight (20%) chance of AM snow showers, a bit cooler with a good (50%) chance of rain and snow showers Thursday afternoon (under 0.10 in. of rain possible, 1 in. of snow possible), evening snow and rain showers, snow showers likely (70%) Thursday night (under 0.10 in. of rain possible, 1 in. of snow possible),
• Mostly cloudy with AM snow likely (70%), rain with snow likely (70%) a bit cooler Friday afternoon (little or no snow accumulation expected), snow and rain at night (heavy snow accumulation late at night) and breezy (Pass Wind: SW 15-25 mph gusts to 35 mph),
• Mostly cloudy with snow (possibly heavy at times) and a bit cooler Saturday (snow possibly heavy at times) and breezy, then snow showers late Saturday night (snow possibly heavy at times).
• snow level 3,000 ft. tonight, 2,500 ft. Thursday and Thursday night, 3,500 ft. Friday and Friday night, then 2,500 ft. Saturday and  Saturday night.
• lows 22-26 highs 36-32.
• Mostly cloudy AM snow showers, snow (possibly heavy at times) and a bit cooler Sunday afternoon, evening snow (snow possibly heavy at times), show showers likely (70%) late Sunday night,
• Mostly cloudy with snow showers Monday and at night (snow possibly heavy at times),
• Mostly cloudy with snow showers Tuesday, evening snow showers likely (70%), a good (50%) chance of snow showers late Tuesday night,
• Mostly cloudy with a good (50%) chance of AM snow showers, then snow showers likely (70%) and a bit warmer Wednesday afternoon.
• snow level 2,000 ft. Sunday, at the surface Sunday night and Monday, 1,500 ft. Monday night through Tuesday night, then 2,500 ft. Wednesday.
• highs 30-32 lows near 19.

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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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