Here is my new weekly weather quiz question. What is“Isentropic Analysis?

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The Upper Level Airflow is sending moisture west to east straight into the Pacific Northwest. The graphics for days 1-3 show the next frontal system moving through the Pacific Northwest. The graphics for days 3-7 show more complex frontal systems moving our way Thursday through next Monday giving us more chances of getting 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 40 in the Good 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 season has now officially opened. The ban has been lifted.

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ADVISORIES:

• A WINTER WEATHER ADVISORY IS IN EFFECT FROM 11 AM UNTIL 11 PM TODAY ABOVE 2,000 FT. FOR THE NORTHERN OREGON CASCADE FOOTHILLS AND THE CASCADE FOOTHILLS IN LANE COUNTY.
• A WINTER WEATHER ADVISORY IS IN EFFECT FROM 11 AM UNTIL 11 PM TODAY ABOVE 2,500 FT. FOR THE NORTHERN OREGON CASCADES AND THE CASCADES IN LANE COUNTY.
• A WINTER WEATHER ADVISORY IS IN EFFECT FROM 11 AM UNTIL 11 PM TONIGHT FOR THE EAST SLOPES OREGON CASCADES.
• A WINTER WEATHER ADVISORY IS IN EFFECT UNTIL 11 PM TONIGHT FOR THE SOUTH CENTRAL OREGON CASCADES, THE SISKIYOU MOUNTAINS, AND THE SOUTHERN OREGON CASCADES.
• A WIND ADVISORY IS IN EFFECT FROM 8 AM UNTIL 8 PM TONIGHT FOR THE EAST SLOPES OF THE OREGON CASCADES AND CENTRAL OREGON.
• A WIND ADVISORY IS IN EFFECT FROM 5 AM UNTIL 11 PM TONIGHT FOR THE THE KLAMATH BASIN, NORTHERN AND EASTERN KLAMATH COUNTY, AND WESTERN, CENTRAL, AND EASTERN LAKE COUNTY.
• A WIND ADVISORY IS IN EFFECT FROM 8 AM UNTIL 8 PM TODAY FOR THE FOOTHILLS OF THE NORTHERN BLUE MOUNTAINS OF OREGON AND THE FOOTHILLS OF THE SOUTHERN BLUE MOUNTAINS OF OREGON.
• A FLOOD WATCH IS IN EFFECT FROM 5 AM TODAY THROUGH TUESDAY AFTERNOON FOR THE CURRY COUNTY COAST, EASTERN CURRY COUNTY AND JOSEPHINE COUNTY.

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

• Mostly cloudy with rain and a bit cooler today (1.00 in. of rain possible), evening rain likely (70%), partly cloudy a good (50%) chance of rain and snow and colder tonight (0.10 in. rain possible, little or no snow accumulation expected),
• Mostly cloudy with a good (50%) chance of AM rain and snow (no snow accumulation expected), a good (50%) chance of rain and a bit cooler Tuesday afternoon (under 0.10 in. of rain possible), a good (50%) chance of rain Tuesday night, (under 0.10 in. of rain possible, no snow accumulation expected),
• Clouds and sun with a good (50%) chance of AM rain and snow (snow level 1,500 ft.), a mix of clouds and sun and a bit warmer with a good (50%) of rain Wednesday afternoon, then just partly cloudy Wednesday night.
• highs 52-47 warming to 50 Wednesday lows 30-33 cooling to 28 Wednesday night.
• Partly cloudy and a bit warmer Thursday and Thursday night,
• Mostly cloudy with slight (20%) chance of AM rain, a bit cooler with a (40%) chance of showers Friday, a good (50%) chance of rain Friday night,
• Mostly cloudy and a bit warmer with a good (50%) chance of rain Saturday, rain likely (70%) Saturday night,
• Then mostly cloudy and a bit cooler with rain Sunday.
• highs 58-55 warming to 57 Saturday cooling to 52 Sunday lows 32-40. (seasonal averages high 56 low 37)

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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 (LRAPAz

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Forecast for the Umpqua Valley including Roseburg:

• Mostly cloudy and a bit cooler with rain today (0.50 in. of rain possible, afternoon snow level 2,500 ft.), a (30%) chance of rain and snow and colder tonight (0.10 in. of rain possible, snow level 1,500 ft. falling to 1,000 ft. late tonight),
• Mostly cloudy with a slight (20%) chance of AM rain and snow, rain likely (70%) and a bit cooler Tuesday afternoon (0.25 in. of rain possible) and evening, rain and snow likely (70%) late at night (under 0.10 in. of rain possible),
• Mostly cloudy with a (30%) chance of AM rain and snow, partly cloudy and a bit warmer with a slight (20%) chance of  rain Wednesday afternoon, then mostly clear Wednesday night.
• highs 52-48 warming back to 52 Wednesday lows 34-36 cooling to 30 Wednesday night cooling to 30 Wednesday night.
• Partly cloudy and a bit warmer Thursday and in the evening, mostly cloudy with a slight (20%) chance of rain late Thursday night,
• Mostly cloudy and a bit cooler with a (40%) chance of rain Friday and at night,
• Mostly cloudy and a bit warmer with a (40%) chance of rain Saturday, rain likely (70%) Saturday night,
• Then mostly cloudy and a bit cooler with rain Sunday.
• highs 59-56 warming back to 59 Saturday cooling to 53 Sunday lows 36-42. (seasonal averages high 58 low 39)

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

• Mostly cloudy and a bit cooler with rain today (1.00 in. of rain possible) and breezy (Wind: SW 15-25 mph decreasing and shifting to W 10-15 by late morning), a good (50%) chance of coastal rain at night while a good (50%) chance of inland rain and snow tonight (0.10 in. of rain possible),
• Mostly cloudy and a bit cooler and breezy Tuesday (Wind: SW 15-25 mph decreasing and shifting to W 10-15 by late morning), a good (50%) chance of rain Tuesday night (under 0.10 in. of rain possible, snow level 2,000 ft. late at night),
• Mostly cloudy with a (40%) chance of AM rain, becoming mostly sunny with a (30%) chance of rain and a bit warmer Wednesday afternoon, then just mostly clear Wednesday night.
• highs 53-50 warming to 52 Wednesday lows 30-34.
• Partly cloudy and a bit warmer Thursday and in the evening, mostly cloudy with a slight (20%) chance of rain late Thursday night,
• Mostly cloudy with a good (50%) chance of rain and a bit cooler Friday, a good (50%) chance of rain at night,
• Mostly cloudy with a good (50%) chance of rain Saturday, rain likely (70%) Saturday night,
• Mostly cloudy with AM rain, then rain likely (70%) and a bit cooler Sunday afternoon.
• highs 58-52 lows 37-39. (seasonal averages high 55 low 42)

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

• Mostly cloudy with AM snow likely (70%) and rain, rain and snow and a bit cooler this afternoon (1.00 in. of rain possible, 4-8 in. of snow possible) and breezy (Wind: S 15-25 mph gusts to 45 mph decreasing and shifting to SW 15-20 mph gusts to 40 mph this afternoon), evening snow likely (70%), (snow possibly heavy at times), evening snow likely (70%), colder with a good (50%) chance of of snow late tonight (1-4 in. of snow possible),
• Mostly cloudy with a good (50%) chance of AM snow, rain and snow likely (70%) a bit cooler Tuesday afternoon (1-4 in. of snow possible), evening rain and snow likely (70%), snow likely (70%) late at night (2 in. of snow possible),
• Clouds and sun with AM snow likely (70%), a mix of clouds and sun with a good (50%) chance of snow and a bit cooler Wednesday afternoon, then becoming mostly clear late Wednesday night.
• snow level 5,000 ft. falling to 3,500 ft. this afternoon, 2,500 ft. this evening, 2,000 ft. rising to 4,000 ft. Tuesday afternoon, 3,500 ft. falling to 2,500 ft. Tuesday night, 2,000 ft. rising to 2,500 ft. Wednesday afternoon, free air freezing level 4,500 ft. falling to 3,500 ft. late Wednesday night.
• highs 39-35 lows 20-22 cooling to 18 Wednesday night.
• Mostly sunny and a bit warmer Thursday, partly cloudy Thursday night,
• A mix of clouds and sun and a bit cooler with a good (50%) chance of rain and snow Friday, mostly cloudy with evening rain and snow likely (70%), a good (50%) chance of rain and snow late Friday night,
• A mix of clouds and sun and a bit warmer with a good (50%) chance of rain and snow Saturday, rain and snow likely (70%) Saturday night,
• Then mostly cloudy and a bit cooler with rain and snow Sunday,
• free air freezing level 3,500 ft. rising to 5,500 ft. Thursday, 7,000 ft. falling to 5,000 ft. late Thursday night, 3,000 ft. rising to 4,500 ft. Friday afternoon, snow level 4,500 ft. falling to 4,000 ft. late Friday night, 4,000 ft. rising to 4,500 ft. Saturday afternoon, 5,000 ft. falling to 4,500 ft. late Saturday night, then 4,000 ft. Sunday.
• highs 34-40 lows 19-27 cooling to 24 Friday 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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