Here is my weekly weather quiz question for the last time. What is the “Ionosphere? Here is the correct answer. The Ionosphere is a complex atmospheric zone of ionized gases that extends between 50 and 400 miles (80 to 640 kilometers) above the earth’s surface. It is located between the mesosphere and the exosphere and is included as part of the thermosphere.

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The Jet Stream is sending a strong stream of moisture through the Pacific Northwest. The graphics for days 1-3 show the frontal system that moved through Oregon.  The graphics for days 3-7 show more complex frontal activity moving our way Wednesday through next Sunday giving us 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 26 in the Good category measuring Particulate Matter.

Cottage Grove: The Air Quality Index is 9 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 STORM WARNING IS IN EFFECT UNTIL 4 PM TODAY ABOVE 1,500 FT. FOR EASTERN CURRY COUNTY AND JOSEPHINE COUNTY.
• A WINTER WEATHER ADVISORY IS IN EFFECT UNTIL 4 PM TODAY FOR THE KLAMATH BASIN, NORTHERN AND EASTERN KLAMATH COUNTY, AND WESTERN, CENTRAL, AND EASTERN LAKE COUNTY.
• A WINTER WEATHER ADVISORY IS IN EFFECT UNTIL 4 PM TODAY ABOVE 1,000 FT. FOR CENTRAL DOUGLAS COUNTY AND THE EASTERN DOUGLAS COUNTY FOOTHILLS.
• A WINTER WEATHER ADVISORY IS IN EFFECT UNTIL 1 PM TODAY ABOVE 1,000 FT.  FOR THE SOUTH CENTRAL OREGON COAST AND THE CURRY COUNTY COAST.
• A WINTER WEATHER ADVISORY IS IN EFFECT UNTIL 4 PM TODAY FOR EASTERN CURRY COUNTY AND JOSEPHINE COUNTY.
• A WINTER WEATHER ADVISORY IS IN EFFECT UNTIL 4 PM TODAY FOR THE SOUTH CENTRAL OREGON CASCADES, THE SISKIYOU MOUNTAINS, AND THE SOUTHERN OREGON CASCADES.

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

• Mostly cloudy with AM showers likely (70%) and isolated snow showers (snow level 500 ft.), showers likely (70%) and a bit cooler this afternoon (under 0.10 in. of rain possible, little or no snow accumulation expected), a good (50%) chance of evening showers, a slight (20%) chance of snow showers late tonight (under 0.10 in. of rain possible, little or no snow accumulation expected, snow level 500 ft. late at night),
• Mostly cloudy with AM showers likely (70%) and a slight (20%) chance of snow showers (little or no snow accumulation expected snow level 500 ft.), showers likely (70%) and a bit warmer Monday afternoon (under 0.10 in. of rain possible), evening showers likely (70%) with a (40%) chance of snow showers, a good (50%) chance of showers and snow showers late Monday night (under 0.10 in. of rain possible, no snow accumulation expected, snow level 1,000 ft. late at night),
• Mostly cloudy with AM showers likely (70%) and a good (50%) chance of snow showers, showers likely (70%) Tuesday afternoon (snow level 1,000 ft.), evening showers likely (70%) with a good (50%) chance of snow showers, then a good (50%) chance of snow showers late Tuesday night (snow level 1,000 ft.).
• highs 43-47 lows near 30.
• Mostly cloudy with AM showers likely (70%) with a (40%) chance of snow showers, showers likely (70%) and a bit cooler Wednesday afternoon (snow level 1,000 ft.), a good (50%) chance of rain and snow showers late Wednesday night (snow level 1,000 ft.).
• AM clouds and sun with a good (50%) chance of rain and snow, a mix of clouds and sun with a good (50%) chance of rain and a bit warmer Thursday afternoon (snow level 1,000 ft.), a good (50%) chance of rain at night,
• Mostly cloudy rain likely (70%) and a bit warmer Friday, a good (50%) chance of rain Friday night,
• Then a mix of clouds and sun and a bit warmer with a (50%) chance of rain Saturday.
• highs 45-52 lows 32-35. (seasonal averages high 55 low 36)

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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 cooler with a good (50%) chance of showers and snow showers and a slight (20%) chance of thunderstorms today (under 0.10 in. of rain possible, 1 in. of snow possible lower elevations while 1-2 in. of snow possible above 1,500 ft., snow level 300 ft. rising to 1,000 ft. this afternoon), a (40%) chance of evening rain and snow showers,  a (40%) chance of snow showers, late tonight (under 0.10 in. of rain possible, snow level 500 ft.),
• Mostly cloudy with a good (50%) chance of AM rain and snow showers and snow showers likely (70%) and a bit warmer with a slight (20%) chance of thunderstorms Monday afternoon (under 0.10 in. of rain possible), evening showers and snow showers likely (70%) with a slight (20%) chance of thunderstorms late Monday night (under 0.10 in. of rain possible),
• Mostly cloudy and a bit warmer with rain and snow showers likely (70%) Tuesday, then rain and snow showers likely (70%) Tuesday night.
• highs 44-48 lows 29-33.
• Mostly cloudy and a bit cooler warmer with rain and snow showers likely (70%) Wednesday, a (40%) chance of rain and snow showers Wednesday night,
• Mostly cloudy with a (40%) chance of AM rain and snow showers and a bit warmer Thursday, a good (50%) chance of evening rain and snow showers, rain and snow likely (70%) late at night,
• Then mostly cloudy and a bit warmer with rain likely (70%) Friday through Saturday.
• highs 46-53 lows 33-37. (seasonal averages high 57 low 39)

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

• Mostly cloudy with AM coastal showers and snow showers likely (70%) and a good (50%) chance of showers with a slight (20%) chance of thunderstorms a bit cooler this afternoon while inland showers and snow showers likely (70%) with a slight (20%) chance of thunderstorms this afternoon (0.10 in. of rain possible, 1 in. of snow possible, snow level 800 ft.), a (40%) chance of evening coastal showers with a slight (20%) chance of thunderstorms and coastal showers and snow showers likely (70%) with a slight (20%) chance of thunderstorms late tonight while a (40%) chance of inland evening showers and snow showers with a slight (20%) chance of thunderstorms and a good (50%) chance of rain and snow showers late tonight (under 0.10 in. of rain possible, snow level 700 ft.),
• Mostly cloudy with coastal showers likely (70%) and a slight (20%) chance of thunderstorms Monday while inland AM rain and snow  showers likely (70%) and inland showers likely (70%) and a slight (20%) chance of thunderstorms and a bit warmer Monday afternoon (0.10 in. of rain possible, snow level 600 ft. rising to 1,500 ft. in the afternoon), evening coastal showers likely (70%) with a slight (20%) chance of thunderstorms and showers with a slight (20%) chance of thunderstorms late at night while inland evening showers and snow showers and a slight (20%) chance of thunderstorms and inland rain and snow showers, late Monday night (0.10 in. of rain possible),
• Mostly cloudy with AM rain and snow showers, showers likely (70%) Tuesday afternoon, evening rain and snow showers, then rain and snow showers likely (70%) Tuesday night.
• highs near 46 lows near 33.
• Mostly cloudy with a good (50%) chance of AM rain and snow showers, rain and snow showers likely (70%) and a bit warmer Wednesday afternoon, a (30%) chance of rain and snow showers Wednesday night,
• Mostly cloudy with showers a good (50%) of rain and snow showers and a bit warmer Thursday, rain likely (70%) at night,
• Then mostly cloudy and a bit warmer with rain likely (70%) Friday through Saturday.
• highs 47-52 lows 33-37. (seasonal averages high 55 low 41)

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

• Mostly cloudy with snow showers and a bit cooler today (1-2 in. of snow possible), evening snow showers likely (70%), partly cloudy a good (50%) chance of snow showers late tonight (1 in. of snow possible),
• Mostly cloudy with snow showers and a bit warmer Monday  (light snow accumulation possible), evening snow showers, a good (50%) chance of snow showers late at night (light snow accumulation possible),
• Mostly cloudy with a good (50%) chance of AM snow showers, snow showers and a bit warmer Tuesday afternoon and evening, then a good (50%) chance of snow showers late Tuesday night.
• snow level at the surface tonight through Sunday night, 2,000 ft. Monday afternoon, then at the surface Monday night through Tuesday night.
• highs 25-30 lows 12-15.
• Mostly cloudy with a good (50%) chance of AM snow showers, snow showers likely (70%) and a bit cooler Wednesday afternoon and evening, a good (50%) chance of snow showers at night,
• Mostly cloudy with snow likely (70%) and a bit warmer Thursday, snow likely (70%) Thursday night,
• Mostly cloudy and a bit warmer with rain and snow likely (70%) Friday (afternoon snow possibly heavy at times), evening snow and rain likely (70%), a good (50%) chance of rain and snow late Friday  night,
• Mostly cloudy with a good (50%) chance of AM rain and snow, then rain and snow likely (70%) and a bit warmer Saturday afternoon.
• snow level at the surface Wednesday through Thursday, 2,000 ft. Thursday night, 3,500 ft. Friday, 4,000 ft. Friday night, then 4,500 ft. Saturday.
• highs 29-37 lows 15-25.

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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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