Here is my weekly weather quiz question. What are “Iridescent Clouds?

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An Upper Level Low Pressure Trough (“U” shape) has not moved so it’s still keeping us with the rain chances. The graphics for days 1-3 show the next frontal system headed through Oregon last night.  The graphics for days 3-7 show more complex frontal systems moving our way Monday through next Friday giving us chances of getting wet.

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Air Quality Index:

Eugene/Springfield: The Air Quality Index is 13 in the Good category measuring Particulate Matter.

Oakridge: The Air Quality Index is 21 in the Good category measuring Particulate Matter.

Cottage Grove: The Air Quality Index is 17 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 10 PM TONIGHT ABOVE 3,000 FT. FOR THE NORTHERN OREGON CASCADES.
• A WINTER STORM WARNING IS IN EFFECT  UNTIL 10 PM TONIGHT ABOVE 3,500 FT. FOR THE CASCADES IN LANE COUNTY.
• A WINTER STORM WARNING IS IN EFFECT UNTIL 4 PM TODAY FOR THE SOUTH CENTRAL OREGON CASCADES.
• A WINTER STORM WARNING 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 FOR THE KLAMATH BASIN, NORTHERN AND EASTERN KLAMATH COUNTY, AND WESTERN, CENTRAL, AND EASTERN LAKE COUNTY.
• *A WINTER STORM WARNING IS IN EFFECT UNTIL 10 PM TODAY ABOVE 4,500 FT. FOR THE NORTHERN BLUE MOUNTAINS OF OREGON AND THE NORTHWEST BLUE MOUNTAINS.
• A WINTER WEATHER ADVISORY IS IN EFFECT UNTIL 4 PM TODAY FOR , THE SISKIYOU MOUNTAINS AND THE SOUTH OREGON CASCADES.
• A WINTER STORM WARNING IS IN EFFECT UNTIL 10 PM TONIGHT ABOVE 4,500 FT. FOR THE OCHOCO AND THE JOHN DAY HIGHLANDS.
• A WINTER STORM WARNING IS IN EFFECT UNTIL 10 PM TONIGHT ABOVE 4,000 FT. FOR THE EAST SLOPES OF THE OREGON CASCADES.
• A WINTER STORM WARNING IS IN EFFECT UNTIL 11 AM MST TODAY FOR HARNEY COUNTY.
• A WINTER WEATHER ADVISORY IS IN EFFECT UNTIL 11 AM MST TODAY  FOR BAKER COUNTY AND MALHEUR COUNTY.
• WINTER WEATHER ADVISORY IS IN EFFECT  UNTIL 10 PM TONIGHT ABOVE 4,500 FT. FOR THE SOUTHERN BLUE MOUNTAINS  OF OREGON.
• A WINTER WEATHER ADVISORY IS IN EFFECT UNTIL 4 PM TODAY FOR CENTRAL DOUGLAS COUNTY, EASTERN CURRY COUNTY AND JOSEPHINE COUNTY, THE EASTERN DOUGLAS COUNTY FOOTHILLS, AND JACKSON COUNTY.
• A WIND ADVISORY IS IN EFFECT IS IN EFFECT UNTIL 5 PM MST TODAY FOR THE OREGON LOWER TREASURE VALLEY.
• A WIND ADVISORY IS IN EFFECT UNTIL 4 AM TODAY FOR LADD AND PYLES CANYONS IN THE GRANDE RONDE VALLEY.
• A WIND ADVISORY IS IN EFFECT UNTIL 4 PM TODAY FOR THE FOOTHILLS OF THE NORTHERN BLUE MOUNTAINS OF OREGON.
• A WIND ADVISORY IS IN EFFECT UNTIL 7 PM TODAY FOR JACKSON COUNTY.

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

• Mostly cloudy with AM rain or wet snow, and a bit cooler with rain likely (70%) this afternoon (0.25 in. of rain possible, snow level 1,000 ft.), a good (50%) chance of rain tonight (under 0.10 in. of rain possible),
• Partly cloudy and a bit warmer with a slight (20%) chance of rain Saturday (under 0.10 in. of rain possible), partly cloudy with a good (50%) chance of evening rain, mostly cloudy with rain likely (70%) late Saturday night (under 0.10 in. of rain possible),
• Then mostly cloudy with rain Sunday and Sunday night,
• highs 46-53 lows 32-45.
• Mostly cloudy with rain and a bit warmer Monday, rain Monday night,
• Mostly cloudy and a bit cooler with rain likely (70%) Tuesday, mostly cloudy with a good (50%) chance of rain at night,
• A mix of clouds and sun and a bit warmer with a good (50%) chance of rain Wednesday, partly cloudy with a (40%) chance of rain Wednesday night,
• Then a mix of clouds and sun and a bit warmer with a (40%) chance of rain Thursday.
• highs  54-49 warming to 53 Thursday lows 36-33. (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 with rain and snow and a bit cooler today (0.50 in. of rain possible, 1-2 in. of snow possible, snow level 1,500 ft. rising to 2,500 ft.), a (30%) chance of rain and snow tonight (0.10 in. of rain possible, snow level 2,000 ft.falling to 1,500 ft.),
• Partly cloudy with a slight (20%) chance of AM rain showers, mostly cloudy and a bit warmer with a slight (20%) chance of showers a bit warmer Saturday afternoon, a good (50%) chance of showers late at night,
• Mostly cloudy and a bit warmer with showers Sunday (Daylight Saving time starts 2 am), then showers Sunday night.
• highs 48-55 lows 37-47.
• Mostly cloudy and a bit cooler rain Monday,  rain and snow showers late Monday night,
• Mostly cloudy with a good (50%) of AM rain and snow showers, a good (50%) chance of showers and a bit cooler Tuesday afternoon, a (30%) chance of rain and snow showers at night,
• Mostly cloudy and a bit warmer with a (30%) chance of rain and snow showers Wednesday through Thursday.
• highs 54-50 warming to 56 Thursday lows 38-35. (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 warmer with coastal showers and a slight (20%) chance of thunderstorms today while inland AM rain and snow with a slight (20%) chance of thunderstorms (AM snow level 2,000 ft., no snow accumulation expected) and inland showers and a slight (20%) chance of thunderstorms and bit warmer this afternoon (under 0.10 in. of rain possible) and breezy (Wind: SW 15-25 mph), evening rain likely (70%) with a good (50%) chance of coastal rain late at night while a slight (20%) chance of inland rain and snow late tonight (0.10 in. of rain possible, snow level 2,000 ft.),
• Partly cloudy with a slight (20%) chance of AM coastal showers while partly cloudy with a slight (20%) chance of AM inland showers, mostly cloudy with a slight (20%) chance of showers and a bit warmer Saturday afternoon,  mostly cloudy with a good (50%) chance of evening showers, coastal showers late Saturday night while inland showers likely (70%) late at night,
• Mostly cloudy with showers and a bit warmer Sunday (Daylight Saving time starts 2 am), then showers Sunday night.
• highs 49-54 lows 32-43.
• Monday, evening showers, showers likely (70%) late Monday night,
• Mostly cloudy with AM showers likely (70%), a good (50%) chance of showers and a bit cooler Tuesday afternoon, a (40%) chance of showers at night,
• Mostly cloudy and a bit warmer with a (40%) chance of showers Wednesday and Wednesday night,
• Then mostly cloudy and a bit warmer with a (30%) chance of showers Thursday.
• highs 54-52 warming to 54 Thursday lows 35. (seasonal averages high 55 low 42)

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

• Mostly cloudy and a bit cooler with snow today (3-7 in. of snow possible) and blustery (Pass Wind: SW 15-25 mph gusts to 50 mph), snow tonight (1-3 in. of snow possible),
• Partly cloudy with a slight (20%) chance of AM snow, a good (50%) chance of snow and a slight (20%) chance of rain and warmer Saturday afternoon, a good (50%) chance of evening snow and rain, rain late at night,
• Mostly cloudy and a bit warmer with rain and snow Sunday (Daylight Saving time starts 2 am), then rain and snow Sunday night.
• snow level 2,500 ft. this afternoon,  2,000 ft. tonight, 1,500 ft. rising to 3,000 ft. Saturday afternoon, 3,500 ft. Saturday night, 5,000 ft. Sunday, then 5,500 ft. Sunday night.
• highs 28-39 lows 16-33.
• Mostly cloudy with rain and snow Monday, rain and snow Monday night,
• Mostly cloudy with AM snow likely (70%), a bit cooler with rain and snow likely (70%) Tuesday afternoon, a good (50%) chance of evening rain and snow, a good (50%) chance of snow late at night,
• Mostly cloudy with a good (50%) chance of snow and rain and a bit warmer Wednesday and in the evening, partly cloudy with a good (50%) chance of snow Wednesday night,
• Then a mix of clouds and sun and a bit warmer with good (50%) chance of snow and rain Thursday.
• snow level 5,000 ft. Monday, 3,500 ft. Monday night, 2,500 ft. Tuesday, 3,000 ft. Tuesday night through Wednesday night, then 3,500 ft. Thursday.
• highs 39-33 warming to 38 Thursday lows near 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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