Dec
23.
Here is my new weekly weather quiz question. What is “Yellow Snow “? (No it’s not that!)
An Upper Level Low Pressure Trough (“U” shape) continues sending surface fronts over Pacific Northwest. The graphics for days 1-3 show more frontal activity moving through Oregon. The graphics for days 3-7 Thursday through Monday show the parade of frontal activity continuing Thursday, Saturday, and Sunday.
Note: Ski Report: Willamette Pass, Hoodoo, and Mt. Ashland are all open for the ski season. Check their Web sites for specific mountain conditions and hours of operation.
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Air Quality Index:
Eugene/Springfield: The Air Quality Index is 38 in the Good category measuring Particulate Matter.
Oakridge: The Air Quality Index is 9 in the Good category measuring Particulate Matter.
Cottage Grove: The Air Quality Index is 25 in the Good category measuring Particulate Matter.
Data courtesy of Lane Regional Air Protection Agency (LRAPA.org)
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ADVISORIES:
- A WINTER STORM WATCH IS IN EFFECT FROM WEDNESDAY AFTERNOON THROUGH FRIDAY MORNING ABOVE 4,500 FT. FOR THE NORTH OREGON CASCADES, THE CASCADES OF MARION AND LINN COUNTIES, AND THE CASCADES OF LANE COUNTY.
- A WINTER STORM WATCH IS IN EFFECT FROM WEDNESDAY AFTERNOON THROUGH FRIDAY MORNING FOR THE SOUTH CENTRAL OREGON CASCADES, THE SISKIYOU MOUNTAINS, AND THE SOUTHERN OREGON CASCADES.
- A HIGH WIND WARNING IS IN EFFECT FROM 10 PM TONIGHT UNTIL 7 AM TUESDAY FOR THE FOOTHILLS OF THE BLUE MOUNTAINS OF OREGON.
- A HIGH WIND WARNING IS IN EFFECT FROM 10 PM TONIGHT UNTIL 7 AM TUESDAY FOR THE FOOTHILLS OF THE NORTHERN BLUE MOUNTAINS OF OREGON.
- A WIND ADVISORY IS IN EFFECT UNTIL 8 PM TONIGHT FOR JACKSON COUNTY .
- A WIND ADVISORY IS IN EFFECT FROM 10 PM TONIGHT UNTIL 7 AM TUESDAY FOR THE GRANDE RONDE VALLEY.
- A WIND ADVISORY IS IN EFFECT FROM 7 PM TONIGHT UNTIL 4 AM TUESDAY FOR NORTHERN AND EASTERN KLAMATH COUNTY AND WESTERN, CENTRAL, AND EASTERN LAKE COUNTY.
- A WIND ADVISORY IS IN EFFECT FROM 10 PM TONIGHT UNTIL 7 AM TUESDAY FOR THE FOOTHILLS OF THE SOUTHERN BLUE MOUNTAINS OF OREGON.
- A HIGH SURF WARNING IS IN EFFECT UNTIL 10 PM TONIGHT FOR THE CLATSOP COUNTY COAST AND THE TILLAMOOK COUNTY COAST.
- A HIGH SURF WARNING IS IN EFFECT UNTIL 4 AM TUESDAY FOR THE SOUTH CENTRAL OREGON COAST AND THE CURRY COUNTY COAST.
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HEALTH ADVISORIES:
- A PERMANENT HEALTH ADVISORY REMAINS IN EFFECT FOR THE SOUTH UMPQUA RIVER BAR. POOLS IN THE BEDROCK ALONG THE RIVERS EDGE ARE KNOWN TO DEVELOP BLUE-GREEN ALGAE (CYANOBACTERIAL) BLOOMS THAT CAN BE HARMFUL TO PETS AND PEOPLE IF ACCIDENTAL INGESTION OCCURS. SIGNS HAVE BEEN POSTED ALONG SEVERAL ACCESS AREAS ALONG THE RIVER.
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Forecast for the Southern and lower Mid Willamette Valley including Eugene-Springfield and Albany-Corvallis:
- Mostly cloudy with rain tonight (1.00 in. of rain possible),
- Mostly cloudy with patchy AM fog and rain likely (70%), a mix of clouds and sun and a bit warmer with patchy fog and a good (50%) chance of rain Tuesday afternoon (0.10 in. of rain possible), mostly cloudy with patchy fog and a (40%) chance of rain (under 0.10 in. of rain possible) Tuesday night (Christmas Eve),
- Mostly cloudy with a good (50%) of AM rain, a bit cooler with rain likely (70%) Wednesday afternoon (Christmas Day) (under 0.10 in,. of rain possible, rain at night (0.50 in. of rain possible),
- Mostly cloudy and a bit warmer with rain Thursday, then rain Thursday night.
- lows 45-38 warming to 46 Thursday night highs 52-48 warming back to 52 Thursday.
- Mostly cloudy and a bit warmer with rain Friday and Friday night,
- Mostly cloudy with rain Saturday, rain at night,
- Mostly cloudy and a bit cooler with rain Sunday, rain Sunday night,
- Then mostly cloudy and a bit cooler with rain Monday.
- highs 54-48 lows 48-40. (seasonal averages high 46 low 34)
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Your College Football Weather Forecast:
Wednesday January 1, 2025:
The Ducks vs. Ohio State Buckeyes in the Rose Bowl, Pasadena, California: Game time: 2 pm. Too soon for a preliminary weather forecast.
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HOME WOOD HEATING ADVISORY:
Eugene & Springfield: GREEN – The burning wood is allowed.
Oakridge and Westfir: GREEN – The burning wood is allowed.
The use of pellet stoves is always allowed.
Data courtesy of Lane Regional Air Protection Agency (LRAPA.org)
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Forecast for the Umpqua Valley including Roseburg:
- Mostly cloudy with rain tonight (1.00 in. of rain possible),
- Mostly cloudy with AM rain likely (70%), a bit warmer with a good (50%) chance of rain Tuesday afternoon (0.25 in. of rain possible, snow level 3,500 ft.), patchy fog with a (30%) chance of showers (under 0.10 in. of rain possible) at night (Christmas Eve),
- Mostly cloudy with patchy AM fog and a good (50%) chance of rain and snow (AM snow level 2,500 ft.), rain (under 0.10 in. of rain possible) and a bit cooler Wednesday afternoon (Christmas Day), rain with a slight (20%) chance of evening thunderstorms, showers and a slight (2o%) chance of thunderstorms late at night (0.50 in. of rain possible) and breezy (Wind: S 15-25 mph),
- Mostly cloudy and a bit cooler with showers and a slight (20%) chance of thunderstorms Thursday, then rain Thursday night.
- lows 46-38 warming back to 46 Thursday night highs 50-49 warming to 53 Thursday.
- Mostly cloudy and a bit warmer with rain Friday, rain Friday night,
- Mostly cloudy with rain Saturday and at night.
- Mostly cloudy and a bit cooler with rain Sunday, rain and cooler Sunday night,
- Mostly cloudy with AM rain and snow likely (70%), then a good (50%) chance of rain and a bit cooler Monday.
- highs 54-48 lows near 46. (seasonal averages high 48 low 36)
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Forecast for The South Oregon Coast Including Coos Bay and North Bend:
- Mostly cloudy with evening rain, rain likely (70%) and breezy (Wind: S 15-25 mph gusts to 40 mph shifting SW 10-15 mph late tonight) tonight (0.75 in. of rain possible),
- Cloudy with AM coastal showers and a slight (20%) chance of thunderstorms and partly cloudy with a good (50%) chance of coastal rain Tuesday (0.10 in. of rain possible) while inland AM rain and a good (50%) chance of inland rain and a bit cooler Tuesday afternoon, patchy fog with a (30%) chance of rain (under 0.10 in. of rain possible) Tuesday night (Christmas Eve),
- Cloudy with patchy AM fog, coastal rain Wednesday while a good (50%) chance of inland AM rain with inland rain Wednesday afternoon (Christmas Day) (under 0.10 in. of rain possible), coastal showers and a slight (20%) chance of thunderstorms at night while evening inland rain and a slight (20%) chance of thunderstorms and inland showers and a slight (20%) chance of thunderstorms late Wednesday night (1.00 in. of rain possible),
- Mostly cloudy and a bit warmer with showers and a slight (20%) chance of thunderstorms Thursday, then rain Thursday night.
- lows 45-40 warming to 46 Wednesday night and Thursday night highs 55-58.
- Mostly cloudy and a bit warmer with rain Friday and Friday night,
- Mostly cloudy with rain Saturday, rain at night,
- Mostly cloudy with rains and a bit cooler Sunday, rain Sunday night,
- Mostly cloudy with AM rain likely (70%), then a good (50%) chance of rain and a bit cooler Monday afternoon.
- highs 59-54 lows 47-40. (seasonal averages high 53 low 40)
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Forecast for the Northern Oregon Cascades including the Cascades in Lane County:
- Mostly cloudy with rain tonight, a slight (20%) chance of snow late (1.50 in. of rain possible, 1 in. of snow possible),
- Mostly cloudy with AM rain and snow likely (70%), a bit warmer with a good (50%) chance of rain and snow Tuesday afternoon (0.50 in. of rain possible), evening rain and snow likely (70%), then a slight (20%) chance of snow (under 0.10 in. of rain possible, 1 in. of snow possible) late Tuesday night (Christmas Eve),
- Mostly cloudy with snow likely (70%) and afternoon rain likely (70%) Wednesday (Christmas Day), rain and snow at night (snow possibly heavy at times),
- Mostly cloudy with rain and snow Thursday (snow may be heavy at times), then rain and snow Thursday night (snow may be heavy at times).
- snow level 8,000 ft. falling to 5,500 ft. late tonight, 4,000 ft. Tuesday, 2,500 ft. Tuesday night, 2,000 ft. rising to 4,000 ft. Wednesday afternoon, 5,000 ft. Wednesday night through Thursday night.
- lows 32-22 warming back to 32 Thursday night highs near 34.
- Mostly cloudy and a bit warmer with rain and snow Friday, rain with a slight (20%) chance of snow Friday night,
- Mostly cloudy with rain and a slight (20%) chance of snow Saturday and at night,
- Mostly cloudy and a bit cooler with rain and snow Sunday (snow may be heavy at times), snow and rain Sunday night (snow may be heavy at times),
- Then mostly cloudy and a bit cooler with snow with rain likely (70%) Monday.
- snow level 5,500 ft. Friday, 7,000 ft. Friday night, 6,000 ft. Saturday and Saturday night, 5,000 ft. Sunday, 3,500 ft. Sunday night, then 3,000 ft. Monday.
- highs 37-30 lows 34-25.