Dec
25.
Here is my 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 Saturday through Wednesday 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 32 in the Good category measuring Particulate Matter.
Oakridge: The Air Quality Index is 22 in the Good category measuring Particulate Matter.
Cottage Grove: The Air Quality Index is 58 in the Moderate category measuring Particulate Matter.
Data courtesy of Lane Regional Air Protection Agency (LRAPA.org)
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ADVISORIES:
- A WINTER WEATHER ADVISORY IS IN EFFECT FROM 1 PM WEDNESDAY UNTIL 10 PM THURSDAY ABOVE 4,500 FT. FOR THE NORTH OREGON CASCADES, THE CASCADES OF MARION AND LINN COUNTIES, AND THE CASCADES OF LANE COUNTY.
- A WINTER WEATHER ADVISORY IS IN EFFECT FROM 4 PM WEDNESDAY UNTIL 10 AM FRIDAY ABOVE 5,000 FT. FOR THE SOUTH CENTRAL OREGON CASCADES, THE SISKIYOU MOUNTAINS, AND THE SOUTHERN OREGON CASCADES.
- A WINTER WEATHER ADVISORY IS IN EFFECT FROM 1 PM WEDNESDAY UNTIL 1O PM THURSDAY ABOVE 4,000 FT. FOR THE EAST SLOPES OF THE OREGON CASCADES.
- A WINTER STORM WATCH IS IN EFFECT FROM WEDNESDAY EVENING THROUGH FRIDAY MORNING FOR BAKER COUNTY.
- A HIGH WIND WARNING IS IN EFFECT FROM 1 PM WEDNESDAY UNTIL 4 PM THURSDAY FOR THE SOUTH CENTRAL OREGON COAST AND THE CURRY COUNTY COAST.
- A HIGH WIND WARNING IS IN EFFECT FROM 1 PM WEDNESDAY UNTIL 4 AM THURSDAY FOR THE SOUTH CENTRAL OREGON COAST AND THE CURRY COUNTY COAST.
- A HIGH WIND WATCH IS IN EFFECT FROM LATE WEDNESDAY EVENING THROUGH THURSDAY MORNING FOR THE CLATSOP COUNTY COAST, THE TILLAMOOK COUNTY COAST, AND THE CENTRAL COAST OF OREGON.
- A WIND ADVISORY IS IN EFFECT FROM 1 PM WEDNESDAY UNTIL 4 AM THURSDAY FOR EASTERN CURRY COUNTY AND JOSEOPHINE COUNTY, AND JACKSON COUNTY.
- A HIGH WIND WARNING IS IN EFFECT FROM 10 PM WEDNESDAY UNTIL 10 AM THURSDAY FOR NORTHERN AND EASTERN KLAMATH COUNTY AND WESTERN, CENTRAL, AND EASTERN LAKE COUNTY.
- A HIGH SURF ADVISORY IS IN EFFECT FROM 4 PM WEDNESDAY UNTIL 10 PM THURSDAY FOR THE CLATSOP COUNTY COAST, THE TILLAMOOK COUNTY COAST, AND THE CENTRAL COAST OF OREGON.
- A HIGH SURF WARNING IS IN EFFECT FROM 4 PM WEDNESDAY 4 PM THURSDAY FOR UNTIL 4 AM TODAY 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 and a bit cooler today (Christmas Day) (0.25 in. of rain possible), rain tonight with a slight (20%) chance of thunderstorms late tonight (1.00 in. of rain possible),
- Mostly cloudy with a slight (20%) chance of AM thunderstorms, showers and a bit warmer Thursday afternoon (0.50 in. of rain possible), rain at night (0.50 in. of rain possible),
- Mostly cloudy and a bit warmer with rain Friday, mostly cloudy Friday night.
- highs 48-54 lows near 46.
- Mostly cloudy and a bit cooler with rain Saturday, rain Saturday night,
- Mostly cloudy and a bit cooler with rain Sunday, rain at night,
- Mostly cloudy and a bit cooler with rain likely (70%) Monday, a (40%) chance of rain Monday night,
- Then mostly cloudy and a bit cooler with a (40%) chance of rain and a slight (20%) chance of snow Tuesday.
- highs 53-46 lows 44-36. (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:
- Cloudy with patchy AM fog and a good (50%) chance of rain and snow, rain and a bit cooler this afternoon (under 0.10 in. of rain possible, (AM snow level 3,000 ft.), mostly cloudy with evening rain, showers (0.50 in. of rain possible) with a slight (20%) chance of thunderstorms late tonight (Christmas Eve) and breezy (Wind: S 15-25 mph gusts to 40 mph),
- Mostly cloudy with AM showers and a slight (20%) chance of thunderstorms, rain with a slight (20%) chance of thunderstorms and a bit warmer Thursday afternoon (0.50 in. of rain possible) and breezy (Wind: SW 15-25 mph decreasing to SW 10-15 mph ), rain Thursday night (0.50 in. of rain possible),
- Mostly cloudy and a bit warmer with rain Friday, then rain Friday night.
- highs 49-55 lows 45-48.
- Mostly cloudy with rain and a bit cooler Saturday and Saturday night.
- Mostly cloudy and a bit cooler with rain Sunday and in the evening, rain and snow late at night,
- Mostly cloudy with AM rain and snow likely (70%), then a good (50%) chance of rain and a bit cooler Monday afternoon and at night,
- Then mostly cloudy and a bit cooler with a good (50%) chance of rain Tuesday.
- highs 54-47 lows 46-36. (seasonal averages high 48 low 36)
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Forecast for The South Oregon Coast Including Coos Bay and North Bend:
- Cloudy with patchy AM fog and a good (50%) chance of rain, rain and a bit warmer this afternoon and windy (Wind: S 5-10 mph increasing to S 20-30 mph late this afternoon), evening rain, showers and a slight (20%) chance of thunderstorms late tonight and windy (Coastal Wind: S 25-40 mph while Inland Wind: S 25-40 mph shifting SW 20-30 mph late tonight gusts 50 increasing to 55 mph late tonight (1.00 in. of rain possible),
- Mostly cloudy and a bit warmer with coastal showers and a slight (20%) chance of thunderstorms Thursday while inland AM showers and a slight (20%) chance of thunderstorms, rain and a slight (20%) chance of thunderstorms Thursday afternoon (0.50 in. of rain possible), rain at night (0.50 in. of rain possible),
- Then mostly cloudy and a bit warmer with rain Friday and Friday night.
- highs 55-59 lows 46-48.
- Mostly cloudy with AM rain likely (70%) and a bit cooler with rain Saturday afternoon and Saturday night,
- Mostly cloudy with rain and a bit cooler Sunday, rain at night,
- Mostly cloudy with rain likely (70%) and a bit cooler Monday, a (40%) chance of rain Monday night,
- Then mostly cloudy and a bit cooler with a (40%) chance of rain Tuesday.
- highs 58-53 lows 45-37. (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 a slight (20%) chance of AM snow, rain, snow and freezing rain (0.25 in. of rain possible, 1-3 in. of snow possible, trace of ice accumulation possible) and a bit cooler this afternoon (Christmas Day), a slight (20%) of evening freezing rain, rain and snow late tonight (1 in. of rain possible, 3-7 in. of snow possible, trace of ice accumulation possible),
- Mostly cloudy with AM rain and snow, rain and snow showers Thursday afternoon (snow may be heavy at times), evening rain with snow showers, rain and snow late at night (snow may be heavy at times),
- Mostly cloudy and a bit warmer with rain and snow Friday (snow possibly heavy at times), then rain and snow Friday night.
- snow level 2,500 ft. rising to 4,000 ft. this afternoon, 5,000 ft. tonight through Thursday night, 5,500 ft. Friday, then 6,000 ft. Friday night.
- highs 33-37 lows near 32.
- Mostly cloudy and a bit cooler with rain and snow Saturday, rain and snow Saturday night (snow possibly heavy at times),
- Mostly cloudy and a bit cooler with rain and snow Sunday (snow possibly heavy at times), snow and rain at night (snow may be heavy at times),
- Mostly cloudy and a bit cooler with snow and rain likely (70%) Monday, a (%) chance of snow with a slight (20%) chance of rain Monday night,
- Then a mix of clouds and sun and a bit warmer with a good (50%) chance of rain and snow Tuesday.
- snow level 5,500 ft. Saturday, 6,000 ft. Saturday night, 4,500 ft. Sunday, 3,000 ft. Sunday night and Monday, 2,500 ft. Monday night, then 3,000 ft. Tuesday.
- highs 35-30 warming to 32 Tuesday lows 32-19.