Dec
29.
Here is my weekly weather quiz question for the last time. What is “Yellow Snow “? (No it’s not that!) Here is the correct answer. Yellow Snow: Snow given a golden or yellow appearance by the presence in it of pine, cypress pollen, or anthropogenic material or animal-produced material.
The Jet Stream is sending an Atmospheric River full of moisture south of the Pacific Northwest. The graphics for days 1-3 show a frontal system offshore Tuesday. The graphics for days 3-7 Wednesday through Sunday show more frontal activity continuing through the period.
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.
__________
Air Quality Index:
Eugene/Springfield: The Air Quality Index is 23 in the Good category measuring Particulate Matter.
Oakridge: The Air Quality Index is 17 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)
_______________
ADVISORIES:
- A WINTER STORM WARNING IS IN EFFECT UNTIL 4 AM MONDAY ABOVE 3,000 FT. FOR THE NORTH OREGON CASCADES, THE CASCADES OF MARION AND LINN COUNTIES, AND THE CASCADES OF LANE COUNTY.
- A WINTER STORM WARNING IS IN EFFECT UNTIL 4 AM MONDAY ABOVE 4,500 FT. FOR THE EAST SLOPES OF THE OREGON CASCADES.
- A WINTER WEATHER ADVISORY IS IN EFFECT UNTIL 10 PM TONIGHT FOR THE SOUTH CENTRAL OREGON CASCADES, THE SISKIYOU MOUNTAINS, AND THE SOUTHERN OREGON CASCADES.
- A WINTER STORM WARNING IS IN EFFECT UNTIL 10 AM MONDAY ABOVE 4,000 FT. FOR THE NORTHERN BLUE MOUNTAINS OF OREGON.
- A BACK COUNTRY AVALANCHE WARNING IS IN EFFECT UNTIL 6: 30 AM MONDAY FOR THE WALLOWA MOUNTAINS SOUTH AND THE ELKHORN MOUNTAINS. (THIS WARNING DOES NOT INCLUDE IMPROVED SKI AREAS))
- A FLOOD WATCH IS IN EFFECT THROUGH TUESDAY AFTERNOON FOR THE PUDDING RIVER AT AURORA AFFECTING THE EAST CENTRAL WILLAMETTE VALLEY ZONE.
- A FLOOD WARNING IS IN EFFECT UNTIL WEDNESDAY AFTERNOON FOR THE COQUILLE RIVER AT COQUILLE AFFECTING COOS COUNTY.
- A FLOOD WATCH IS IN EFFECT UNTIL LATE TONIGHT FOR THE SOUTH FORK OF THE COQUILLE RIVER AT MYRTLE POINT AFFECTING COOS COUNTY -THE SOUTH CENTRAL OREGON COAST ZONE.
- A FLOOD WARNING IS IN EFFECT UNTIL MONDAY AFTERNOON FOR THE ROGUE RIVER NEAR AGNESS AFFECTING CURRY COUNTY COAST ZONE.
_______________
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.
________________
Forecast for the Southern and lower Mid Willamette Valley including Eugene-Springfield and Albany-Corvallis:
- Mostly cloudy with evening showers likely (70%) and a slight (20%) chance of thunderstorms, a good (50%) chance of showers late tonight (0.25 in. of rain possible, more in storms),
- Mostly cloudy with a good (50%) chance of showers and a bit cooler Monday (under 0.10 in. of rain possible), mostly cloudy with patchy fog Monday night,
- Mostly cloudy with patchy AM fog, rain likely (70%) and a bit cooler Tuesday afternoon , rain (0.25 in. of rain possible) at night (New Year’s Eve),
- Mostly cloudy and a bit warmer with rain Wednesday (New Year’s Day), then rain likely (70%) Wednesday night.
- lows 39-32 warming to 44 Wednesday night highs 47-44 warming to 49 Wednesday.
- Mostly cloudy and a bit warmer with showers Thursday, rain Thursday night,
- Mostly cloudy and slightly cooler with rain Friday, rain at night,
- Mostly cloudy and a bit cooler with showers Saturday, showers likely (70%) Saturday night,
- Then mostly cloudy and a bit cooler with showers likely (70%) Sunday.
- highs 53-49 lows 36-43. (seasonal averages high 46 low 34)
__________
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. Weather Forecast; Sunny 72 degrees warming to 75 then clear and cooling throughout the game.
________________
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)
________________
Forecast for the Umpqua Valley including Roseburg:
- Mostly cloudy with evening showers and snow and a slight (20%) chance of thunderstorms, rain and snow late tonight (0.10 in of rain possible),
- Cloudy with patchy AM fog and a good (50%) chance of rain and snow, a good (50%) chance of rain and a bit cooler Monday afternoon (under 0.10 in. of rain possible), partly cloudy with areas of fog late Monday night,
- Mostly cloudy with areas of AM fog, a slight (20%) chance of rain and a bit cooler Tuesday afternoon, evening rain and snow likely (70%), rain (0.10 in of rain possible) late at night (New Year’s Eve),
- Mostly cloudy and a bit warmer with showers Wednesday, then showers Wednesday night.
- lows 38-33 warming to 46 Wednesday night highs 48-46 warming to 52 Wednesday.
- Mostly cloudy and a bit warmer with showers Thursday, showers Thursday night,
- Mostly cloudy and a bit cooler with rain Friday and in the evening, showers late at night,
- Mostly cloudy and a bit cooler with showers Saturday, showers likely (70%) Saturday night,
- Then mostly cloudy with showers likely (70%) Sunday.
- highs 54-52 lows 46-43. (seasonal averages high 48 low 36)
____________
Forecast for The South Oregon Coast Including Coos Bay and North Bend:
- Mostly cloudy with evening coastal rain and a slight (20%) chance of thunderstorms while inland early evening showers, late evening rain continuing overnight (0.10 in. of rain possible),
- Cloudy and a bit cooler with a good (50%) chance of rain Monday (0.10 in. of rain possible), just partly cloudy Monday night,
- Mostly cloudy with patchy AM fog, a slight (20%) of coastal rain and a bit cooler Tuesday while a slight (20%) chance of inland AM rain and inland rain Tuesday, rain (0.25 bin. of rain possible) at night (New Year’s Eve),
- Mostly cloudy with showers and a bit warmer Wednesday, then showers Wednesday night.
- lows 39-35 warming to 46 Wednesday night highs 50-57.
- Mostly cloudy and a bit warmer with showers Thursday, showers Thursday night,
- Mostly cloudy with rain Friday, rain at night,
- Mostly cloudy and a bit cooler with showers Saturday, showers likely (70%) Saturday night,
- Then mostly cloudy with showers likely (70%) Sunday.
- highs 58-56 lows 48-45 (seasonal averages high 53 low 40)
_______________
Forecast for the Northern Oregon Cascades including the Cascades in Lane County:
- Mostly cloudy with showers likely (70%) and a slight (20%) chance of freezing rain, with snow showers likely (70%) tonight (0.50 in. of rain possible, 5-9 in. of snow possible, evening snow possibly heavy at times),
- Mostly cloudy and a bit cooler with freezing rain likely (70%) and a (40%) chance of AM showers, a good (50%) chance of snow showers Monday (0.10 in. of rain possible, 2 in. of snow possible, trace of ice accumulation possible), a slight (20%) chance of evening snow showers, partly cloudy late Monday night,
- AM clouds and sun, mostly cloudy and a bit warmer with a good (50%) chance of rain and snow Tuesday afternoon, snow and rain at night (New Year’s Eve),
- Mostly cloudy and a bit warmer with rain and snow (snow possibly heavy at times) Wednesday (New Year’s Day), then rain and snow Wednesday night.
- snow level 2,500 ft. tonight and Monday, free air freezing level at the surface Monday night, snow level 3,000 ft. Tuesday afternoon and Tuesday night, snow level 3,500 ft. Tuesday night, 4,500 ft. Wednesday, then 5,500 ft. Wednesday night.
- low 25-15 warming to 32 Wednesday night highs 28-33.
- Mostly cloudy and a bit warmer with rain and snow showers Thursday, rain Thursday night,
- Mostly cloudy and a bit cooler with rain and snow Friday and at night,
- Mostly cloudy and a bit cooler with rain and snow showers Saturday, rain and snow showers likely (70%) Saturday night,
- Then mostly cloudy and a bit warmer with rain and snow showers likely (70%) Sunday.
- snow level 6000 ft. Thursday, 7,000 ft. Thursday night, 6,000 ft. Friday, 4,500 ft. Friday night, 4,000 ft. Saturday and Saturday night, then 5,000 ft. Sunday.
- highs 36-32 warming to 35 Sunday lows 33-28.