Dec
12.
Here is my weekly weather quiz question. What is a “Tornado Vortex Signature “?
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An Upper Level Low Pressure Trough (“U” shape) is moving toward the Pacific Northwest. The graphics for days 1-3 show a frontal system moving through the Pacific Northwest Friday and Saturday. The graphics for days 3-7 Monday through Friday show 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.
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Air Quality Index:
Eugene/Springfield: The Air Quality Index is 95 in the Moderate category measuring Particulate Matter.
Oakridge: The Air Quality Index is 52 in the Moderate category measuring Particulate Matter.
Cottage Grove: The Air Quality Index is 74 in the Moderate category measuring Particulate Matter.
Data courtesy of Lane Regional Air Protection Agency (LRAPA.org)
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ADVISORIES:
- A HIGH WIND WARNING IS IN EFFECT FROM 7 AM UNTIL 7 PM TODAY FOR THE SOUTH CENTRAL OREGON COAST AND THE CURRY COUNTY COAST.
- AN AIR STAGNATION ADVISORY IS IN EFFECT UNTIL 2 PM TODAY FOR THE OREGON LOWER TREASURE VALLEY.
- A WIND ADVISORY IS IN EFFECT FROM 4 PM TODAY UNTIL 7 AM SATURDAY FOR NORTHERN AND EASTERN KLAMATH COUNTY AND WESTERN, CENTRAL AND EASTERN LAKE COUNTY.
- A WIND ADVISORY IS IN EFFECT FROM 7 AM UNTIL 10 PM TODAY FOR THE ROGUE VALLEY OF JACKSON COUNTY.
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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 a (30%) chance of AM rain, a bit warmer with rain this afternoon (0.25 in. of rain possible), rain tonight (0.50 in. of rain possible),
- Mostly cloudy and a bit cooler with showers Saturday (0.25 in. of rain possible), showers at night (under 0.10 in. of rain possible),
- A mix of clouds and sun and a bit cooler with a slight (20%) chance of showers Sunday, then cloudy with a (40%) chance of rain Sunday night.
- highs 52-47 lows 43-36.
- Mostly cloudy and a bit cooler with rain likely (70%) Monday, cloudy with rain Monday night,
- Mostly cloudy and a bit warmer with a good (50%) chance of rain Tuesday, a slight (20%) chance of rain at night,
- Mostly cloudy with a (30%) chance of AM rain, partly cloudy with a (30%) chance of rain Wednesday, a slight (20%) chance of rain Wednesday night,
- Mostly cloudy with a (30%) chance of AM rain, then a mix of clouds and sun and a bit cooler with a (30%) chance of rain Thursday afternoon.
- highs 46-50 cooling to 48 Thursday lows 40-37. (seasonal averages high 47 low 34)
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Your College Football Weather Forecast:
Wednesday January 1, 2025:
The Ducks will play either #8 Ohio State or #9 Tennessee in the Rose Bowl, Pasadena, California: Game time to be announced. Way 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 and a bit cooler with rain (under 0.10 in. of rain possible) today, rain tonight (0.50 in. of rain possible, snow level 3,500 ft. late tonight),
- Mostly cloudy and a bit cooler with rain (0.25 in. of rain possible)Saturday (snow level 3,500 ft.), evening showers, a good (50%) chance of rain and snow showers late Saturday night (under 0.10 in. of rain possible),
- Partly cloudy with a slight (20%) chance of AM rain, just mostly cloudy a bit cooler Sunday afternoon, mostly cloudy a (40%) of rain Sunday night.
- highs 53-47 lows 43-36 Saturday night warming to 30 Sunday night.
- Mostly cloudy with rain Monday, rain likely (70%), Monday night,
- Mostly cloudy with a (40%) chance of rain and a bit warmer Tuesday, a slight (20%) chance of rain at night,
- Mostly cloudy with slight (20%) chance of rain Wednesday, a slight (20%) chance of rain Wednesday night,
- Then mostly cloudy and a bit warmer with a slight (20%) chance of rain Thursday.
- highs 47-53 lows 42-39. (seasonal averages high 48 low 37)
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Forecast for The South Oregon Coast Including Coos Bay and North Bend:
- Mostly cloudy with rain (0.10 in. of rain possible) and a bit cooler and windy today (Wind: S 20-30 mph gusts to 45 mph), rain (0.10 in. of rain possible) tonight,
- Mostly cloudy and a bit cooler with rain Saturday (0.25 in. of rain possible), evening showers, a good (50%) chance of coastal showers late at night while inland showers likely (70%) late at night (0.10 in. of rain possible),
- Some AM clouds with a slight (20%) chance of rain, mostly cloudy and a bit cooler with a slight (20%) chance of rain Sunday and in the evening, then rain likely (70%) late Sunday night.
- highs 58-52 lows 43-38 warming to 42 Sunday night.
- Mostly cloudy with rain Monday and in the evening, rain likely (70%) late Monday night,
- Mostly cloudy and a bit warmer with a good (50%) chance of rain Tuesday, a (30%) chance of rain at night,
- Mostly cloudy with a (30%) chance of rain and a bit warmer Wednesday, a slight (20%) chance of rain Wednesday night,
- Then mostly cloudy and a bit warmer with a slight (20%) chance of rain Thursday.
- highs 53-62 lows near 44. (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 rain and snow with a slight (20%) chance of freezing rain, rain and snow and freezing rain this afternoon (0.25 in. of snow possible, 1 in. of snow possible), evening freezing rain, rain and snow tonight (0.75 in. of rain possible, 1-4 in. of snow possible, trace of ice accumulation possible),
- Mostly cloudy and a bit cooler with rain and snow showers Saturday, snow and rain showers at night,
- A mix of clouds and sun and a bit cooler with a good (50%) chance of snow showers Sunday, then a (40%) chance of snow and rain Sunday night.
- snow level 4,500 ft. rising to 5,500 ft. this afternoon, 4,000 ft. tonight and Saturday, 2,500 ft. Saturday night and Sunday, then 3,500 ft. Sunday night.
- highs 35-32 lows 30-23 warming to 25 Sunday night.
- Mostly cloudy and a bit warmer with rain and snow Monday, rain and snow likely (70%) Monday night,
- Mostly cloudy and a bit warmer with a good (50%) chance of rain and snow Tuesday, a slight (20%) chance of rain and snow at night,
- A mix of clouds and sun and a bit warmer with a (40%) chance of rain and snow Wednesday, partly cloudy with a slight (20%) chance of evening rain, mostly cloudy with a slight (20%) chance of rain Wednesday night,
- Then mostly sunny with a (30%) chance of rain and a bit warmer Thursday.
- snow level 4,000 ft Monday, 4,500 ft. Monday night, 5,000 ft. Tuesday, 5,500 ft. Tuesday night, 6,500 ft. Wednesday, then 7,000 ft. Wednesday night and Thursday.
- highs 33-40 lows 25-27.