Dec
11.
Here is my weekly weather quiz question. What is a “Tornado Vortex Signature “?
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An (“U” shape) is moving toward the Pacific Northwest. The graphics for days 1-3 show one frontal system moving through the Pacific Northwest and another wetter system following behind it. The graphics for days 3-7 Saturday through Wednesday show a complex frontal system will be pushing into the coast Saturday and Saturday night, then a frontal system will be marching through Monday and Monday night with a complex frontal system just offshore next Wednesday.
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 74 in the Moderate category measuring Particulate Matter.
Oakridge: The Air Quality Index is 58 in the Moderate category measuring Particulate Matter.
Cottage Grove: The Air Quality Index is 78 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 WATCH IS IN EFFECT FROM FRIDAY MORNING THROUGH FRIDAY EVENING FOR THE SOUTH CENTRAL OREGON COAST AND THE CURRY COUNTY COAST.
- A WINTER WEATHER ADVISORY IS IN EFFECT FROM 10 PM TONIGHT UNTIL NOON THURSDAY FOR THE FOOTHILLS OF THE NORTHERN BLUE MOUNTAINS OF OREGON AND FOR THE FOOTHILLS OF THE SOUTHERN BLUE MOUNTAINS OF OREGON.
- A WINTER WEATHER ADVISORY IS IN EFFECT FROM 10 PM TONIGHT UNTIL NOON THURSDAY FOR NORTH CENTRAL OREGON.
- AN AIR STAGNATION ADVISORY IS IN EFFECT UNTIL 2 PM MST THURSDAY FOR HARNEY COUNTY, BAKER COUNTY, MALHEUR COUNTY, AND THE OREGON LOWER TREASURE VALLEY.
- A WIND ADVISORY IS IN EFFECT FROM 7 PM THIS EVENING UNTIL 4AM THURSDAY FOR THE ROGUE VALLEY OF JACKSON COUNTY.
- A HIGH WIND WATCH IS IN EFFECT FROM FRIDAY MORNING THROUGH FRIDAY EVENING 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:
- Cloudy with rain tonight (0.25 in. of rain possible),
- Mostly cloudy with a good (50%) of AM rain, a mix of clouds and sun and warmer with rain likely (70%) Thursday (0.10 in. of rain possible), rain likely (70%) Thursday night (under 0.10 in. of rain possible),
- Mostly cloudy with rain Friday (under 0.10 in. of rain possible), rain at night (0.50 in. of rain possible),
- Mostly cloudy and a bit cooler with rain Saturday, then showers Saturday night.
- lows 42-44 cooling to 43 Friday night cooling to 37 Saturday night highs 52-50.
- A mix of clouds and sun and a bit cooler with a good (50%) chance of showers Sunday, a good (50%) chance of rain Sunday night,
- Mostly cloudy and a bit cooler with rain likely (70%) Monday, cloudy with rain likely (70%) at night,
- Mostly cloudy and a bit warmer with a (40%) chance of rain Tuesday, a slight (20%) chance of rain Tuesday night,
- Mostly cloudy and a bit cooler with a (30%) chance of rain Wednesday.
- highs 48-45 warming to 49 Tuesday cooling to 48 Wednesday lows 36-38 cooling back to 36 Tuesday night. (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 with evening rain, showers late tonight (0.10 in. of rain possible),
- Mostly cloudy with AM showers, a good (50%) chance of showers and a bit cooler Thursday afternoon (under 0.10 in. of rain possible), a (30%) chance of evening showers, a (30%) chance of rain late Thursday night (under 0.10 in. of rain possible),
- Mostly cloudy with rain Friday (0.10 in. of rain possible), rain at night (0.50 in. of rain possible, snow level 3,500 ft. late at night),
- Mostly cloudy and a bit cooler with showers Saturday, evening rain, then a good (50%) chance of rain and snow late Saturday night.
- lows 42-39 warming back to 42 Friday night cooling back to 39 Saturday highs 52-49.
- Mostly cloudy with a good (50%) chance of AM rain and snow, a bit cooler with a slight (20%) chance of rain Sunday afternoon, a (30%) chance of evening rain, a (30%) of rain and snow late Sunday night,
- Mostly cloudy with rain Monday, evening rain likely (70%), a good (50%) chance of rain late at night,
- Mostly cloudy with a (30%) chance of rain and a bit warmer Tuesday, a slight (20%) chance of rain Tuesday night,
- Then mostly cloudy with a (30%) chance of rain Wednesday.
- highs 48-50 lows near 38. (seasonal averages high 48 low 37)
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Forecast for The South Oregon Coast Including Coos Bay and North Bend:
- Mostly cloudy evening coastal showers and a slight (20%) chance of thunderstorms with coastal showers late tonight while early evening inland showers and late evening inland rain with inland showers late tonight (0.25 in. of rain possible), Breezy (Coastal wind: S 15-25 mph decreasing to s 10-15 mph late tonight while Inland Wind: S 10-15 mph).
- Mostly cloudy with AM showers, a bit cooler with a showers likely (70%) Thursday afternoon (under 0.10 in. of rain possible), cloudy with a good (50%) chance of evening showers, rain late Thursday night (under 0.10 in. of rain possible) ,
- Mostly cloudy with rain (0.10 in. of rain possible) and a bit cooler and windy Friday (Coastal Wind: S 20-30 mph and late morning-early afternoon gusts to 45 mph while Inland Wind: S 20-30 mph decreasing to S 10-20 mph late afternoon and late morning-early afternoon gusts to 45 mph), rain (1.00 in. of rain possible) at night and breezy (Wind: S 15-25 mph gusts to 40 mph decreasing to S 10-15 mph late at night),
- Mostly cloudy and a bit cooler with showers Saturday, evening rain, then a (%) chance of rain late Saturday night.
- lows 47-43 42 warming to 44 Friday night cooling to 40 Saturday night highs 56-54.
- Mostly cloudy with a (40%) chance of rain Sunday and Sunday night,
- Mostly cloudy with rain Monday and in the evening, a good (50%) chance of rain late at night,
- Mostly cloudy and a bit warmer with a (40%) chance of rain Tuesday, a (30%) chance of rain Tuesday night,
- Then mostly cloudy with a (30%) chance of rain Wednesday.
- highs 52-54 lows 44-42. (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, snow and freezing rain tonight (0.25 in. of rain possible, 2 in. of snow possible, a trace accumulation of ice possible),
- Mostly cloudy with rain and snow likely (70%) and freezing rain and a bit cooler Thursday (0.25 in. of rain possible, 2 in. of snow possible), evening rain and snow likely (70%) and freezing rain likely (70%), a good (50%) of rain and snow and freezing rain Thursday night (0.10 in. of rain possible, little or no snow accumulation expected, trace of ice accumulation possible),
- Mostly cloudy with AM rain, snow likely (70%) with freezing rain, rain and snow Friday afternoon, rain and snow Friday night,
- Mostly cloudy and a bit cooler with rain and snow (snow possibly heavy at times) Saturday, then snow and rain showers Saturday night.
- snow level 4,500 ft. tonight, 4,000 ft. Thursday and Thursday night, 4,000 ft. rising to 5,000 ft. Friday afternoon, 4,500 ft Friday night, 4,000 ft. Saturday, then 3,500 ft. Saturday night.
- lows 28-25 warming to 30 Thursday night cooling to 24 Saturday night highs 34-33.
- A mix of clouds and sun and a bit cooler with a good (50%) chance of snow and rain showers Sunday, a good (50%) chance of snow and rain Sunday night,
- Mostly cloudy with snow and rain Monday, rain and snow likely (70%) at night,
- A mix of clouds and sun and a bit warmer with a good (50%) chance of rain and snow Tuesday, a slight (20%) chance of rain and snow Tuesday night,
- Then a mix of clouds and sun and a bit warmer with a (40%) chance of rain and snow Wednesday.
- snow level 2,500 ft. Sunday, 3,500 ft. Sunday night, 4,000 ft. Monday and Monday night, 4,500 ft. Tuesday, 5,000 ft. Tuesday night, then 6,000 ft. Wednesday.
- highs 32-39 lows 23-25 cooling back to 23 Tuesday night.