Dec
21.
Here is my weekly weather quiz question. What is a “Tropical Storm Warning “?
An Upper Level Low Pressure Trough (“U” shape) continues sending surface fronts over Pacific Northwest. The graphics for days 1-3 show a complex frontal moving through Oregon between with another one following behind it. The graphics for days 3-7 Tuesday through Saturday show the parade of frontal activity continuing through the period.
Note: Ski Report: Willamette Pass (closed Tuesdays and Wednesdays), Hoodoo (closed Tuesdays and Wednesdays), and Mt. Ashland (closed Tuesday and Wednesday) 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 18 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 19 in the Good category measuring Particulate Matter.
Data courtesy of Lane Regional Air Protection Agency (LRAPA.org)
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ADVISORIES:
- A WIND ADVISORY IS IN EFFECT FROM 10 AM UNTIL 5 PM SUNDAY FOR JACKSON COUNTY.
- A HIGH SURF ADVISORY IS IN EFFECT UNTIL 10 PM MONDAY FOR THE CLATSOP COUNTY COAST AND THE TILLAMOOK COUNTY COAST.
- A HIGH SURF ADVISORY IS IN EFFECT FROM UNTIL 10 PM SUNDAY FOR THE THE SOUTH CENTRAL OREGON COAST AND THE CURRY COUNTY COAST.
- A HIGH SURF WARNING IS IN EFFECT FROM 10 PM SUNDAY UNTIL 10 PM MONDAY FOR THE 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 a (40%) chance of evening showers and a slight (20%) chance of thunderstorms, cloudy with a (40%) chance of showers late tonight (under 0.10 in. of rain possible),
- Mostly cloudy and a bit cooler with rain and patchy fog Sunday afternoon (0.25 in. of rain possible), showers with patchy fog late Sunday night (0.25 in. of rain possible),
- A mix of clouds and sun with patchy AM fog, mostly cloudy and a bit warmer with a slight (20%) chance of rain Monday afternoon, rain at night,
- Mostly cloudy and a bit cooler with rain Tuesday, then a good (50%) chance of rain Tuesday night (Christmas Eve).
- lows 45-47 highs 53-55 cooling to 52 Tuesday.
- Mostly cloudy and a bit cooler with rain likely (70%)Wednesday (Christmas Day), rain Wednesday night,
- Mostly cloudy and a bit warmer with rain Thursday through Saturday, rain each night,
- Mostly cloudy and a bit warmer with rain Friday and Friday night,
- Then mostly cloudy and a bit warmer with rain Saturday.
- highs 49-54 lows 45-47. (seasonal averages high 46 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: 2 pm. 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 a slight (20%) chance of early evening thundershowers, a (30%) chance of showers late tonight (under 0.10 in. of rain possible),
- Mostly cloudy with a good (50%) chance of AM rain, a bit warmer with rain and a slight (20%) chance of thunderstorms Sunday afternoon (0.10 in. of rain possible), a (40%) chance of evening showers and a slight (20%) of thunderstorms, chance of rain late Sunday night (0.10 in. of rain possible),
- Mostly cloudy with a good (50%) chance of AM showers, rain and a bit warmer Monday afternoon, rain at night (0.50 in. of rain possible),
- Mostly cloudy with showers and a bit cooler Tuesday, then a (40%) chance of showers Tuesday night with patchy fog late (Christmas Eve).
- lows 44-43 warming to 45 Monday night cooling to 40 Tuesday night highs 55-56 cooling to 52 Tuesday.
- Mostly cloudy with a good (50%) chance of AM showers, showers likely (70%) and a bit cooler Wednesday afternoon (Christmas Day), showers Wednesday night,
- Mostly cloudy and a bit warmer with showers Thursday, showers Thursday night,
- Mostly cloudy and a bit warmer with showers Friday and Friday night,
- Then mostly cloudy with showers Saturday.
- highs 50-54 lows 45-47. (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 a slight (20%) chance of early evening thunderstorms, a (40%) chance of showers tonight (under 0.10 in. of rain possible),
- Mostly cloudy with AM rain, a bit warmer with showers and a slight (20%) chance of thunderstorms Sunday afternoon (0.10 in. of rain possible), a (30%) chance of evening showers and a slight (20%) chance of thunderstorms, a (30%) chance of showers late Sunday night (0.10 in. of rain possible),
- Mostly cloudy with AM coastal showers likely (70%) while a good (50%) chance of inland AM showers, rain and a bit warmer Monday afternoon (under 0.10 in. of rain possible), rain at night (0.75 in. of rain possible),
- Mostly cloudy with showers and a bit cooler Tuesday, then a (40%) chance of showers Tuesday night (Christmas Eve).
- lows 45-43 warming back to 45 Monday night cooling to 42 Tuesday night highs 59-60 cooling to 55 Tuesday.
- Mostly cloudy with a good (50%) chance of AM showers, showers and a bit warmer Wednesday afternoon (Christmas Day), showers Wednesday night,
- Mostly cloudy and a bit warmer with showers Thursday and at night,
- Then mostly cloudy and a bit warmer with showers Friday and Saturday, showers Friday night,
- highs 56-59 lows near 46. (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 early evening rain and snow showers likely (70%), a good (50%) chance of late evening rain and snow showers late tonight (0.10 in. of rain possible, 1 in. of snow possible),
- Mostly cloudy with AM rain likely (70%) and a slight (20%) chance of snow, rain and a bit cooler Sunday afternoon (0.50 in. of rain possible, little or no snow accumulation expected), showers with patchy evening fog, rain and snow showers snow late Sunday night (0.50 in. of rain possible, 1 in. of snow possible ),
- Mostly sunny with a good (50%) chance of AM rain, mostly cloudy with rain and snow likely (70%) Monday afternoon, rain at night with snow late at night (snow possibly heavy at times),
- Mostly cloudy with rain and snow and a bit cooler Tuesday, then a slight (20%) chance of rain and snow Tuesday night (Christmas Eve).
- snow level 4,500 ft. tonight, 5,500 ft. rising to 7,500 ft. Sunday afternoon, 6,500 ft. falling to 5,000 ft. Sunday night, 5,000 ft. rising to 6,500 ft. Monday, 8,000 ft. 8,000 ft. falling to 7,000 ft. Monday night, 4,500 ft. Tuesday, then 3,500 ft. Tuesday night.
- lows 28-32 cooling to 24 Tuesday night highs 39-35.
- Mostly cloudy and a bit cooler with snow with rain likely (70%) Wednesday (Christmas Day), rain and snow Wednesday night,
- Mostly cloudy and a bit warmer with rain and snow Thursday (snow may be heavy at times), rain and snow at night (snow may be heavy at times),
- Mostly cloudy with rain and snow Friday and Friday night,
- Then a bit cooler with rain and snow Saturday.
- snow level 3,500 ft. Wednesday, 5,500 ft. Wednesday night, 5,000 ft. Thursday and Thursday night, 5,500 ft. Friday,6,000 ft. Friday night, then 6,000 ft. Saturday.
- highs 34-38 lows near 32.