Jan
10.
An Upper Level High Pressure Ridge (“Arch” shape) is tilting eastward and weakening allowing frontal movement into the Pacific Northwest. The graphics for days 1-3 show cold front sliding through today and tonight. The graphics for days 3-7 Monday through Friday show the no frontal activity through the period until a cold front a cold front pushes into the Pacific Northwest next Friday.
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Air Quality Index:
Eugene/Springfield: The Air Quality Index is 21 in the Good category measuring Particulate Matter.
Oakridge: The Air Quality Index is 19 in the Good category measuring Particulate Matter.
Cottage Grove: The Air Quality Index is 18 in the Good 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 UNTIL 10 AM SATURDAY FOR THE NORTHERN BLUE MOUNTAINS OF OREGON.
- A WIND ADVISORY IS IN EFFECT UNTIL 1 AM SATURDAY FOR THE FOOTHILLS OF THE NORTHERN BLUE MOUNTAINS OF OREGON AND THE FOOTHILLS OF THE SOUTHERN BLUE MOUNTAINS OF OREGON.
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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 patchy fog and a slight (20%) chance of showers late tonight,
- AM clouds and sun with patchy fog and frost, a mix of clouds and sun and a bit cooler Saturday afternoon, mostly cloudy with patchy fog and frost and a light (20%) chance of showers late Saturday night,
- Mostly cloudy with patchy fog and a slight (20%) chance of AM showers, a mix of clouds and sun with a slight (20%) of showers Sunday afternoon, partly cloudy with patchy evening frost, patchy fog with areas of frost late at night,
- Mostly sunny and a bit cooler with widespread frost and patchy fog Monday, mostly clear in the evening, then partly cloudy late Monday night.
- lows 38-32 highs 52-47. .
- Sunny Tuesday, mostly clear Tuesday night,
- Sunny and a bit warmer Wednesday, mostly clear in the evening, partly cloudy late at night,
- Mostly sunny and a bit warmer with a slight (20%) chance of rain Thursday, partly cloudy with a slight (20%) chance of showers Thursday night,
- Then a mix of clouds and sun with a slight (20%) chance of rain and snow Friday.
- highs 44-46 lows near 30 (seasonal averages high 48 low 35)
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HOME WOOD HEATING ADVISORY:
Eugene & Springfield: GREEN – The burning wood is allowed.
Oakridge: 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 evening showers, just patchy fog late tonight,
- Mostly cloudy with patchy AM fog, just mostly cloudy and a bit cooler Saturday afternoon, patchy evening fog, mostly cloudy with areas of fog late Saturday night,
- Mostly cloudy with areas of AM fog, partly cloudy Sunday afternoon, partly cloudy with patchy evening fog, areas of fog and freezing fog late at night,
- Mostly clear with areas of AM fog and freezing fog, sunny and a bit cooler Monday afternoon, mostly clear with patchy evening freezing fog, then areas of fog and freezing fog late Monday night.
- lows 39-32 highs 47-45.
- Mostly sunny with areas of AM fog and freezing fog, sunny and a bit cooler Tuesday afternoon, mostly clear with patchy evening freezing fog, areas of freezing fog late Tuesday night,
- Sunny with areas of AM fog and freezing fog, sunny and a bit warmer with patchy fog Wednesday afternoon, mostly clear with patchy evening freezing fog, mostly clear with areas of fog and freezing fog late at night,
- Partly cloudy with patchy AM freezing fog, sunny and a bit warmer Thursday afternoon, partly cloudy Thursday night,
- Then partly cloudy Friday.
- highs 44-47 lows 32-34. (seasonal averages high 50 low 37)
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Forecast for The South Oregon Coast Including Coos Bay and North Bend:
- Mostly cloudy tonight,
- Partly cloudy Saturday, partly cloudy Saturday night,
- Partly cloudy Sunday and in the evening, mostly clear at night,
- Mostly sunny Monday, then mostly clear Monday night.
- lows 39-33 warming to 35 Monday night highs 52-55.
- Mostly sunny and a bit warmer Tuesday, mostly clear Tuesday night,
- Sunny and a bit cooler Wednesday, mostly clear in the evening, partly cloudy at night,
- Partly cloudy and a bit cooler Thursday, partly cloudy Thursday night,
- Then partly cloudy Friday.
- highs 58-52 lows near 36 (seasonal averages high 53 low 41)
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Forecast for the Northern Oregon Cascades including the Cascades in Lane County:
- Mostly cloudy with a good (50%) chance of evening showers and snow showers, a slight (20%) chance of showers and snow showers late tonight (0.10 in. of rain possible, 2 in. of snow possible),
- A mix of clouds and sun with a slight (20%) chance of AM snow showers, a mix of clouds and sun and cooler Saturday afternoon, partly cloudy with a (40%) chance of snow showers late Saturday night,
- Mostly sunny with a slight (20%) chance of AM snow showers, mostly sunny and a bit warmer Sunday afternoon, partly cloudy in the evening, becoming mostly clear late at night,
- Sunny and a bit warmer Monday, then mostly clear Monday night.
- snow level 3,000 ft. tonight, 2,500 ft. Saturday, 2,000 ft. Saturday night, 2,500 ft. Sunday, 3,500 ft. falling to the surface late Sunday night, 7,000 ft. Monday, then 9,000 ft. Monday night.
- low 24-18 warming to 20 Monday highs 28-33.
- Sunny and a bit warmer Tuesday and Wednesday, mostly clear both nights,
- Sunny and a bit cooler Thursday, mostly cloudy with a slight (20%) chance of rain and snow Thursday night,
- Then mostly sunny and a bit cooler with a slight (20%) chance of snow and rain Friday.
- free air freezing level 9,000 ft. Tuesday, 8,000 ft. Tuesday night, 10,000 ft. Wednesday, 7,500 ft. Wednesday night, snow level 4,000 ft. Thursday, 3,000 ft. Thursday night, then 2,500 ft. Friday.
- highs 39-42 cooling to 33 Friday lows near 23.