An Upper Level High Pressure Ridge (“Arch” shape) is moving in to bring us dry sunshiny days and chilly nights for the Pacific Northwest. The graphics for days 1-3 show no frontal systems through the period. The graphics for days 3-7 Wednesday through Sunday show the no frontal activity through the period until a relatively dry cold front pushes into the Pacific Northwest between Thursday and Friday and a stationary front snakes along the entire West Coast next Sunday.
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ADVISORIES:
- A BEACH HAZARDS STATEMENT FOR DANGEROUS SNEAKER WAVES IS IN EFFECT FROM SUNDAY AFTERNOON THROUGH MONDAY MORNING 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.
Forecast for the Southern and lower Mid Willamette Valley including Eugene-Springfield and Albany-Corvallis:
- Patchy AM fog, a mix of clouds and sun and a bit cooler this afternoon, partly cloudy with patchy evening frost, areas of frost with patchy dense fog late tonight,
- Widespread AM frost with patchy dense fog, mostly sunny and a bit cooler Monday afternoon, partly cloudy with widespread frost late at night,
- Widespread AM frost with patchy dense fog, mostly sunny and a bit cooler Tuesday afternoon, then mostly clear Tuesday night.
- highs 47-42 lows 37-30. .
- Sunny and a bit warmer Wednesday, mostly clear Wednesday night.
- Mostly sunny and a bit warmer Thursday, partly cloudy at night,
- Mostly sunny and a bit cooler with a slight (20%) chance of rain and snow Friday, partly cloudy with a slight (20%) chance of rain and snow Friday night (snow level 1,500 ft.),
- Then mostly sunny with a slight (20%) chance of rain and snow and a bit cooler Saturday (snow level 500 ft.).
- highs 44-46 cooling to 42 Saturday lows 32-29 (seasonal averages high 48 low 35)
HOME WOOD HEATING ADVISORY:
Eugene & Springfield: GREEN – The burning of wood is allowed.
Oakridge: GREEN – The burning of 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 areas of AM fog, mostly cloudy this afternoon, mostly cloudy with patchy evening fog, areas of fog and freezing fog late tonight,
- Some AM clouds with areas of AM fog and freezing fog, sunny and a bit cooler Monday afternoon, mostly clear with patchy evening freezing fog, areas of fog and freezing fog late at night,
- Areas of AM fog and freezing fog, sunny and a bit cooler Tuesday afternoon, mostly clear with patchy evening freezing fog, then areas of freezing fog late Tuesday night.
- highs 46-43 warming to 47 Tuesday lows near 32.
- Sunny with areas of AM fog and freezing fog, sunny and a bit warmer Wednesday afternoon, mostly clear with patchy evening freezing fog, mostly clear with areas of fog and freezing fog late Wednesday night,
- Patchy AM fog and freezing fog, sunny and a bit warmer Thursday afternoon, partly cloudy at night,
- Sunny Friday, partly cloudy Friday night,
- Some AM clouds, then sunny Saturday afternoon.
- highs 50-43 lows near 32. (seasonal averages high 50 low 37)
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Forecast for The South Oregon Coast Including Coos Bay and North Bend:
- Partly cloudy start, mostly cloudy and a bit warmer this afternoon and this evening, mostly clear tonight,
- Sunny and a bit warmer Monday, clear at night,
- Sunny Tuesday, then mostly clear Tuesday night.
- highs 52-56 lows 33-36.
- Sunny and a bit warmer Wednesday, mostly clear Wednesday night,
- Mostly sunny and a bit cooler Thursday, partly cloudy at night,
- Mostly sunny and a bit cooler Friday, mostly clear Friday night,
- Then sunny and a bit cooler Saturday.
- highs 58-49 lows 36-34 (seasonal averages high 53 low 41)
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Forecast for the Northern Oregon Cascades including the Cascades in Lane County:
- Mostly sunny and a bit warmer today, partly cloudy in the evening, becoming mostly clear late tonight,
- Sunny and a bit warmer Monday, mostly clear at night,
- Sunny and a bit warmer Tuesday, mostly clear Tuesday night.
- free air freezing level 3,500 ft. today, 3,500 ft. falling to the surface late tonight, 4,500 ft. rising to 9,000 ft. Monday afternoon, 10,000 ft, falling t0 9,000 ft. late Monday night, then 11,000 ft. Tuesday and Tuesday night.
- highs 32-42 low 20-28.
- Sunny and a bit warmer Wednesday, clear Wednesday night,
- Sunny and a bit cooler Thursday, partly cloudy with a slight (20%) chance of snow at night,
- A mix of clouds and sun and a bit cooler with a (30%) chance of snow Friday, partly cloudy with a (30%) chance of snow Friday night,
- Then a mix of clouds and sun and a bit cooler with a (30%) chance of snow Saturday.
- free air freezing 12,000 ft. Wednesday, 11,000 ft. Wednesday night, 10,000 ft. Thursday, snow level 2,500 ft. Thursday night, 2,500 ft. Friday, then at the surface Friday night and Saturday.
- highs 39-42 cooling to 33 Friday lows near 23.