An Upper Level High Pressure Ridge (“Arch” shape) is building up toward the coast bringing a lengthy dry spell. The graphics for days 1-3 show a weak cold front pushing into the Willamette Valley Wednesday. The graphics for days 3-7 Thursday through Monday show a complex frontal system will be moving past the Pacific Northwest Thursday. Another front will push into Oregon next Sunday and Sunday night.
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ADVISORIES:
- NONE AT THIS TIME.
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 clear tonight,
- Sunny and a bit warmer Tuesday, mostly clear Tuesday night,
- Mostly sunny and cooler Wednesday, partly cloudy at night,
- Sunny and a bit cooler Thursday, then mostly clear Thursday night.
- lows 42-55 cooling to to 40 Thursday night highs 79-68.
- Sunny and a bit warmer Friday, partly cloudy Friday night,
- A mix of clouds and sun and a bit cooler Saturday, mostly cloudy at night,
- A mix of clouds and sun and a bit cooler with a good (50%) chance of rain Sunday, mostly cloudy with a good (50%) chance of rain Sunday night,
- Then a mix of clouds and sun and a bit cooler with a (50%) chance of rain Monday.
- highs 75-62 lows 40-45 cooling to 43 Sunday night. (seasonal averages high 66 low 43).
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HOME WOOD HEATING ADVISORY:
The Eugene & Springfield: GREEN– Fireplace and wood stove used is allowed. Protect air quality by not heating with wood when possible.
Oakridge And Westfir: GREEN– Fireplace and wood stove used is allowed. Protect air quality by not heating with wood when possible.
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 clear tonight,
- Sunny and a bit a bit warmer Tuesday, mostly clear Tuesday night,
- Sunny and a bit cooler Wednesday, partly cloudy at night,
- Mostly sunny and and a bit cooler Thursday, then mostly clear Thursday night.
- lows 45-47 cooling back to 45 Thursday night highs 83-73.
- Mostly sunny and a bit warmer Friday, partly cloudy Friday night,
- Partly cloudy and a bit cooler Saturday, partly cloudy in the evening, mostly with a slight (20%) chance of rain late at night,
- Partly cloudy and cooler with a (30%) chance of rain Sunday afternoon, mostly cloudy with a (40%) chance of rain Sunday night,
- Then mostly cloudy and a bit cooler with a (40%) chance of rain Monday.
- highs 82-64 lows 48-46. (seasonal averages high 69 low 46).
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Forecast for The South Oregon Coast Including Coos Bay and North Bend:
- Mostly clear tonight,
- Sunny and warmer Tuesday, partly cloudy with patchy fog late Tuesday night,
- Mostly cloudy with patchy AM coastal fog, partly cloudy and cooler Wednesday afternoon, mostly cloudy in the evening, mostly clear late at night,
- Mostly sunny and a bit warmer Thursday, then mostly clear Thursday night.
- lows 44-46 cooling to 42 Wednesday night and Thursday night highs 70-60 warming to 62 Thursday.
- Mostly sunny and a bit warmer Friday, partly cloudy in the evening, mostly cloudy with patchy fog late Friday night,
- Mostly cloudy start, partly cloudy and a bit cooler Saturday afternoon, mostly cloudy with a slight (20%) chance of rain and patchy fog late at night,
- Patchy AM fog, mostly cloudy with a (40%) chance of rain and a bit cooler Sunday, a (20%) chance of rain Sunday night,
- Then mostly cloudy with a (40%) chance of rain Monday.
- highs 65-60 lows 43-45 cooling to back to 43 Sunday night.
- (seasonal averages high 59 low 47). _______________
Forecast for the Northern Oregon Cascades including the Cascades in Lane County:
- Mostly clear tonight,
- Sunny and a bit warmer Tuesday, mostly clear Tuesday night,
- Sunny and a bit cooler Wednesday, mostly cloudy with a (30%) chance of evening rain, partly cloudy late at night,
- Sunny and a bit cooler Thursday, then mostly clear Thursday night,
- free air freezing level 11,000 ft. rising to 12,000 ft. late tonight, 12,000 ft. Tuesday and Tuesday night, 11,000 ft. Wednesday, snow level 7,500 ft. Wednesday evening, free air freezing level 10,000 ft. Thursday, then 11,000 ft. Thursday night.
- lows 36-40 cooling to 38 Wednesday night highs 60-68 cooling to 65 Wednesday.
- Sunny and a bit warmer Friday, mostly clear in the evening, partly cloudy late Friday night,
- Mostly sunny and a bit cooler Saturday, mostly cloudy with with a slight (20%) chance of rain at night,
- A mix of clouds and sun and cooler with a good (50%) chance of rain and snow Sunday, mostly cloudy with a good (50%) chance of rain and snow Sunday night,
- Then a mix of clouds and sun and a bit cooler with a good (50%) chance of rain and snow Monday.
- free air freezing level 12,000 ft. Friday, 13,000 ft. Friday night, 12,000 ft. Saturday, snow level 7,500 ft. Saturday night, 6,500 ft. Sunday, 5,500 ft. Sunday night, then 5,000 ft. Monday.
- highs 63-72 cooling to 60 Friday warming to 68 Friday cooling to 66 Saturday lows 42-40.