An Upper Level Low Pressure Trough (“U” shape) helps a frontal system push into and through the Pacific Northwest. The graphics for days 1-3 show a frontal system moving onshore between Monday and Tuesday. The graphics for days 3-7 Wednesday through Sunday show a frontal activity trying to back into the Pacific Northwest from the Northeast.
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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SKI REPORT:
Willamette Pass Ski: Is closed until better snow conditions for Spring skiing.
Hoodoo Ski: Is closed until better snow conditions for Spring skiing.
Mt. Ashland Ski: IS CLOSED FOR THE SEASON.
Be sure to check their web pages for the latest updates.
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Air Quality Index:
Eugene/Springfield: The Air Quality Index is 26 in the Good category measuring Particulate Matter.
Oakridge: The Air Quality Index is 14 in the Good category measuring Particulate Matter.
Cottage Grove: The Air Quality Index is 23 in the Good category measuring Particulate Matter.
Data courtesy of Lane Regional Air Protection Agency (LRAPA.org)
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Forecast for the Southern and lower Mid Willamette Valley including Eugene-Springfield and Albany-Corvallis:
- Mostly cloudy tonight,
- Mostly cloudy and a bit cooler with possible sun breaks, a (40%) chance of rain Monday afternoon, mostly cloudy with rain Monday night (0.25 in. of rain possible),
- Mostly cloudy and cooler with rain Tuesday (under 0.10 in. of rain possible), rain likely (70%) at night,
- Mostly cloudy and a bit cooler with a rain Wednesday, evening rain likely (70%), then a slight (20%) chance of rain late Wednesday night.
- lows 48-44 highs 68-56.
- Mostly cloudy with a slight (20%) chance of AM, mostly sunny and a bit warmer Thursday afternoon, mostly clear Thursday night,
- Sunny and a bit warmer Friday, mostly clear at night,
- Mostly sunny and a bit warmer Saturday, mostly clear Saturday night,
- Then mostly sunny and a bit cooler Sunday.
- highs 63-72 cooling to 69 Sunday lows 40-42. (seasonal averages high 62 low 40).
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EUGENE-SPRINGFIELD POLLEN COUNT:`
GRASS POLLEN: ABSENT (0)
TREE POLLEN: HIGH (84)
WEEDS: ABSENT (0)
Wednesday 4.17.26
NOTE: DATA FROM OREGON ALLERGY ASSOCIATES.
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Forecast for the Umpqua Valley including Roseburg:
- Mostly cloudy tonight,
- Mostly cloudy with rain likely (70%) Monday afternoon (under 0.10 in. of rain possible), rain Monday night (o.25 in. of rain possible),
- Mostly cloudy and cooler with rain Tuesday (o.25 in. of rain possible), evening rain likely (70%), a good (50%) late at night (o.25 in. of rain possible),
- Mostly cloudy and cooler with rain Wednesday, a good (50%) chance of evening rain, then just mostly cloudy late Wednesday night.
- lows 50-44 highs 69-57.
- A mix of clouds and sun and a bit warmer with a slight (20%) chance of rain Thursday, mostly clear Thursday night,
- Sunny and a bit warmer Friday, mostly clear at night,
- Mostly sunny and a bit warmer Saturday, partly cloudy Saturday night,
- Then mostly sunny and a bit cooler Sunday.
- highs 56-70 lows 43-42 warming to 44 Friday night. (seasonal averages high 64 low 43).
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Forecast for The South Oregon Coast Including Coos Bay and North Bend:
- Mostly cloudy with a slight (20%) chance of evening rain, mostly cloudy with a slight (20%) chance of rain late tonight,
- Mostly cloudy and a bit cooler with rain likely (70%) Monday afternoon (0.25 in. of rain possible), rain Monday night (0.25 in. of rain possible),
- Mostly cloudy and a bit cooler with rain Tuesday (0.25 in. of rain possible), evening rain likely (70%), a good (50%) chance of rain at night,
- Mostly cloudy and a bit cooler with rain likely (70%) Wednesday (under 0.10 in. of rain ), mostly cloudy with a good (50%) chance of rain Wednesday night.
- lows 48-44 highs 50-47.
- A mix of clouds and sun with a (30%) chance of AM rain, a mix of clouds and sun and a bit warmer Thursday afternoon, mostly clear Thursday night,
- Mostly sunny and a bit warmer Friday, mostly clear at night,
- Mostly sunny and a bit cooler Saturday, partly cloudy Saturday night,
- Then mostly sunny and a bit cooler Sunday.
- highs 56-62 cooling to 58 Sunday lows 45-47. (seasonal averages high 57 low 44).
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Forecast for the Northern Oregon Cascades including the Cascades in Lane County:
- Mostly cloudy tonight,
- Mostly cloudy start, a mix of clouds and sun with a good (50%) chance of rain Monday afternoon (under 0.10 in. of rain possible), rain Monday night (0.10 in. of rain possible),
- Mostly cloudy and cooler with rain Tuesday, rain and snow at night,
- Mostly cloudy and a bit cooler with rain and snow Wednesday, then rain with snow likely (70%) Wednesday night.
- free air freezing level 10,00 ft. tonight, snow level 7,000 ft. Monday and Monday night, 6,000 ft. Tuesday, 5,000 ft. Tuesday night, then 4,500 ft. Wednesday and Wednesday night.
- lows 42-32 highs 59-37.
- A mix of clouds and sun and warmer with a good (50%) chance of rain and snow Thursday, partly cloudy with a (30%) chance of evening rain, mostly clear with a (30%) chance of late Thursday night,
- Sunny and a bit warmer with a slight (20%) chance of rain Friday, partly cloudy with a slight (20%) chance of evening rain, mostly clear with a slight (20%) chance of rain at night,
- Mostly sunny with a slight (20%) chance of rain Saturday, partly cloudy with a slight (20%) chanced of evening rain, mostly clear with a slight (20%) chance of rain late Saturday night,
- Then mostly sunny and a bit cooler with a (30%) chance of rain Sunday.
- snow level 5,000 ft. Thursday, 5,500 ft. Thursday night, 6,000 ft. Friday, 6,500 ft. Friday night, 6,000 ft. Saturday, 6,500 ft. Saturday night, then 6,000 ft. Sunday.
- highs 50-57 cooling to 55 Sunday lows 30-35.
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