May
23.
An Upper Level High Pressure Ridge (“Arch” shape) has kept us dry, but that will change for the Memorial Day Holiday. The graphics for days 1-3 show a cold frontal system moves over the Pacific Northwest today and Sunday. The graphics for days 3-7 Monday through Friday show another weak frontal system will to be pushing through the Pacific Northwest late Sunday into Monday and another late afternoon just in time for the Memorial Day Holiday.
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: IT’S NOT OFFICIAL, BUT DUE TO THE LATENESS OF THE SEASON AND THE MILD WEATHER TREND, CONSIDER IT CLOSED FOR THE SEASON.
Hoodoo Ski: IS CLOSED FOR THE SEASON.
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 18 in the Good category measuring Particulate Matter.
Oakridge: The Air Quality Index is 24 in the Good category measuring Particulate Matter.
Cottage Grove: The Air Quality Index is 21 in the Good category measuring Ozone.
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 clear tonight,
- Mostly sunny and a bit warmer Sunday, becoming partly cloudy Sunday night,
- Mostly cloudy and cooler with rain (0.25 in. of rain possible) likely (70%) and breezy (Wind: light S then WSW 10-15 mph gusts to 28 mph late morning) Monday afternoon (Memorial Day), showers at night (under 0.10 in. of rain possible),
- Cloudy and cooler with showers Tuesday and a slight (20%) chance of thunderstorms Tuesday afternoon, then mostly cloudy with evening rain likely (70%), a slight (20%) chance of rain late Tuesday night.
- lows 47-52 cooling to 44 Monday night warming to 45 Tuesday night highs 78-82 cooling to 66 Monday.
- A mix of clouds and sun and a bit warmer Wednesday, partly cloudy Wednesday night,
- Mostly sunny and a bit warmer with a slight (20%) chance of rain Thursday afternoon, partly cloudy with a slight (20%) chance of rain at night,
- A mix of clouds and sun and a bit warmer with a slight (20%) chance of rain Friday, just partly cloudy Friday night,
- Then mostly sunny Saturday.
- highs 62-73 cooling to 69 Saturday lows 45-50 cooling to 46 Friday night. (seasonal averages high 69 low 45).
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EUGENE-SPRINGFIELD POLLEN COUNT:`
GRASS POLLEN: VERY HIGH (667)
TREE POLLEN: MODERATE (45)
WEEDS: LOW (2)
Measured 5.22.26
NOTE: DATA FROM OREGON ALLERGY ASSOCIATES.
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Forecast for the Umpqua Valley including Roseburg:
- Mostly clear tonight,
- Sunny and a bit warmer Sunday, becoming mostly cloudy Sunday night,
- A mix of clouds and sun and cooler with a (30%) chance of rain Monday afternoon (Memorial Day), evening rain, mostly cloudy with a good (50%) chance of rain late at night,
- Mostly cloudy with AM rain likely (70%), showers with a slight (20%) chance of thunderstorms and cooler Tuesday afternoon, mostly cloudy with a good (50%) chance of evening rain, just mostly cloudy Tuesday night.
- lows 52-53 cooling to 45 Monday night warming to 47 Tuesday night highs 85-62.
- A mix of clouds and sun and a bit warmer with a slight (20%) chance of rain Wednesday afternoon, partly cloudy Wednesday night,
- A slight (20%) chance of AM rain, just mostly sunny and a bit warmer Thursday afternoon, partly cloudy with a good (50%) chance of rain at night,
- A mix of clouds and sun and a bit cooler Friday, partly cloudy Friday night,
- Then mostly sunny Saturday.
- highs 67-73 cooling to 70 Friday and Saturday lows 48-52 cooling back to 48 Friday night. (seasonal averages high 72 low 49).
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Forecast for The South Oregon Coast Including Coos Bay and North Bend:
- Partly cloudy tonight,
- Sunny and a bit warmer Sunday, becoming mostly cloudy Sunday night,
- Mostly cloudy with rain (0.25 in. of rain possible) and a bit cooler Monday afternoon (Memorial Day), rain at night (0.25 in. of rain possible),
- Mostly cloudy with showers and a bit warmer with a slight (20%) chance of thunderstorms Tuesday (0.25 in.of rain possible, more in storms) then just partly cloudy and a bit cooler late Tuesday night.
- lows 48-50 cooling to 49 Monday night warming to 50 Tuesday night highs 59-62 cooling to 56 Monday.
- Clouds and sun with a slight (20%) chance of AM rain, a mix of clouds and sun Wednesday afternoon, partly cloudy Wednesday night,
- A mix of clouds and sun and a bit warmer Thursday, mostly cloudy with a slight (20%) chance of rain at night,
- A mix of clouds and sun Friday, partly cloudy Friday night,
- Then mostly sunny Saturday.
- highs 57-60 cooling to 59 Friday lows 50-52. (seasonal averages high 61 low 49).
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Forecast for the Northern Oregon Cascades including the Cascades in Lane County:
- Mostly clear tonight,
- Sunny and a bit warmer Sunday, partly cloudy in the evening, mostly clear late Sunday night,
- A mix of clouds and sun and cooler with a good (50%) chance of rain Monday afternoon (Memorial Day), rain and snow showers at night,
- Mostly cloudy and cooler with rain showers and snow showers and a slight (20%) chance of thunderstorms Tuesday, then mostly cloudy with a good (50%) chance of rain Tuesday night.
- free air freezing level 12,000 ft. tonight and Sunday, 12,000 ft. rising to 13,000 ft. late Sunday night, snow level 8,000 ft. Monday, 5,000 ft. Monday night and Tuesday, then 5,500 ft. Tuesday night.
- lows 39-42 cooling to 32 Monday night warming to 33 Tuesday night highs 70-43.
- Mostly cloudy with a good (50%) chance of AM rain, a mix of clouds and sun and a bit warmer with a good (50%) chance of rain Wednesday afternoon, partly cloudy with a slight (20%) chance of rain Wednesday night,
- Mostly sunny and warmer with a go0d (50%) chance of showers and a slight (20%) chance of thunderstorms Thursday, mostly cloudy with a good (50%) chance of rain at night,7,500 ft.
- A mix of clouds and sun and a bit cooler with a (30%) chance of rain Friday, partly cloudy with a slight (20%) chance of rain Friday night,
- Then mostly sunny and a bit warmer Saturday.
- snow level 6,000 ft Wednesday, above 8,000 ft. Wednesday night, 8,000 ft. Thursday through Friday, 7,500 ft. Friday night, then free air freezing level 12,000 ft. Saturday.
- highs 43-59 cooling to 58 Friday lows 36-39 cooling to 37 Friday night.
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