Aug
25.
An Upper Level High Pressure Ridge that formed a heat dome over the Pacific Northwest is weakening. The graphics for days 1-3 show no frontal systems sliding into the Pacific Northwest. The graphics for days 3-7 Thursday through Monday show a cold front moving in between Saturday and next Sunday.
ADVISORIES:
- A RED FLAG WARNING IS IN EFFECT UNTIL 9 PM TONIGHT FOR THE FOOTHILLS OF THE NORTHERN BLUE MOUNTAINS OF OREGON AND THE FOOTHILLS OF THE SOUTHERN BLUE MOUNTAINS OF OREGON.
- A RED FLAG WARNING IS IN EFFECT FROM 9 AM UNTIL 9 PM TODAY FOR THUNDERSTORMS AND HIGH INSTABILITY FOR THE NORTHERN WILLAMETTE NATIONAL FOREST AND THE SOUTHERN WILLAMETTE NATIONAL FOREST.
- A FLASH FLOOD WATCH IS IN EFFECT FROM THIS AFTERNOON THROUGH WEDNESDAY EVENING FOR HARNEY COUNTY, BAKER COUNTY, MALHEUR COUNTY, AND THE OREGON LOWER TREASURE VALLEY.
HEALTH ADVISORIES:
- A RECREATIONAL HEALTH ADVISORY IS IN EFFECT DUE TO A FOR THE WILLAMETTE RIVER TO INCLUDE ROSS ISLAND BRIDGE DOWN RIVER TO WAPATO BRIDGE AND KELLY POINT PARK. AREAS OF THE RIVER AFFECTED BY THE ADVISORY ARE IN MULTNOMAH COUNTY. *PEOPLE SHOULD AVOID SWIMMING AND HIGH-SPEED ACTIVITIES, SUCH AS WATER SKIING OR POWER BOATING, IN AREAS WHERE BLOOMS ARE PRESENT, AS THE MAJOR ROUTE OF EXPOSURE IS INGESTION OF WATER. TOXINS ARE NOT ABSORBED THROUGH THE SKIN, HOWEVER THOSE WITH SKIN SENSITIVITIES MAY GET A PUFFY RED RASH. OREGON HEALTH AUTHORITY ENCOURAGES PEOPLE TO VISIT THE WILLAMETTE RIVER TO ENJOY ACTIVITIES SUCH AS FISHING, HIKING, BIKING, PICNICKING, BIRD WATCHING, CANOEING, AND KAYAKING. BOATING IS SAFE AS LONG AS SPEEDS DO NOT CREATE EXCESSIVE WATER SPRAY, WHICH INCREASES THE RISK OF INHALING CYANOTOXINS.
- A RECREATIONAL HEALTH ADVISORY IS IN EFFECT FOR ODEL LAKE IN KLAMATH COUNTY DUE TO THE PRESENCE OF MICROCYSTIN.*PEOPLE SHOULD AVOID SWIMMING AND HIGH-SPEED ACTIVITIES, SUCH AS WATER SKIING OR POWER BOATING, IN AREAS WHERE BLOOMS ARE PRESENT, AS THE MAJOR ROUT OF EXPOSURE IS INGESTION OF WATER. TOXINS ARE NOT ABSORBED THROUGH THE SKIN, HOWEVER THOSE WITH SKIN SENSITIVITIES MAY GET A PUFFY RED RASH. OREGON HEALTH AUTHORITY ENCOURAGES PEOPLE TO VISIT ODEL LAKE TO ENJOY ACTIVITIES SUCH AS FISHING, HIKING, BIKING, PICNICKING, BIRD WATCHING, CANOEING, AND KAYAKING. BOATING IS SAFE AS LONG AS SPEEDS DO NOT CREATE EXCESSIVE WATER SPRAY, WHICH INCREASES THE RISK OF INHALING MICROCYSTIN.
- A RECREATIONAL HEALTH ADVISORY IS IN EFFECT DUE TO A FOR BROWNLEE RESERVOIR IN BAKER COUNTY DUE TO THE SPREAD OF *PEOPLE SHOULD AVOID SWIMMING AND HIGH-SPEED ACTIVITIES, SUCH AS WATER SKIING OR POWER BOATING, IN AREAS WHERE BLOOMS ARE PRESENT, AS THE MAJOR ROUT OF EXPOSURE IS INGESTION OF WATER. TOXINS ARE NOT ABSORBED THROUGH THE SKIN, HOWEVER THOSE WITH SKIN SENSITIVITIES MAY GET A PUFFY RED RASH. OREGON HEALTH AUTHORITY ENCOURAGES PEOPLE TO VISIT THE WILLAMETTE RIVER TO ENJOY ACTIVITIES SUCH AS FISHING, HIKING, BIKING, PICNICKING, BIRD WATCHING, CANOEING, AND KAYAKING. BOATING IS SAFE AS LONG AS SPEEDS DO NOT CREATE EXCESSIVE WATER SPRAY, WHICH INCREASES THE RISK OF INHALING CYANOTOXINS. *
- A RECREATIONAL HEALTH ADVISORY IS IN EFFECT FOR ECKMAN LAKE IN LINCOLN COUNTY DUE TO THE PRESENCE OF CYANOBACTERIA.*PEOPLE SHOULD AVOID SWIMMING AND HIGH-SPEED ACTIVITIES, SUCH AS WATER SKIING OR POWER BOATING, IN AREAS WHERE BLOOMS ARE PRESENT, AS THE MAJOR ROUT OF EXPOSURE IS INGESTION OF WATER. TOXINS ARE NOT ABSORBED THROUGH THE SKIN, HOWEVER THOSE WITH SKIN SENSITIVITIES MAY GET A PUFFY RED RASH. OREGON HEALTH AUTHORITY ENCOURAGES PEOPLE TO VISIT ODEL LAKE TO ENJOY ACTIVITIES SUCH AS FISHING, HIKING, BIKING, PICNICKING, BIRD WATCHING, CANOEING, AND KAYAKING. BOATING IS SAFE AS LONG AS SPEEDS DO NOT CREATE EXCESSIVE WATER SPRAY, WHICH INCREASES THE RISK OF INHALING SAXITOXIN (PSP).
- A RECREATIONAL HEALTH ADVISORY IS IN EFFECT FOR UPPER KLAMATH LAKE IN KLAMATH COUNTY DUE TO THE PRESENCE OF MICROCYSTIN.*PEOPLE SHOULD AVOID SWIMMING AND HIGH-SPEED ACTIVITIES, SUCH AS WATER SKIING OR POWER BOATING, IN AREAS WHERE BLOOMS ARE PRESENT, AS THE MAJOR ROUT OF EXPOSURE IS INGESTION OF WATER. TOXINS ARE NOT ABSORBED THROUGH THE SKIN, HOWEVER THOSE WITH SKIN SENSITIVITIES MAY GET A PUFFY RED RASH. OREGON HEALTH AUTHORITY ENCOURAGES PEOPLE TO VISIT UPPER KLAMATH LAKE TO ENJOY ACTIVITIES SUCH AS FISHING, HIKING, BIKING, PICNICKING, BIRD WATCHING, CANOEING, AND KAYAKING. BOATING IS SAFE AS LONG AS SPEEDS DO NOT CREATE EXCESSIVE WATER SPRAY, WHICH INCREASES THE RISK OF INHALING MICROCYSTIN.
- 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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Air Quality Index:
Eugene/Springfield: The Air Quality Index is 61 in the Moderate category measuring Particulate Matter.
Oakridge: The Air Quality Index is 56 in the Moderate category measuring Particulate Matter.
Cottage Grove: The Air Quality Index is 61 in the Moderate category measuring Particulate Matter.
Data courtesy of Lane Regional Air Protection Agency (LRAPA.org)
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Eugene-Springfield Area Pollen count:
GRASS: 3 LOW
TREES: 0 ABSENT
WEEDS: 0 ABSENT
Measured 8.25.25
Data courtesy of Oregon Allergy Associates.
The grass pollen season has just about ended.
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Forecast for the Southern and lower Mid Willamette Valley including Eugene-Springfield and Albany-Corvallis:
- Mostly sunny and a bit cooler and hazy with areas of smoke this afternoon, partly cloudy with evening haze, mostly cloudy late tonight,
- Mostly sunny and a bit cooler Wednesday, partly cloudy Wednesday night,
- Mostly sunny Thursday, then mostly clear Thursday night.
- highs 92-88 lows 62-55.
- Mostly sunny Friday, partly cloudy Friday night,
- Mostly sunny and a bit cooler Saturday, mostly clear at night,
- Sunny a bit warmer Sunday, mostly clear Sunday night,
- Then sunny and a bit cooler Monday (Labor Day).
- highs 88-86 warming to 87 Sunday cooling to 86 Monday lows 55-56. (seasonal averages high 83 low 51).
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YOUR SATURDAY COLLEGE FOOTBALL WEATHER FORECAST:
SATURDAY AUGUST 30TH:
Ducks vs. Montana State at Autzen Stadium, Game Time 1:00 pm Forecast: Preliminary forecast: Sunny 79 degrees warming to 85 by the end of the game.
Beavers vs. Cal Golden Bears at Reser Stadium, Game Time 7:30 PM- Preliminary forecast: Clear 75 degrees then cooling as the game progresses.
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Forecast for the Umpqua Valley including Roseburg:
- Partly cloudy and hazy with a slight (20%) chance of thunderstorms this afternoon, partly cloudy with a slight (20%) chance of thunderstorms tonight,
- Partly cloudy and a bit cooler with a slight (20%) chance of thunderstorms Wednesday afternoon and evening, mostly clear late at night,
- Mostly sunny and a bit cooler Thursday,
- highs 96-90 lows 64-60.
- Partly cloudy Thursday and Friday, mostly clear both nights,
- Mostly sunny and a bit cooler Saturday and Sunday mostly clear both nights,
- Then mostly sunny and a bit cooler Monday (Labor Day).
- highs 89-86 warming to 88 Saturday and Sunday lows 62-59 warming to 60 Saturday night.
- (seasonal averages high 85 low 56).
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Forecast for The South Oregon Coast Including Coos Bay and North Bend:
- Hazy with AM clouds, sunny and hazy and a bit warmer this afternoon, partly cloudy this evening at the shore and mostly cloudy late tonight at the shore while partly cloudy inland with a slight (20%) chance of evening thunderstorms and just mostly cloudy inland late tonight,
- Mostly cloudy start, sunny and a bit cooler Wednesday afternoon, partly cloudy at night,
- Partly cloudy and a bit warmer Thursday, then partly cloudy Thursday night.
- highs 75-74 warming back to 75 Thursday lows 57-55.
- Partly cloudy and a bit warmer Friday, partly cloudy Friday night,
- Some AM clouds, sunny Saturday afternoon, mostly clear in the evening, partly cloudy late at night,
- Mostly sunny Sunday, mostly clear Sunday night,
- Then mostly sunny and a bit cooler Monday (Labor Day).
- highs 76-75 lows 55-56.
- (seasonal averages high 68 low 53). _______________
Forecast for the Northern Oregon Cascades including the Cascades in Lane County:
- Mostly sunny and a bit cooler with areas of smoke and a slight (20%) chance of thunderstorms this afternoon, mostly cloudy with a (40%) chance of showers and a slight (20%) chance of evening thunderstorms, areas of smoke and hazy with a slight (20%) chance of thunderstorms late tonight,
- Mostly sunny and a bit cooler with (40%) chance of showers and a slight (20%) chance of thunderstorms Wednesday afternoon, partly cloudy with a slight (20%) chance of evening showers, then mostly clear late Wednesday night.,
- Sunny Thursday, then mostly clear Thursday might, .
- free air freezing level 14,000 ft. today, snow level above 8,000 ft. tonight through Wednesday night, then free air freezing level 14,000 ft Wednesday through Thursday night.
- highs 77-76 lows 55-52.
- Mostly sunny and a bit warmer Friday, partly cloudy in the evening, clear late Friday night,
- Sunny and a bit cooler Saturday, mostly clear at night,
- Then mostly sunny and Monday (Labor Day),
- free air freezing level 14,000 ft. Friday through Saturday, 15,000 ft. Saturday night, then 14,000 ft. Sunday and Sunday night, then 13,000 ft. Monday.
- highs 77-75 lows 50-49 warming back to 50 Monday night.
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