Aug
28.
An Upper Level Low Pressure Trough (“U” shape) continues to give us weak onshore airflow to keep us in cooler temperatures for a while. The graphics for days 1-3 show no frontal systems sliding into the Pacific Northwest. The graphics for days 3-7 Monday through Friday show a cold front moving in Monday and next Tuesday.
ADVISORIES:
- NONE AT THIS TIME.
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 55 in the Moderate category measuring Particulate Matter.
Oakridge: The Air Quality Index is 61 in the Moderate category measuring Particulate Matter.
Cottage Grove: The Air Quality Index is 48 in the Good category measuring Particulate Matter.
Data courtesy of Lane Regional Air Protection Agency (LRAPA.org)
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Eugene-Springfield Area Pollen count:
GRASS: 2 LOW
TREES: 0 ABSENT
WEEDS: 0 ABSENT
Measured 8.28.25
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:
- Sunny and a bit cooler today, partly cloudy this evening, mostly clear late tonight,
- Mostly sunny and a bit cooler Saturday, partly cloudy at night,
- Mostly sunny a bit warmer Sunday, then mostly clear Sunday night.
- highs 88-84 warming to 85 Sunday lows 53-54.
- Sunny and a bit warmer Monday (Labor Day), mostly clear Monday night,
- Sunny and a bit warmer Tuesday, mostly clear at night,
- Mostly sunny and a bit warmer Wednesday, mostly clear in the evening, partly cloudy late Wednesday night,
- Then mostly sunny Thursday.
- highs 88-93 lows 57-60 (seasonal averages high 82 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: Mostly Sunny 75 degrees, warming to 84 by the end of the game.
Beavers vs. Cal Golden Bears at Reser Stadium, Game Time 7:30 PM- Preliminary forecast: Mostly Clear to Partly Cloudy 75 degrees, then cooling as the game progresses.
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Forecast for the Umpqua Valley including Roseburg:
- Sunny and slightly cooler today, partly cloudy tonight,
- Partly cloudy and a bit cooler Saturday, partly cloudy at night,
- Some AM clouds, sunny and a bit warmer Sunday afternoon, then mostly clear Sunday night.
- highs 92-87 warming to 88 Sunday lows 58-59 cooling back to 58 Saturday night .
- Mostly sunny and a bit warmer Monday (Labor Day), mostly clear Monday night,
- Mostly sunny and a bit warmer Tuesday, mostly clear at night,
- Partly cloudy and a bit warmer Wednesday, partly cloudy Wednesday night,
- Then partly cloudy Thursday.
- highs 90-96 lows 60-63.
- (seasonal averages high 84 low 56).
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Forecast for The South Oregon Coast Including Coos Bay and North Bend:
- Mostly cloudy with areas of AM fog, partly cloudy and warmer this afternoon, partly cloudy with patchy evening coastal fog and areas of coastal fog late tonight while partly cloudy with patchy inland fog late tonight,
- Mostly cloudy with areas of AM coastal fog while patchy AM inland fog, partly cloudy and a bit warmer Saturday afternoon, partly cloudy in the evening, mostly cloudy late night,
- Partly cloudy and a bit warmer Sunday, then partly cloudy Sunday night.
- highs 72-75 lows 53-56.
- Partly cloudy Monday (Labor Day), partly cloudy Monday night,
- Then partly cloudy Tuesday through Thursday.
- highs near 75 lows 55-57.
- (seasonal averages high 68 low 53). _______________
Forecast for the Northern Oregon Cascades including the Cascades in Lane County:
- Sunny and a bit warmer with areas of smoke today, partly cloudy this evening, clear late tonight,
- Mostly sunny and a bit cooler Saturday, mostly cloudy in the evening, partly cloudy late at night,
- Sunny Sunday, then mostly clear Sunday night.
- free air freezing level 14,000 ft. today through Sunday, then 15,000 ft. Sunday night.
- highs 78-79 cooling to 74 Saturday lows 52-50.
- Sunny and a bit warmer Monday (Labor Day), mostly clear Monday night,
- Sunny and a bit warmer Tuesday, partly cloudy in the evening, mostly clear late at night,
- Sunny and a bit warmer Wednesday, partly cloudy Wednesday night,
- Then mostly sunny and a bit cooler Thursday.
- free air freezing level 15,000 ft. Monday through Thursday.
- highs 74-80 lows 48-53.
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