Tim Chuey Weather | Eugene Daily News

September 8, 2023

Note: Weather is a constantly changing phenomenon and weather forecasting is a combination of science, experience, and intuition. The accuracy of any given forecast can chance due to unexpected changes in atmospheric conditions, so there are no guarantees the the actual weather will conform to the projected forecast.

ADVISORIES

NONE AT THIS TIME.

HEALTH ADVISORIES

A RECREATIONAL USE HEALTH ADVISORY HAS BEEN EXPANDED FOR THE AREA FROM THE ROSS ISLAND LAGOON TO RIVERPLACE MARINA IN MULTNOMAH COUNTY DUE TO THE PRESENCE OF A CYANOBACTERIA BLOOM. PEOPLE SHOULD AVOID SWIMMING AND HIGH SPEED WATER ACTIVITIES, SUCH AS WATER SKIING OR POWER BOATING, IN AREAS OF THE LAKE AND SLOUGH WHERE BLOOMS ARE, 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. THE OREGON HEALTH AUTHORITY ENCOURAGES PEOPLE TO VISIT THE AREA AND ENJOY ACTIVITIES SUCH AS CATCH AND RELEASE FISHING, CAMPING, HIKING, BILKING, PICNICKING, BIRD WATCHING, CANOEING, AND KAYAKING. BOATING IS SAFE AS LONG AS SPEEDS DO NOT CREATE EXCESSIVE WATER SPRAY. SPRAYS COULD LEAD TO THE RISK OF INHALING CYANOTOXINS. DRINKING WATER FROM THE LAKE IS ESPECIALLY DANGEROUS.
A RECREATIONAL USE HEALTH ADVISORY IS IN EFFECT FOR THE WILLAMETTE RIVER FROM ROSS ISLAND DOWNSTREAM (NORTH) TO THE AREA NEAR CATHEDRAL PARK IN PORTLAND, IN MULTNOMAH COUNTY DUE TO THE PRESENCE OF A CYANOBACTERIA BLOOM. PEOPLE SHOULD AVOID SWIMMING AND HIGH SPEED WATER ACTIVITIES, SUCH AS WATER SKIING OR POWER BOATING, IN AREAS OF THE LAKE AND SLOUGH WHERE BLOOMS ARE, 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. THE OREGON HEALTH AUTHORITY ENCOURAGES PEOPLE TO VISIT THE AREA AND ENJOY ACTIVITIES SUCH AS FISHING, CAMPING, HIKING, BILKING, PICNICKING, BIRD WATCHING, CANOEING, AND KAYAKING. BOATING IS SAFE AS LONG AS SPEEDS DO NOT CREATE EXCESSIVE WATER SPRAY. SPRAYS COULD LEAD TO THE RISK OF INHALING CYANOTOXINS.DO NOT DRINK THE WATER.
A RECREATIONAL USE HEALTH ADVISORY ICONTINUES IN EFFECT FOR ARRONS LAKE, BUT HAS BEEN LIFTED FOR PETE’S SLOUGH AND STURGEON LAKE ON SAUVIE ISLAND DUE TO THE PRESENCE OF A CYANOBACTERIA BLOOM. PEOPLE SHOULD AVOID SWIMMING AND HIGH SPEED WATER ACTIVITIES, SUCH AS WATER SKIING OR POWER BOATING, IN AREAS OF THE LAKE AND SLOUGH WHERE BLOOMS ARE, 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. THE OREGON HEALTH AUTHORITY ENCOURAGES PEOPLE TO VISIT THE AREA AND ENJOY ACTIVITIES SUCH AS FISHING, CAMPING, HIKING, BILKING, PICNICKING, BIRD WATCHING, CANOEING, AND KAYAKING. BOATING IS SAFE AS LONG AS SPEEDS DO NOT CREATE EXCESSIVE WATER SPRAY. SPRAYS COULD LEAD TO THE RISK OF INHALING CYANOTOXINS.
A RECREATIONAL USE HEALTH ADVISORY IS IN EFFECT FOR AGENCY LAKE AND EXTENDED THE ADVISORY FOR THE SOUTHERN PORTION OF UPPER KLAMATH LAKE, FROM HOWARD’S BAY SOUTH TO THE LINK RIVER DAM IN KLAMATH COUNTY DUE TO THE PRESENCE OF A CYANOBACTERIA BLOOM. PEOPLE SHOULD AVOID SWIMMING AND HIGH SPEED WATER ACTIVITIES, SUCH AS WATER SKIING OR POWER BOATING, IN AREAS OF THE RESERVOIR WHERE BLOOMS ARE, 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. THE OREGON HEALTH AUTHORITY ENCOURAGES PEOPLE TO VISIT AND ENJOY ACTIVITIES SUCH AS FISHING, CAMPING, HIKING, BILKING, PICNICKING, BIRD WATCHING, CANOEING, AND KAYAKING. BOATING IS SAFE AS LONG AS SPEEDS DO NOT CREATE EXCESSIVE WATER SPRAY. SPRAYS COULD LEAD TO THE RISK OF INHALING CYANOTOXINS.
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.

THE WEATHER PATTERN

An Upper Level Low Pressure Trough offshore remains in control. Continued onshore airflow continues normal temperatures and surface high pressure continue a little warming Saturday. The graphics for days 1-3 show a weak cold front moves in Sunday The graphics for days 3-7 Monday through Friday show a cold front will dissolve as it pushes into the Pacific Northwest Monday with another behind it moving in next Wednesday.

Forecast For The South Willamette Valley Including Eugene-Springfield:

Mostly clear tonight,
Mostly sunny and a bit warmer Saturday, mostly clear Saturday night,
Partly cloudy and a bit cooler Sunday, partly cloudy at night,
A mix of clouds and sun Monday, then partly cloudy Monday night.
lows 48-54 highs 86-80.
Some AM clouds, mostly sunny and a bit cooler Tuesday, mostly clear Tuesday night,
Mostly sunny and a bit warmer Wednesday and Thursday, mostly clear both nights,
Then mostly sunny Friday.
highs 79-83 lows near 52 (seasonal averages high 80 low 49)

Forecast for the Umpqua Valley including Roseburg:

Partly cloudy and hazy with patchy smoke tonight,
Sunny and hazy and slightly warmer Saturday, mostly clear and hazy with patchy evening smoke, hazy Saturday night,
Haze and patchy AM fog, partly cloudy and hazy and a bit cooler Sunday afternoon, partly cloudy at night,
Partly cloudy and a bit cooler with a slight (20%) chance of rain Monday, then partly cloudy Monday night.
lows 55-57 highs 87-82.
Partly cloudy Tuesday, mostly clear Tuesday night,
Sunny and a bit warmer Wednesday, mostly clear at night,
Mostly sunny and a bit warmer Thursday, mostly clear Thursday night,
Then mostly sunny Friday.
highs near 82-85 lows 54-56. (seasonal averages high 82 low 54)

Forecast for the Oregon Coast including Coos Bay and North Bend:

patchy fog late tonight,
AM clouds with haze patchy fog, sunny and hazy and a bit warmer Saturday afternoon, mostly clear with inland evening haze, partly cloudy with patchy fog and inland haze late Saturday night,
Mostly cloudy with patchy AM coastal fog while inland AM haze and patchy fog, partly cloudy and a bit warmer Sunday afternoon, partly cloudy in the evening, mostly cloudy with patchy fog and a slight (20%) chance of rain late at night,
Patchy AM fog, mostly cloudy and a bit cooler with a slight (20%) chance of rain Monday afternoon, then just partly cloudy Monday night.
lows 53-57 cooling to 55 Monday night highs 73-76 cooling to 74 Monday.
Mostly sunny and a bit warmer Tuesday and Wednesday, mostly clear both nights,
Mostly sunny and a bit cooler Thursday, mostly clear in the evening, partly cloudy Thursday night,
Some AM clouds, then sunny and a bit cooler Friday afternoon.
highs 74-76 cooling back to 74 Friday lows near 55. (seasonal averages high 67 low 52)

Forecast for the Northern Oregon Cascades including Willamette Pass:

Partly cloudy tonight,
Mostly sunny and a bit warmer with a slight (20%) chance of showers and thunderstorms Saturday afternoon, mostly clear Saturday night,
Mostly sunny start, partly cloudy and a bit cooler Sunday afternoon, just partly cloudy Sunday night,
Then partly cloudy and a bit cooler Monday and Monday night.
free air freezing level 13,000 ft. falling to 12,000 ft. late tonight, snow level above 8,000 ft. Saturday, free air freezing level 13,000 ft. Saturday night, 12,000 ft. rising to 13,000 ft. Sunday, 13,000 ft. Sunday night and Monday, then 14,000 ft. Monday night.
lows 46-49 cooling to 44 Monday night highs 75-70.
Some AM clouds, mostly sunny and a bit cooler Tuesday afternoon, mostly clear Tuesday night,
Then mostly sunny and a bit warmer Wednesday, Thursday, and Friday, mostly clear each night,
free air freezing level 14,000 ft. Tuesday through Wednesday, 15,000 ft. Wednesday night through Thursday night, then 14,000 ft. Friday.
highs 68-74 lows 43-46.