Tim Chuey Weather

September 27, 2022

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

A RED FLAG WARNING IS IN EFFECT FROM 2 PM UNTIL 8 PM TODAY FOR STRONG WINDS AND LOW RELATIVE HUMIDITY FOR THE KLAMATH BASIN AND THE FREMONT-WINEMA NATIONAL FOREST.
AN AIR QUALITY ADVISORY IS IN EFFECT UNTIL 11 AM THURSDAY FOR EASTERN LANE COUNTY DUE TO SMOKE FROM THE CEDAR CREEK WILDFIRE.

HEALTH ADVISORIES

A RECREATIONAL HEALTH ADVISORY IS IN EFFECT FOR ALL OF UPPER KLAMATH LAKE IN KLAMATH COUNTY INCLUDING SHOALWATER BAY DUE THE PRESENCE OF A CYANOBACTERIA (BLUE-GREEN ALGAE) BLOOM AND CYANOTOXINS ABOVE RECREATIONAL USE VALUES FOR HUMAN EXPOSURE. PEOPLE SHOULD AVOID SWIMMING AND HIGH-SPEED WATER ACTIVITIES, SUCH AS WATER SKIING OR POWER BOATING, IN AREAS OF THE LAKE WHERE BLOOMS ARE, AS THE MAJOR RISK OF EXPOSURE IS FROM INGESTING WATER. THESE TOXINS ARE NOT ABSORBED THROUGH THE SKIN. HOWEVER, IF YOU HAVE SKIN SENSITIVITIES YOU MAY GET A PUFFY RED RASH. IT CAN BE HARMFUL TO PETS AND PEOPLE IF ACCIDENTAL INGESTION OCCURS. SPECIAL CARE SHOULD BE TAKEN WITH CHILDREN, ESPECIALLY THE YOUNGER ONES, WHEN THEY ARE NEAR THE WATER.
NOTE: A RECREATIONAL HEALTH ADVISORY IS IN EFFECT FOR THE WILLAMETTE RIVER NEAR CATHEDRAL PARK IN NORTH PORTLAND DUE THE PRESENCE OF A CYANOBACTERIA (BLUE-GREEN ALGAE) BLOOM AND CYANOTOXINS ABOVE RECREATIONAL USE VALUES FOR HUMAN EXPOSURE. IT HAS BEEN EXPANDED UPSTREAM (SOUTH) TO THE WILLAMETTE COVE AREA NEAR THE SP&S RAILROAD BRIDGE. PEOPLE SHOULD AVOID SWIMMING AND HIGH-SPEED WATER ACTIVITIES, SUCH AS WATER SKIING OR POWER BOATING, IN AREAS OF THE LAKE WHERE BLOOMS ARE, AS THE MAJOR RISK OF EXPOSURE IS FROM INGESTING WATER. THESE TOXINS ARE NOT ABSORBED THROUGH THE SKIN. HOWEVER, IF YOU HAVE SKIN SENSITIVITIES YOU MAY GET A PUFFY RED RASH. IT CAN BE HARMFUL TO PETS AND PEOPLE IF ACCIDENTAL INGESTION OCCURS. SPECIAL CARE SHOULD BE TAKEN WITH CHILDREN, ESPECIALLY THE YOUNGER ONES, WHEN THEY ARE NEAR THE WATER. BLOOMS CAN DEVELOP AND DISAPPEAR ON ANY BODY OF WATER AT ANY TIME, EVEN IN THE FALL AND WINTER IF CONDITIONS ARE FAVORABLE. ONLY A FRACTION OF WATER BODIES IN OREGON ARE MONITORED FOR CYANOBACTERIA, BLOOMS AND TOXINS DURING THE RECREATION SEASON, AND NO MONITORING OR SAMPLING IS PERFORMED ONCE RECREATION SEASON HAS ENDED. IT IS VERY IMPORTANT FOR PEOPLE TO BECOME FAMILIAR WITH SIGNS OF BLOOM, EXPOSURES, AND SYMPTOMS BY VISITING OHA’S CYANOBACTERIA HARMFUL ALGAE BLOOM WEBSITE AT: http://www.healthoregon.org/hab.
A PERMANENT RECREATIONAL HEALTH ADVISORY IS IN EFFECT FOR THE SOUTH UMPQUA RIVER AND MAINSTEM UMPQUA RIVER. THE ADVISORY COVERS THE SOUTH UMPQUA RIVER FROM CANYONVILLE DOWNSTREAM TO THE CONFLUENCE OF THE MAINSTEM UMPQUA RIVER, AND THE MAINSTEM UMPQUA RIVER DOWNSTREAM PAST ELKTON TO LAWSON BAR. PEOPLE IN THE BEDROCK ALONG THE RIVERS EDGE ARE ARE KNOWN TO DEVELOP CYANOBACTERIA (BLUE-GREEN ALGAE) BLOOMS THAT CAN BE HARMFUL TO PETS AND PEOPLE IF ACCIDENTAL INGESTION OCCURS. SIGNS HAVE BEEN POSTED AT SEVERAL ACCESS AREAS ALONG THE RIVER.

THE WEATHER PATTERN

An Upper Level High Pressure Ridge (“Arch” shape) offshore takes over returning Summer-like temperatures. The graphics for days 1-3 show a cold front moving through Oregon tonight and Wednesday. The graphics for days 3-7 Friday through Tuesday show the frontal system that will be to our northwest Monday.

Forecast for the South Willamette Valley including Eugene-Springfield:

Partly cloudy and cooler today, partly cloudy with a slight (20%) chance of evening rain, becoming mostly cloudy with a slight (20%) chance of showers late tonight (under 0.10 in. of rain possible),
Mostly cloudy with rain and a bit cooler Wednesday (under 0.10 in. of rain possible), a good (50%) chance of showers late Wednesday night (under 0.10 in. of rain possible),
A mix of clouds and sun with a good (50%) chance of showers Thursday, partly cloudy Thursday night.
highs 77-72 lows 53-54 cooling to 50 Thursday night.
Some AM clouds, mostly sunny and a bit warmer Friday, mostly clear at night,
Mostly sunny and a bit warmer Saturday, partly cloudy Saturday night,
Some AM clouds, sunny and a bit cooler Sunday afternoon, partly cloudy Sunday night,
Then partly cloudy and a bit cooler Monday.
highs 79-83 cooling back to 79 Monday lows near 50. (Seasonal Averages high 74 low 46)

Forecast for the Umpqua Valley including Roseburg:

AM clouds with patchy fog, partly cloudy and cooler this afternoon and evening, mostly cloudy with a (30%) chance of showers late tonight,
Mostly cloudy with AM showers likely (70%), cooler with a good (50%) chance of showers Wednesday afternoon (0.10 in. of rain possible),, partly cloudy with a (30%) chance of evening showers, mostly cloudy with a (30%) chance of showers late at night (under 0.10 in. of rain possible),
Mostly cloudy with a slight (20%) chance of AM showers, partly cloudy and a with a slight (20%) chance of showers Thursday afternoon, becoming mostly clear Thursday night.
highs 80-73 lows 55-52.
Mostly sunny and a bit warmer Friday and Saturday, mostly clear both nights,
Mostly sunny and a bit cooler Sunday, partly cloudy Sunday night,
Then partly cloudy and a bit cooler Monday.
highs 80-86 cooling to 79 Monday lows near 55. (Seasonal Averages high 76 low 50).

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

Mostly cloudy with areas of AM fog, partly cloudy and a bit warmer this afternoon, mostly cloudy with a slight (20%) chance of evening coastal showers late while just partly cloudy this evening inland, coastal showers likely (70%) late tonight while mostly cloudy with a good (50%) chance of inland showers late tonight (under 0.10 in. of rain possible),
Mostly cloudy with AM showers likely (70%), partly cloudy with a good (50%) chance of showers and a bit warmer Wednesday afternoon (under 0.10 in. of rain possible), mostly cloudy with a (30%) chance of showers late Wednesday night (under 0.10 in. of rain possible),
Mostly cloudy with a slight (20%) chance of AM showers, partly cloudy with a (30%) chance of showers Thursday afternoon, mostly clear in the evening, then partly cloudy late at night.
highs 72-73 lows near 55.
Mostly sunny and a bit warmer Friday, mostly clear Friday night,
Mostly sunny Saturday, partly cloudy at night,
Partly cloudy and a bit cooler Sunday, mostly cloudy Sunday night,
Then mostly cloudy Monday.
highs 76-74 lows near 55. (Seasonal Averages high 66 low 50)

Forecast for the Northern Oregon Cascades including Willamette Pass:

AM sun with areas of smoke, partly cloudy and a bit cooler with areas of smoke this afternoon, partly cloudy this evening, mostly cloudy with a good (50%) chance of rain late tonight,
Mostly cloudy and much cooler with good (50%) chance of rain Wednesday, partly cloudy with a good (50%) chance of evening showers, mostly cloudy with a good (50%) chance of showers late Wednesday night,
A mix of clouds and sun and a bit cooler with a (40%) chance of showers Thursday, just partly cloudy Thursday night.
free air freezing level 14,000 ft. today, snow level above 8,000 ft. tonight and Wednesday, 8,000 ft. Wednesday night, above 8,000 ft. Thursday, then free air freezing level 14,000 ft. Thursday night.
highs 77-59 lows 45-39.
Mostly sunny and warmer Friday, mostly clear Friday night,
Mostly sunny and a bit warmer Saturday, mostly clear at night,
Some AM clouds, mostly sunny Sunday afternoon, partly cloudy Sunday night,
Then partly cloudy and a bit cooler Monday.
free air freezing level 15,000 ft. Friday through Saturday night, then 14,000 ft. Sunday through Monday.
highs 58-69 cooling to 62 Sunday lows 40-43.

For all of your Eugene-Springfield and Lane County News, Weather, and Sports go to: EugeneDailyNews.com

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8/ 22 Plenty of sunshine, but cooler to start your workweek today.

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

Becoming mostly cloudy late tonight,
Some AM clouds, sunny and a bit warmer Friday afternoon, clear in the evening, partly cloudy late Friday night,
Mostly cloudy start, partly cloudy and slightly cooler Saturday afternoon, mostly clear at night,
Mostly sunny Sunday, then mostly clear Sunday night.
lows 54-56 cooling back to 54 Sunday night highs 70-69.
Mostly sunny and a bit warmer Monday, mostly clear Monday night,
Partly cloudy and slightly cooler Tuesday, partly cloudy at night,
Then partly cloudy Wednesday through Thursday.
highs 73-72 lows 54-56 cooling back to 54 Wednesday night. (Seasonal Averages high 66 low 54)

Forecast for the Northern Oregon Cascades including Willamette Pass:

Mostly clear tonight,
Mostly sunny and a bit cooler Friday, clear Friday night,
Sunny and a bit warmer Saturday, mostly clear at night,
Some AM clouds, mostly sunny and a bit cooler Sunday, then clear Sunday night.
free air freezing level 15,000 ft. falling to 14,000 ft. late tonight, 14,000 ft. rising to 15,000 ft. Friday afternoon, 15,000 ft. Friday night through Sunday, then 16,000 ft. Sunday night.
lows 49-47 highs 74-72 warming back to 74 Sunday.
Sunny and a bit warmer Monday, clear Monday night,
Sunny Tuesday, mostly clear at night,
Then mostly sunny and a bit cooler Wednesday and Thursday, mostly clear Wednesday night.
free air freezing level 16,000 ft. Monday through Thursday.
highs 80-75 lows 53-50.

Tim Chuey Weather

ADVISORIES

HEALTH ADVISORIES

THE WEATHER PATTERN

Forecast for the South Willamette Valley including Eugene-Springfield:

Forecast for the Umpqua Valley including Roseburg:

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

Forecast for the Northern Oregon Cascades including Willamette Pass:

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

Forecast for the Northern Oregon Cascades including Willamette Pass: