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Tim Chuey Weather

by | Sep 17, 2023 | Weather

September 17, 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

  • A RED FLAG WARNING IS IN EFFECT FROM NOON UNTIL 8 P,M MONDAY FOR WIND AND LOW RELATIVE HUMIDITY FOR THE LOWER COLUMBIA BASIN.
  • A BEACH HAZARDS STATEMENT IS IN EFFECT FOR DANGEROUS SNEAKER WAVES FROM MONDAY MORNING THROUGH MONDAY EVENING FOR THE SOUTH CENTRAL OREGON COAST AND THE CURRY COUNTY COAST.
  • A BEACH HAZARDS STATEMENT IS IN EFFECT FOR DANGEROUS SNEAKER WAVES FROM MONDAY MORNING THROUGH MONDAY EVENING FOR THE NORTH OREGON COAST AND THE CENTRAL OREGON COAST.
  • AN AIR QUALITY ALERT IS IN EFFECT UNTIL MIDNIGHT TONIGHT FOR WILDFIRE SMOKE FOR CROOK COUNTY AND DESCHUTES COUNTY.

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 High Pressure Ridge is moving eastward to be followed by Low Pressure allowing for some cooling. The graphics for days 1-3  show a cold front moving through the Pacific Northwest Monday. The graphics for days 3-7   Wednesday through Sunday show the frontal activity through the period looks like just one front off shore next Sunday.

Forecast For The South Willamette Valley Including Eugene-Springfield:

  • Mostly cloudy tonight,
  • Mostly cloudy start, partly cloudy and a bit cooler Monday afternoon and evening, mostly cloudy late Monday night,
  • Some AM clouds, sunny and a bit cooler Tuesday afternoon, partly cloudy in the evening, mostly cloudy with a slight (20%) chance of rain late at night,
  • A mix of clouds and sun and a bit cooler with a slight (20%) chance of showers Wednesday, then becoming mostly clear Wednesday night.
  • lows 53-46 warming to 48 Tuesday night cooling to 45 Wednesday night highs 76-73.
  • Mostly sunny and a bit warmer Thursday and Friday, partly cloudy both nights,
  •  A mix of clouds and sun and a bit cooler with a slight (20%) of rain Saturday, mostly cloudy with a slight (20%) chance  of rain late Saturday night,
  • Then mostly cloudy and a bit cooler with a slight (20%) chance of rain Sunday.
  • highs 78-80 cooling to 73 Sunday lows 46-49.  (seasonal averages high 78 low 48)

Forecast for the Umpqua Valley including Roseburg:

  • Partly cloudy with evening haze, mostly cloudy and hazy late tonight,
  • AM clouds and haze, sunny and a bit cooler Monday afternoon, partly cloudy Monday night,
  • Sunny and a bit cooler Tuesday, mostly clear at night,
  • Mostly cloudy with a slight (20%) chance of AM showers, mostly sunny and a bit cooler with a slight (20%) chance of showers Wednesday afternoon, then mostly clear Wednesday night.
  • lows 54-48 highs 82-75.
  • Mostly sunny and a bit warmer Thursday and Friday, mostly clear both nights,
  • Partly cloudy with a slight (20%) chance of showers and a bit cooler Saturday afternoon, mostly cloudy with a slight (20%) chance of showers late Saturday night,
  • Then mostly cloudy with a slight (20%) chance of showers Sunday.
  • highs 78-82 cooling to 75 Sunday  lows 49-52. (seasonal averages high 80 low 52)

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

  • Mostly cloudy with evening coastal haze and patchy coastal fog late tonight while mostly cloudy and hazy inland tonight with patchy fog late,
  • AM clouds and patchy fog, sunny and a bit warmer Monday afternoon, partly cloudy Monday night with patchy inland fog late,
  • Sunny and a bit cooler Tuesday, mostly clear with a slight (20%) chance of showers Tuesday night,
  • Mostly sunny with a slight (20%) chance of showers Wednesday, then becoming mostly clear Wednesday night.
  • lows 48-52 highs 73-72.
  • Mostly sunny and a bit warmer Thursday, mostly clear Thursday night,
  • Mostly sunny and a bit warmer Friday, mostly clear in the evening, partly cloudy with a slight (20%) chance of showers late at night,
  • Partly cloudy with a slight (20%) chance of AM showers, mostly cloudy and a bit cooler with a slight (20%) chance of showers Saturday afternoon, mostly cloudy with a slight (20%) chance of showers Saturday night,
  • Then mostly cloudy with a slight (20%) chance of showers Sunday.
  •  highs 75-72 lows near 52. (seasonal averages high 67 low 51)

Forecast for the Northern Oregon Cascades including Willamette Pass:

  • Mostly cloudy tonight,
  • Cloudy start, partly cloudy and a bit cooler Monday afternoon and evening, mostly cloudy late Monday night,
  • Some AM clouds, sunny and a bit cooler Tuesday afternoon, partly cloudy with a slight (20%) chance of showers late at night,
  • A mix of clouds and sun with a good (50%) chance of showers and a bit cooler Wednesday, partly cloudy with a slight (20%) chance of evening showers, then just partly cloudy late Wednesday night.
  • free air freezing level 13,000 ft. tonight through Monday night, 12,000 ft. Tuesday, snow level 7,500 ft. late Tuesday night, then 7,000 ft. Wednesday and Wednesday night.
  • lows 49-35 highs 67-55.
  • Partly cloudy with a slight (20%) chance of showers and a bit warmer Thursday, partly cloudy Thursday night,
  • Mostly sunny and a bit warmer Friday, partly cloudy at night,
  • Partly cloudy with a slight (20%) chance of AM rain, just partly cloudy and a bit cooler Saturday afternoon, mostly cloudy with a slight (20%) chance of evening rain, just mostly cloudy late Saturday night,
  • Then mostly cloudy and a bit cooler with a slight (20%) chance of rain Sunday.
  • snow level 7,000 ft. Thursday, free air freezing level 10,000 ft. Thursday night, 11,000 ft. Friday, 12,000 ft. Friday night, then snow level above 8,000 ft. Saturday through Sunday.
  • highs 56-64 cooling  to 59 Sunday lows 37-39.