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Tim Chuey Weather

by | Sep 18, 2023 | Weather

September 18, 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 UNTIL 8 PM THIS EVENING FOR WIND AND LOW RELATIVE HUMIDITY FOR THE LOWER COLUMBIA BASIN.
  • A BEACH HAZARDS STATEMENT IS IN EFFECT FOR DANGEROUS SNEAKER WAVES THROUGH THIS EVENING FOR THE SOUTH CENTRAL OREGON COAST AND THE CURRY COUNTY COAST.
  • A BEACH HAZARDS STATEMENT IS IN EFFECT FOR DANGEROUS SNEAKER WAVES THROUGH THIS EVENING FOR THE NORTH OREGON COAST AND THE CENTRAL OREGON COAST.

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 overnight and Tuesday. The graphics for days 3-7   Thursday through Monday show the frontal activity Sunday and Monday with a complex frontal system to our northwest Monday.

Forecast For The South Willamette Valley Including Eugene-Springfield:

  • Partly cloudy tonight,
  • Mostly sunny Tuesday, partly cloudy with a good (50%) chance of rain Tuesday night (under 0.10 in. of rain possible),
  • Clouds and sun with a good (50%) chance of AM rain, a mix of clouds and sun and a bit cooler with a slight (20%) chance of rain Wednesday afternoon, becoming mostly clear at night,
  • Mostly sunny and a bit warmer Thursday, then clear Thursday night.
  • lows 45-48 cooling back to 45 Wednesday night warming to 47 Thursday night highs 75-72 warming back to 75 Thursday.
  • Mostly sunny start, partly cloudy and a bit warmer Friday afternoon, a (30%) chance of rain Friday night,
  •  A mix of clouds and sun and a bit cooler with a (30%) of rain Saturday, mostly cloudy with a slight (20%) chance of rain at night,
  • A mix of clouds and sun and a bit warmer with a slight (20%) chance of rain Sunday, mostly cloudy with a slight (20%) chance of evening rain, partly cloudy with a slight (20%) chance of rain late Sunday night,
  • Clouds and sun with a slight (20%) chance of AM rain, a mix of clouds and sun and a bit warmer with a (40%) chance of rain Monday afternoon.
  • highs 77-75 warming to 79 Monday lows near 50.  (seasonal averages high 77 low 47)

Forecast for the Umpqua Valley including Roseburg:

  • Mostly clear this evening, partly cloudy late tonight,
  • Sunny and a bit cooler Tuesday, mostly clear with a slight (20%) chance of rain Tuesday night,
  • Mostly cloudy with a slight (20%) chance of AM rain, partly cloudy and a bit cooler Wednesday afternoon, mostly clear at night,
  • Mostly sunny and a bit warmer Thursday, then mostly clear Thursday night.
  • lows near 49 highs 77-73 warming to 80 Thursday.
  • Mostly sunny and a bit warmer Friday, partly cloudy with a slight (20%) chance of rain Friday night,
  • Partly cloudy with a slight (20%) chance of rain Saturday and at night,
  • Partly cloudy and a bit warmer with a slight (20%) chance of rain Sunday, mostly cloudy with a slight (20%) chance of rain Sunday night,
  • Some AM clouds with a (30%) chance of rain, then mostly cloudy and a bit warmer with a (30%) chance of rain Monday afternoon.
  • highs 80-83  lows near 52. (seasonal averages high 80 low 52)

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

  • Mostly clear with evening haze, partly cloudy tonight with patchy fog late,
  • Patchy AM fog, sunny and hazy with patchy fog and a bit warmer Tuesday afternoon, mostly clear with patchy evening fog, partly cloudy with patchy fog and a slight (20%) chance of rain late Tuesday night,
  • Partly cloudy with a slight (20% ) of AM rain, mostly sunny Wednesday afternoon with a slight (20%) chance of coastal rain, becoming mostly clear at night,
  • Sunny Thursday, then mostly clear Thursday night.
  • lows 49-52 cooling back to 50 Wednesday night warming back to 52 Thursday night highs near 72.
  • Mostly sunny Friday and Saturday, mostly clear both nights,
  • Mostly sunny and a bit warmer Sunday, partly cloudy Sunday night,
  • Then partly cloudy and a bit warmer Monday.
  •  highs 72-75 lows near 52. (seasonal averages high 67 low 51)

Forecast for the Northern Oregon Cascades including Willamette Pass:

  • Partly cloudy tonight,
  • Mostly sunny and a bit cooler Tuesday, partly cloudy with a good (50%) chance of rain Tuesday night,
  • Clouds and sun with a good (50%) chance of AM rain, a mix of clouds and sun and a bit cooler with a slight (20%) chance of showers Wednesday afternoon, partly cloudy with a slight (20%) chance of evening showers, just partly cloudy late at night,
  • A mix of clouds and sun with a slight (20%) chance of showers Thursday, then partly cloudy Thursday night.
  • free air freezing level 13,000 ft. tonight, 12,000 ft. Tuesday, snow level 7,000 ft. Tuesday night, 6,500 ft. Wednesday and Wednesday night, 7,000 ft. Thursday, then free air freezing level 8,000 ft. Thursday night.
  • lows 37-33 warming to warming to 35 Thursday night highs 64-52.
  • Mostly sunny and a bit warmer Friday, partly cloudy with a slight (20%) chance of rain late Friday night,
  • Partly cloudy with a slight (20%) chance of  rain Saturday and in the evening, just partly cloudy  late at night,
  • Partly cloudy and a bit warmer with a slight (20%) chance of rain Sunday and Sunday night,
  • Partly cloudy with a slight (20%) chance of AM rain, then a bit warmer with a (40%) chance of rain Monday afternoon.
  • free air freezing level 11,000 ft. Friday, snow level above 8,000 ft. Friday night, 8,000 ft. Saturday, then above 8,000 ft. Saturday night through Sunday night.
  • highs 62-69 lows 38-44.