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Tim Chuey Weather

by | Sep 2, 2023 | Weather

September 4, 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

  • AN AIR QUALITY ALERT IS IN EFFECT UNTIL 2 PM TODAY FOR WILDFIRE SMOKE FOR COOS COUNTY AND DOUGLAS 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 Low Pressure Trough and surface cold fronts finally brought some rain to the Pacific Northwest. The precipitation has decreased the intensity of the wildfire smoke which can still push into the Pacific Northwest from various areas depending on the wind direction. The graphics for days 1-3  show a frontal system that will moving through Oregon today and Monday. The graphics for days 3-7   Wednesday through Sunday show frontal activity Wednesday and Thursday. Another cold front approaches from the far northwest next Saturday.

Forecast For The South Willamette Valley Including Eugene-Springfield:

  • Clouds and sun with a slight (20%) of AM showers, a mix of clouds and sun and  cooler with a good (50%) chance of showers this afternoon (under 0.10 in. of rain possible), showers likely (70%) late tonight (0.10 in. of rain possible),
  • Clouds and sun with AM showers likely (70%), a mix of clouds and sun and a bit cooler with a (30%) chance of showers Monday afternoon (Labor Day) (under 0.10 in. of rain possible), just partly cloudy at night,
  • Some AM clouds, mostly sunny and a bit warmer Tuesday, then mostly clear Tuesday night.
  • highs 77-74 warming to 76 Tuesday lows 58-50.
  • Mostly sunny and a bit warmer Wednesday, partly cloudy Wednesday night,
  • Mostly sunny and a bit warmer Thursday and Friday, mostly clear both nights,
  • Then mostly sunny and a bit cooler Saturday.
  • highs 77-82 cooling to 79 Saturday lows near 52 (seasonal averages high 82 low 50)

Forecast for the Umpqua Valley including Roseburg:

  • Mostly cloudy and a bit cooler with a (40%) chance showers today (under 0.10 in. of rain possible), cloudy with a (40%) chance of showers tonight (0.10 in. of rain possible) ,
  • Mostly cloudy with AM showers likely (70%), a bit cooler with a good (50%) chance of showers Monday afternoon (Labor Day) (under 0.10 in. of rain possible), becoming mostly clear at night,
  • Mostly sunny and a bit warmer Tuesday, then mostly clear Tuesday night.
  • highs 78-76 warming to 79 Tuesday lows 59-53.
  • Mostly sunny and a bit warmer Wednesday, Thursday, and Friday mostly clear each night,
  • Then mostly sunny and a bit cooler Saturday.
  • highs near 80-83 lows near 54. (seasonal averages high 84 low 55)

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

  • Patchy AM inland fog, mostly cloudy and a bit warmer with a slight (20%) chance of showers this afternoon (under 0.10 in. of rain possible), cloudy with a good (50%) chance of showers tonight (0.10 in. of rain possible),
  • Mostly cloudy with AM showers likely (70%), a bit cooler with a good (50%) of showers Monday afternoon (Labor Day) (under 0.10 in. of rain possible), becoming mostly clear at night,
  • Mostly sunny Tuesday, then mostly clear Tuesday night.
  • highs 75-73 lows 58-53.
  • Mostly sunny and a bit warmer Wednesday, mostly clear Wednesday night,
  • Mostly sunny Thursday, mostly clear Thursday night,
  • Mostly sunny and a bit cooler Friday, partly cloudy Friday night,
  • Then sunny and a bit warmer Saturday.
  •  highs 75-73 warming back to 75 Saturday lows near 55 (seasonal averages high 67 low 53)

Forecast for the Northern Oregon Cascades including Willamette Pass:

  • Clouds and sun with a (40%) chance of AM showers, a mix of clouds and sun and a bit warmer with showers likely (70%) this afternoon (under 0.10 in. of rain possible), mostly cloudy with evening showers likely (70%), showers likely (70%) tonight,
  • Mostly cloudy with AM showers likely (70%), a bit cooler with a good (50%) of showers Monday afternoon (Labor Day), just partly cloudy at night,
  • Mostly sunny and a bit warmer Tuesday, then mostly clear Tuesday night.
  • snow level above 8,000 ft. today through Monday, then free air freezing level 13,000 ft. Monday night through Tuesday night.
  • highs 62-58 warming to 67 Tuesday lows 44-38 warming to 42 Tuesday night .
  • Mostly sunny and a bit warmer Wednesday, mostly clear Wednesday night,
  • Mostly sunny and a bit warmer Thursday and Friday, mostly clear both nights,
  • Then mostly sunny and a bit cooler Saturday.
  • free air freezing level 13,000 ft. Wednesday through Saturday.
  • highs 67-72 cooling to 70 Saturday lows 40-45.