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Tim Chuey Weather

by | Aug 29, 2023 | Weather

August 30, 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 NOON THURSDAY FOR JOSEPHINE COUNTY AND KLAMATH COUNTY.
  • AN AIR QUALITY ADVISORY IS IN EFFECT UNTIL NOON THURSDAY FOR WILDFIRE SMOKE FOR DESCHUTES COUNTY.
  • AN AIR QUALITY ADVISORY IS IN EFFECT UNTIL 6 PM TODAY FOR CROOK 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 looks like it will be finally bringing some rain to the Pacific Northwest. The precipitation should decrease 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 moved through Oregon. The graphics for days 3-7   Saturday through Wednesday show frontal activity Monday.

Forecast For The South Willamette Valley Including Eugene-Springfield:

  • Partly cloudy with a good (50%) chance of AM showers, a mix of clouds and sun and slightly warmer with a slight (20%) chance of showers this afternoon, partly cloudy with a slight (20%) chance of evening showers, mostly cloudy with a slight (20%) chance of showers late tonight,
  • Mostly cloudy and a bit cooler with showers likely (70%) Thursday and in the evening, a (30%) chance of showers late at night,
  • A mix of clouds and sun and warmer with a good (50%) chance of showers Friday, then partly cloudy with a slight (20%) chance of showers late Friday night.
  • highs 78-72 warming to 77 Friday lows near 56.
  • Partly cloudy with a slight (20%) chance of AM showers, a bit warmer with a (30%) chance of showers Saturday afternoon, partly cloudy with a good (50%) chance of showers Saturday night,
  • A mix of clouds and sun and a bit cooler with a good (50%) chance of showers Sunday, partly cloudy with a (40%) chance of showers at night,
  • Clouds and sun with a (30%) chance of AM showers, a bit cooler with a slight (20%) chance of showers Monday afternoon (Labor Day), just partly cloudy Monday night,
  • Then mostly sunny and a bit warmer Tuesday.
  • highs 82-76 warming to 78 Tuesday lows 57-50.  (seasonal averages high 82 low 50)

Forecast for the Umpqua Valley including Roseburg:

  • AM clouds and hazy, sunny and hazy and a bit warmer this afternoon, mostly clear and hazy with patchy evening smoke, mostly cloudy and hazy with a slight (20%) chance of showers late tonight,
  • Mostly cloudy with AM haze, a bit cooler with a (30%) chance of showers Thursday afternoon, evening showers likely (70%), mostly cloudy with a good (50%) chance  of showers late at night,
  • Mostly cloudy with a good (50%) chance of showers and a bit warmer Friday afternoon, then partly cloudy with a (30%) chance of showers late Friday night.
  • highs 82-76 warming to 78 Friday lows near 58.
  • Partly cloudy and a bit warmer with a (30%) chance of showers Saturday, mostly cloudy with a slight (20%) chance of showers Saturday night,
  • Mostly cloudy and a bit cooler with a (30%) chance showers Sunday, a slight (20%) chance of showers at night,
  • Mostly cloudy with a slight (20%) chance of AM showers, partly cloudy and a bit cooler with a slight (20%) chance of showers Monday afternoon (Labor Day), becoming mostly clear Monday night,
  • Then mostly sunny and a bit warmer Tuesday.
  • highs 82-77 warming to 82 Tuesday lows 59-54. (seasonal averages high 84 low 56)

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

  • Some AM clouds, sunny and a bit warmer with inland haze this afternoon, partly cloudy with inland evening haze, mostly cloudy with a (30%) chance of coastal showers late at night while a slight (20%) chance of inland showers late tonight,
  • Mostly cloudy with a (40%) chance of showers and a bit cooler Thursday, a (40%) chance of showers at night,
  • Mostly cloudy and a bit warmer with a good (50%) chance of showers Friday,  then a good (50%) chance of showers Friday night.
  • highs 77-73 warming to 75 Friday lows near 58.
  • Mostly cloudy with a (30%) chance of showers Saturday, a (40%) chance of showers Saturday night,
  • Mostly cloudy with a (40%) chance of showers and a bit cooler Sunday, a (30%) chance of showers at night,
  • Partly cloudy with a slight (20%) of showers and a bit cooler Monday (Labor Day), just partly cloudy Monday night,
  • Then sunny and a bit warmer Tuesday.
  •  highs 75-72 warming to 74 Tuesday lows 57-55. (seasonal averages high 68 low 53)

Forecast for the Northern Oregon Cascades including Willamette Pass:

  • Partly cloudy with a slight (20%) chance of AM showers, becoming mostly sunny and a bit warmer this afternoon, mostly clear this evening, mostly cloudy with a good (50%) chance of showers late tonight.
  • Mostly cloudy with a good (50%) chance of showers and a bit cooler Thursday, showers likely (70%) at night,
  • Mostly cloudy and a bit cooler with showers likely (70%) Friday and a slight (20%) chance of afternoon thunderstorms, mostly cloudy with a good (50%) chance of evening showers and a slight (20%) chance of thunderstorms, then partly cloudy with a slight (20%) chance of showers late Friday night.
  • snow level above 8,000 ft. tonight through Friday night.
  • highs 65-58 lows near 44.
  • Clouds and sun with a slight (20%) chance of AM showers, a mix of clouds and sun and a bit warmer with a good (50%) chance of showers and a slight (20%) chance of thunderstorms Saturday afternoon, mostly cloudy with a (40%) chance of evening showers and a slight (20%) chance of thunderstorms, partly cloudy with a slight (20%) chance of showers late Saturday night,
  • A mix of clouds and sun and a bit cooler with a (40%) chance of showers Sunday, partly cloudy with a (40%) chance of evening showers, a slight (20%) chance of showers at night,
  • A mix of clouds and sun and a bit cooler with a slight (20%) chance of showers Monday (Labor Day), just partly cloudy Monday night,
  • Some AM clouds, then mostly sunny and a bit warmer Tuesday afternoon.
  • snow level above 8,000 ft. Saturday through Monday, then free air freezing level 13,000 ft. Monday night and Tuesday.
  • highs 65-59 warming to 64 Tuesday lows 45-39.