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Tim Chuey Weather

by | Aug 21, 2023 | Weather

August 21, 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 ADVISORY IS IN EFFECT UNTIL 3 PM TUESDAY FOR WILDFIRE SMOKE FOR EASTERN LANE COUNTY, NOT INCLUDING THE EUGENE-SPRINGFIELD AREA, THE CASCADE FOOTHILLS IN LANE COUNTY , AND THE CASCADES IN LANE COUNTY.
  • *AN AIR QUALITY ALERT IS IN EFFECT UNTIL 5 PM TUESDAY FOR WILDFIRE SMOKE FOR DOUGLAS COUNTY, JACKSON COUNTY, JOSEPHINE COUNTY,  AND KLAMATH COUNTY.
  • AN AIR QUALITY ADVISORY IS IN EFFECT UNTIL 5 PM TUESDAY FOR WILDFIRE SMOKE FOR CROOK COUNTY, DESCHUTES COUNTY, JEFFERSON COUNTY, MORROW COUNTY, SHERMAN COUNTY, UMATILLA COUNTY, WASCO COUNTY, AND WHELLER COUNTY.
  • AN AIR QUALITY ADVISORY IS IN EFFECT UNTIL 5 PM TUESDAY FOR THE NORTHERN OREGON CASCADES, THE UPPER HOOD RIVER VALLEY, THE WESTERN COLUMBIA RIVER GORGE, AND THE CENTRAL COLUMBIA RIVER GORGE OF OREGON.
  • AN AIR QUALITY ADVISORY IS IN EFFECT UNTIL 5 PM TUESDAY FOR HOOD RIVER COUNTY.
  • A FLOOD ADVISORY IS IN EFFECT UNTIL 11 PM TONIGHT FOR UNION COUNTY AND WALLOWA COUNTY.
  • A FLOOD WATCH IS IN EFFECT THROUGH TUESDAY AFTERNOON FOR THE GRANDE RONDE VALLEY, WALLOWA COUNTY, THE NORTHERN BLUE MOUNTAINS OF OREGON, AND THE SOUTHERN BLUE MOUNTAINS OF OREGON.
  • A FLOOD WATCH IS IN EFFECT UNTIL MIDNIGHT MDT TONIGHT FOR BAKER COUNTY.

HEALTH ADVISORIES

  • A RECREATIONAL USE HEALTH ADVISORY HAS BEEN ISSUED FOR CULLABY LAKE IN CLATSOP  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 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 IS IN EFFECT FOR ARRONS LAKE, 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

Upper Level Low Pressure off the California coast will help move moisture from Pacific Hurricane Hilary from the south across the eastern sections of Oregon. Meanwhile wildfire smoke is pushing into the Pacific Northwest from various directions depending on the wind direction. The graphics for days 1-3  show a cold front moving through Oregon. The graphics for days 3-7   Thursday through Monday show a frontal system moving through the Pacific Northwest Wednesday. A frontal system will be moving southward along the California coast Saturday and next Sunday.

Forecast For The South Willamette Valley Including Eugene-Springfield:

  • Partly cloudy tonight,
  • Some AM clouds with patchy fog, sunny and a bit cooler Tuesday afternoon, mostly clear with patchy fog late Tuesday night,
  • Mostly sunny and a bit warmer Wednesday, clear at night,
  • Sunny and a bit warmer Thursday, then mostly clear Thursday night.
  • lows 52-58 highs 78-93.
  • Mostly sunny and a bit cooler Friday afternoon, mostly clear Friday night,
  • Mostly sunny and a bit cooler Saturday, mostly cloudy late at night,
  • Some AM clouds, mostly sunny and a bit cooler Sunday, partly cloudy Sunday night,
  • Partly cloudy with patchy AM fog, then partly cloudy and a bit cooler Monday afternoon.
  • highs 92-84 lows near 57.  (seasonal averages high 84 low 51)

Forecast for the Umpqua Valley including Roseburg:

  • Partly cloudy and hazy this evening, mostly cloudy and hazy late tonight,
  • Mostly cloudy start, sunny and hazy Tuesday afternoon, clear Tuesday night,
  • Sunny and a bit warmer Wednesday, clear at night,
  • Sunny and a bit warmer Thursday, mostly cloudy Thursday night.
  • lows 57-54 warming to 62 Thursday night highs 82-96.
  • Mostly sunny and a bit cooler Friday, mostly clear Friday night,
  • Some AM clouds, sunny and a bit cooler Saturday, mostly clear in the evening, partly cloudy late at night,
  • Some AM clouds, sunny and a bit cooler Sunday afternoon.
  • highs 92-87 lows 59-55. (seasonal averages high 85 low 57)

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

  • Mostly cloudy and hazy tonight,
  • AM clouds with inland haze, sunny and a bit warmer Tuesday afternoon, mostly clear Tuesday night,
  • AM clouds, sunny and a bit warmer Wednesday, mostly clear at night,
  • Mostly sunny and a bit warmer Thursday, mostly clear in the evening, then partly cloudy with a slight (20%) chance of thunderstorms late Thursday night.
  • lows near 54 highs 75-79.
  • Sunny and a bit cooler Friday, partly cloudy Friday night,
  • Partly cloudy and a bit cooler Saturday, partly cloudy at night,
  • Partly cloudy with a slight (20%) chance of AM thunderstorms, partly cloudy and a bit cooler Sunday afternoon.
  •  highs near 77-75 lows near 57. (seasonal averages high 67 low 54)

Forecast for the Northern Oregon Cascades including Willamette Pass:

  • Mostly cloudy and hazy with areas of evening smoke, partly cloudy and hazy with areas of smoke and a slight (20%) chance showers late tonight,
  • Partly cloudy and hazy with a slight (20%) chance of AM showers, partly cloudy and hazy and a bit cooler Tuesday afternoon, mostly clear Tuesday night,
  • Sunny and a bit warmer Wednesday, mostly clear at night,
  • Mostly sunny and a bit warmer Thursday, partly cloudy with (40%) chance  of evening showers and a slight (20%) chance of thunderstorms, then a slight (20%) chance of showers late Thursday night.
  • free air freezing level 13,000 ft. this evening, 11,000 ft. Tuesday afternoon, 11,000 ft. rising to 12,000 ft. Tuesday night, 12,000 ft. rising to 13,000 ft. Wednesday,  13,000 ft. rising to 14,000 ft. late Wednesday night, 14,000 ft. Thursday, then snow level above 8,000 ft. Thursday night.
  • lows 46-40 warming  to 52 Thursday night highs 64-80.
  • Partly cloudy with a slight (20%) chance of AM showers,  a bit cooler with a (40%) chance of showers and a slight (20%) chance of thunderstorms Friday afternoon, partly cloudy with a slight (20%) chance of evening showers, just partly cloudy late Friday night,
  • Mostly sunny and a bit warmer with a slight (20%) chance of showers Saturday, mostly clear at night,
  • Mostly sunny and a bit cooler with a slight (20%) chance of showers Sunday, mostly clear Sunday night,
  • Some AM clouds with a slight (20%) chance of showers, then mostly sunny and a bit cooler with a slight (20%) chance of showers Monday.
  • snow level above 8,000 ft. Friday through Monday.
  • highs 75-78 cooling to 74 Monday lows near 49.