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Tim Chuey Weather

by | Aug 19, 2023 | Weather

August 19, 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 9 PM SUNDAY FOR SIGNIFICANTLY UNSTABLE CONDITIONS FOR THE MT. HOOD NATIONAL FOREST WEST OF CASCADES CREST AND THE WILLAMETTE NATIONAL FOREST.
  • AN AIR QUALITY ADVISORY IS IN EFFECT UNTIL NOON SUNDAY FOR WILDFIRE SMOKE FOR EASTERN LANE COUNTY, NOT INCLUDING THE EUGENE-SPRINGFIELD AREA.
  • AN AIR QUALITY ALERT IS IN EFFECT UNTIL NOON SUNDAY FOR WILDFIRE SMOKE FOR KLAMATH COUNTY AND LAKE COUNTY.
  • AN AIR QUALITY ADVISORY IS IN EFFECT UNTIL NOON SUNDAY FOR WILDFIRE SMOKE FOR THE CASCADE FOOTHILLS IN LANE COUNTY AND THE CASCADES IN LANE COUNTY.
  • AN AIR QUALITY ADVISORY IS IN EFFECT UNTIL NOON SUNDAY FOR WILDFIRE SMOKE FOR JACKSON COUNTY AND JOSEPHINE COUNTY.
  • AN AIR QUALITY ADVISORY IS IN EFFECT UNTIL NOON SUNDAY FOR WILDFIRE SMOKE FOR CROOK COUNTY AND DESCHUTES COUNTY.
  • A FLOOD WATCH IS IN EFFECT FROM LATE SUNDAY NIGHT 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 SUNDAY MORNING THROUGH MONDAY EVENING FOR HARNEY COUNTY, BAKER COUNTY, MALHEUR COUNTY, AND THE OREGON LOWER TREASURE VALLEY.

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 Canadian wildfire smoke is pushing into the Pacific Northwest. The graphics for days 1-3  show a stationary front stuck to our east. The graphics for days 3-7   Tuesday through Saturday show a frontal system moving into the Pacific Northwest Tuesday.

Forecast For The South Willamette Valley Including Eugene-Springfield:

  • Mostly clear and hazy tonight,
  • AM haze and smoke, mostly sunny and a bit warmer and smoky Sunday afternoon, partly cloudy with evening smoke, hazy late Sunday night,
  • Clouds and sun with AM haze, a mix of clouds and sun and a bit cooler Monday afternoon, partly cloudy at night,
  • Some AM clouds, mostly sunny Tuesday afternoon, then mostly clear Tuesday night.
  • lows 54-52 highs 89-83.
  • Mostly sunny and a bit warmer Wednesday, mostly clear Wednesday night,
  • Mostly sunny and a bit warmer Thursday, partly cloudy at night,
  • Mostly sunny Friday, mostly clear Friday night,
  • Then mostly sunny and a bit cooler Saturday.
  • highs 87-93 cooling to 89 Saturday lows 56-59.  (seasonal averages high 84 low 51)

Forecast for the Umpqua Valley including Roseburg:

  • Clear tonight,
  • Sunny and warmer Sunday, mostly clear in the evening, mostly cloudy late Sunday night,
  • Mostly cloudy and cooler Monday, partly cloudy at night,
  • Some AM clouds, sunny with a slight (20%) chance of thunderstorms Tuesday afternoon, then clear Tuesday night.
  • lows 62-55 highs 93-80.
  • Sunny warmer Wednesday, clear Wednesday night,
  • Sunny and a bit warmer Thursday, mostly clear at night,
  • Mostly sunny and a bit cooler Friday, mostly clear Friday night,
  • Then sunny and a bit cooler Saturday.
  • highs 90-96 cooling to 92 Saturday lows 59-62. (seasonal averages high 86 low 57)

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

  • Mostly clear this evening, partly cloudy late tonight,
  • Some AM clouds, sunny and a bit warmer Sunday afternoon, partly cloudy in the evening, cloudy late Sunday night,
  • Mostly cloudy start, partly cloudy and a bit cooler Monday afternoon, partly cloudy at night,
  • Mostly sunny and a bit warmer Tuesday, then mostly clear Tuesday night.
  • lows 57-54 highs near 70.
  • Mostly sunny and a bit warmer Tuesday, mostly clear Tuesday night,
  • Sunny Wednesday, mostly clear Wednesday night,
  • Mostly sunny Thursday, mostly clear at night,
  • Mostly sunny and a bit cooler Friday, partly cloudy Friday night,
  • Then partly cloudy Saturday.
  •  highs near 79-77 lows near 56. (seasonal averages high 67 low 54)

Forecast for the Northern Oregon Cascades including Willamette Pass:

  • Partly cloudy hazy and smoky tonight,
  • Mostly sunny with AM smoke and haze, partly cloudy and a bit warmer Sunday afternoon with smoke and haze, partly cloudy with evening smoke, mostly cloudy and hazy with areas of smoke late Sunday night,
  • Mostly cloudy with AM smoke and haze, mostly cloudy and a bit cooler Monday afternoon,  mostly cloudy with a slight (20%) chance evening showers, then partly cloudy with a slight (20%) chance of showers late at night,
  • Partly cloudy and a bit cooler with a slight (20%) chance of showers Tuesday, then mostly clear Tuesday night.
  • free air freezing level 14,000 ft. tonight through Monday, snow level above 8,000 ft. Monday night and Tuesday, then free air freezing level 12,000 ft. Tuesday night,
  • lows 54-42 highs 77-66.
  • Mostly sunny and a bit warmer Wednesday, mostly clear Wednesday night,
  • Mostly sunny and a bit warmer Thursday, partly cloudy with a slight (20%) chance of evening showers, just partly cloudy at night,
  • Then mostly sunny Friday and Saturday, mostly clear Friday night.
  • free air freezing level 13,000 ft. Wednesday through Thursday, snow level above 8,000 ft. Thursday night, free air freezing level 13,000 ft. Friday, then 14,000 ft. Friday night and Saturday.
  • highs 74-78 lows 44-48.