Follow EDN on Social Media |

(+)Contact Us  (+)Got A Hot Tip?  (+)Join The EDN Team

Tim Chuey Weather

by | Aug 20, 2023 | Weather

August 20, 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 TONIGHT 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 3 PM TUESDAY FOR WILDFIRE SMOKE FOR EASTERN LANE COUNTY, NOT INCLUDING THE EUGENE-SPRINGFIELD AREA.
  • 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 NOON TODAY FOR WILDFIRE SMOKE FOR THE CASCADE FOOTHILLS IN LANE COUNTY AND THE CASCADES IN LANE 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 MONDAY FOR MULTNOMAH COUNTY AND HOOD RIVER COUNTY.
  • A FLOOD WATCH IS IN EFFECT FROM LATE TONIGHT 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 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 cold front moving through Monday and Tuesday. The graphics for days 3-7   Wednesday through Sunday 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 with areas of evening smoke, partly cloudy and hazy late tonight,
  • Hazy with AM clouds and sun, a mix of clouds and sun and a bit cooler Monday afternoon, partly cloudy Monday night,
  • Some AM clouds with patchy fog, sunny Tuesday afternoon, mostly clear with patchy fog late at night,
  • Mostly sunny and a bit warmer Wednesday, then clear Wednesday night.
  • lows 55-52 warming to 54 Wednesday highs 83-85.
  • Mostly sunny and a bit warmer Thursday, mostly clear Thursday night,
  • Mostly sunny and a bit cooler Friday, partly cloudy at night,
  • Some AM clouds, sunny and a bit cooler Saturday, partly cloudy Saturday night,
  • Then partly cloudy and a bit cooler Sunday.
  • highs 92-85 lows near 57.  (seasonal averages high 84 low 51)

Forecast for the Umpqua Valley including Roseburg:

  • Partly cloudy with areas of evening smoke, mostly cloudy with areas of smoke late tonight,
  • Mostly cloudy and hazy with patchy smoke and cooler Monday, partly cloudy and hazy with a slight (20%) chance chance of evening thunderstorms, mostly cloudy and hazy with a slight (20%) chance of showers late Monday night,
  • Mostly cloudy with a slight (20%) chance of AM showers, sunny and hazy with a slight (20%) chance of thunderstorms Tuesday afternoon, clear at night,
  • Sunny and a bit warmer Wednesday, then clear Wednesday night.
  • lows 59-54 warming to 57 Wednesday night highs 83-87.
  • Sunny and a bit warmer Thursday, mostly cloudy with a slight (20%) of evening thunderstorms, just mostly cloudy late Thursday night,
  • Mostly sunny and a bit cooler Friday, mostly clear at night,
  • Some AM clouds, sunny and a bit cooler Saturday, partly cloudy Saturday night,
  • Then partly cloudy and a bit cooler Sunday.
  • highs 95-87 lows near 60. (seasonal averages high 86 low 57)

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

  • Partly cloudy with areas of evening coastal smoke and hazy with patchy coastal smoke late tonight while partly cloudy with areas evening inland smoke and mostly cloudy and hazy with patchy inland smoke late tonight,
  • Mostly cloudy and hazy and a bit warmer Monday and Monday night,
  • AM clouds with inland haze, sunny and a bit warmer Tuesday afternoon, clear in the evening, mostly cloudy late at night,
  • AM clouds, sunny and a bit warmer Wednesday, then mostly clear Wednesday night.
  • lows 56-54 highs 74-78.
  • Mostly sunny Thursday, mostly clear in the evening, partly cloudy with a slight (20%) chance of showers late Thursday night,
  • Sunny and a bit cooler Friday, partly cloudy at night,
  • Partly cloudy and a bit cooler Saturday and in the evening, mostly cloudy Saturday night,
  • Then partly cloudy Sunday.
  •  highs near 79-75 lows near 57. (seasonal averages high 67 low 54)

Forecast for the Northern Oregon Cascades including Willamette Pass:

  • Mostly cloudy with areas of smoke tonight,
  • Cloudy with areas of AM smoke, cloudy and  hazy with areas of smoke a bit cooler Monday afternoon, mostly cloudy with a slight (20%) chance showers Monday night,
  • AM clouds and sun with a (40%) chance of showers, a mix of clouds and sun and a bit cooler Tuesday afternoon, mostly clear at night,
  • Mostly sunny and a bit warmer Wednesday, then mostly clear Wednesday night.
  • free air freezing level 14,000 ft. tonight, snow level above 8,000 ft. Monday through Tuesday, free air freezing level 12,000 ft. Tuesday night and Wednesday, then 14,000 ft. Wednesday night.
  • lows 52-42 warming  to 47 Wednesday night highs 72-64 warming back to 52 Wednesday.
  • Mostly sunny and a bit warmer Thursday, partly cloudy with a slight (20%) chance of evening showers, just partly cloudy late Thursday night,
  • Partly cloudy with a slight (20%) chance of showers and a bit cooler Friday afternoon, partly cloudy at night,
  • Mostly sunny start, partly cloudy and a bit cooler Saturday afternoon and Saturday night,
  • Then partly cloudy Sunday.
  • free air freezing level 14,000 ft. Thursday, snow level above 8,000 ft. Thursday night and Friday, then free air freezing level 13,000 ft. Friday night through Sunday.
  • highs 80-74 lows 52-48.