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Tim Chuey Weather

by | Aug 17, 2023 | Weather

August 17, 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 EXCESSIVE HEAT WARNING IS IN EFFECT UNTIL 11 PM TONIGHT FOR THE EASTERN COLUMBIA RIVER GORGE OF OREGON, THE LOWER COLUMBIA BASIN OF OREGON, THE JOHN DAY BASIN, THE FOOTHILLS OF THE NORTHERN BLUE MOUNTAINS OF OREGON, THE SOUTHERN BLUE MOUNTAINS OF OREGON, AND NORTH CENTRAL  OREGON.
  • A HEAT ADVISORY IS IN EFFECT UNTIL 11 PM TONIGHT FOR CENTRAL DOUGLAS COUNTY.
  • A HEAT ADVISORY IS IN EFFECT UNTIL 9 PM MDT TONIGHT FOR THE OREGON LOWER TREASURE VALLEY.
  • A RED FLAG WARNING IS IN EFFECT UNTIL 11 PM TODAY FOR THUNDERSTORMS PRODUCING ABUNDANT LIGHTNING FOR THE DESCHUTES NATIONAL FOREST AND THE MINUS SISTERS RANGER DISTRICT.
  • A RED FLAG WARNING IS IN EFFECT FROM 10 AM UNTIL 9 PM FRIDAY FOR WIND AND LOW RELATIVE HUMIDITY FOR THE EAST SLOPES OF THE CENTRAL OREGON CASCADES AND THE CENTRAL MOUNTAINS OF OREGON.
  • A RED FLAG WARNING IS IN EFFECT UNTIL 9 PM FRIDAY FOR GUSTY WINDS AND LOW RELATIVE HUMIDITY FOR THE EAST SLOPES OF THE NORTHERN OREGON CASCADES, AND THE LOWER COLUMBIA BASIN OF OREGON.
  • A RED FLAG WARNING IS IN EFFECT UNTIL 11 PM TONIGHT FOR ABUNDANT LIGHTNING ON DRY FUELS FOR THE UMPQUA NATIONAL FOREST, THE SOUTH CENTRAL OREGON DESERT INCLUDING THE BLM LAND IN EASTERN LAKE COUNTY AND WESTERN HARNEY COUNTY.
  • A RED FLAG WARNING IS IN EFFECT UNTIL 11 PM TONIGHT FOR ABUNDANT LIGHTNING  ON DRY FUELS FOR THE EASTERN ROGUE VALLEY.
  • AN AIR QUALITY ADVISORY FOR SMOKE IS IN EFFECT UNTIL 6 AM FRIDAY FOR THE SOUTH WILLAMETTE VALLEY, THE CASCADES FOOTHILLS IN LANE COUNTY, AND THE CASCADES IN LANE COUNTY.
  • AN AIR QUALITY ALERT IS IN EFFECT UNTIL 11 PM TODAY FOR JACKSON COUNTY.
  • AN AIR QUALITY ALERT IS IN EFFECT UNTIL 11 PM TONIGHT FOR KLAMATH COUNTY.
  • AN AIR QUALITY ALERT IS IS IN EFFECT UNTIL 11 PM TONIGHT FOR CROOK COUNTY AND DESCHUTES 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 to slowly cool our Hot temperatures. The graphics for days 1-3  show a cold front moving into the Pacific Northwest tonight and Friday. The graphics for days 3-7   Sunday through Thursday show a frontal system moving into the Pacific Northwest Tuesday and Wednesday.

Forecast For The South Willamette Valley Including Eugene-Springfield:

  • Partly cloudy tonight,
  • Some AM clouds, sunny and a bit cooler Friday, clear Friday night,
  • Sunny and a bit warmer Saturday, mostly clear at night,
  • Mostly sunny and a bit warmer Sunday, then partly cloudy Sunday night.
  • lows 59-52 warming to 58 Sunday night highs 87-93.
  • Some AM clouds, sunny and a bit cooler Monday, partly cloudy Monday night,
  • Mostly sunny and a bit cooler Tuesday, partly cloudy at night.
  • Some AM clouds, mostly sunny and a bit warmer Wednesday, mostly clear at night,
  • Then mostly sunny and a bit warmer Thursday.
  • highs 86-84 warming to 88 Thursday lows near 57.  (seasonal averages high 84 low 51)

Forecast for the Umpqua Valley including Roseburg:

  • Partly cloudy and hazy with a slight (20%) chance of thunderstorms tonight,
  • Some AM clouds and hazy, sunny hazy and a bit cooler Friday afternoon, clear and hazy Friday night,
  • Sunny and a bit warmer Saturday, mostly clear at night,
  • Sunny and a bit warmer Sunday, then partly cloudy Sunday night.
  • lows 63-57 warming to 56 Sunday night highs 89-94.
  • Partly cloudy and a bit cooler Monday, partly cloudy Monday night,
  • Partly cloudy and a bit warmer Tuesday, partly cloudy with a slight (20%) chance of evening showers, just partly cloudy late at night,
  • Then mostly sunny and a bit warmer Wednesday and Thursday, mostly clear Wednesday night.
  • highs 86-92 lows 62-58. (seasonal averages high 86 low 57)

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

  • Partly cloudy with evening coastal haze and mostly cloudy with coastal haze late tonight while becoming mostly cloudy with inland haze tonight,
  • Some AM clouds, sunny and a bit warmer Friday afternoon, clear in the evening, partly cloudy late Friday night,
  • Some AM clouds, sunny Saturday afternoon, mostly clear in the evening, partly cloudy at night,
  • Some AM clouds, sunny and a bit warmer Sunday afternoon, then partly cloudy Sunday night.
  • lows 58-54 warming to 56 Sunday night highs 76-79.
  • Partly cloudy and a bit cooler Monday, partly cloudy Monday night,
  • Partly cloudy and a bit warmer Tuesday, partly cloudy with a slight (20%) chance of showers at night,
  • Partly cloudy and a bit warmer Wednesday, partly cloudy Wednesday night,
  • Then sunny Thursday.
  •  highs near 75-77 lows near 56. (seasonal averages high 67 low 54)

Forecast for the Northern Oregon Cascades including Willamette Pass:

  • Partly cloudy and hazy with a slight (20%) chance of evening thunderstorms, mostly cloudy and hazy late tonight,
  • A mix of clouds with AM haze, sunny and a bit cooler Friday afternoon, mostly clear Friday night,
  • Mostly sunny and a bit warmer Saturday, partly cloudy at night,
  • Partly cloudy and a bit cooler with a slight (20%) chance of showers Sunday afternoon and Sunday night.
  • snow level above 8,000 ft. tonight, free air freezing level 14000 ft. Friday, 15,000 ft. falling to 14,000 ft. late Friday night, 14,000 ft. Saturday and Saturday night, then snow level above 8,000 ft. Sunday and Sunday night.
  • lows 54-50 warming to 52 Saturday night cooling back to 50 Sunday night highs 77-80 cooling to 78 Sunday.
  • A mix of clouds and sun and a bit cooler with a slight (20%) chance of showers Monday, mostly cloudy with a slight (20%) chance evening showers, partly cloudy late Monday night,
  • A mix of clouds and sun and a bit cooler with a slight (20%) chance of showers Tuesday afternoon, partly cloudy Tuesday night,
  • Partly cloudy and a bit warmer with a slight (20%) chance of showers Wednesday afternoon, partly cloudy Wednesday night,
  • Then mostly sunny and a bit warmer Thursday.
  • snow level above 8,000 ft. Monday through Wednesday, free air freezing level 13,000 ft. Wednesday night and Thursday.
  • highs 70-68 warming 73 Thursday lows 52-48.