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Tim Chuey Weather

by | Aug 17, 2023 | Weather

August 18, 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 FROM 10 AM UNTIL 9 PM TODAY 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 TONIGHT FOR GUSTY WINDS AND LOW RELATIVE HUMIDITY FOR THE EAST SLOPES OF THE NORTHERN OREGON CASCADES, AND THE LOWER COLUMBIA BASIN OF OREGON.
  • AN AIR QUALITY ADVISORY FOR SMOKE IS IN EFFECT UNTIL 6 AM TODAY FOR THE SOUTH WILLAMETTE VALLEY, THE CASCADES FOOTHILLS IN LANE COUNTY, AND THE CASCADES IN LANE 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 today. The graphics for days 3-7   Sunday through Thursday show a frontal system moving into the Pacific Northwest Monday and Tuesday.

Forecast For The South Willamette Valley Including Eugene-Springfield:

  • Some AM clouds with possible dissipating smoky haze, sunny and a bit warmer this afternoon, clear this evening, partly cloudy late tonight,
  • 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.
  • highs 76-79 lows 54-56.
  • 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 Umpqua Valley including Roseburg:

  • Some AM clouds and hazy, sunny hazy and a bit cooler this afternoon, clear and hazy tonight,
  • Sunny and a bit warmer Saturday, mostly clear at night,
  • Sunny and a bit warmer Sunday, then partly cloudy Sunday night.
  • highs 89-94 lows 57-62.
  • 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:

  • Some AM clouds, sunny and a bit warmer this afternoon, clear this evening, partly cloudy late tonight,
  • 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.
  • highs 76-79 lows 54-56.
  • 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:

  • A mix of clouds with AM haze, sunny and a bit cooler this afternoon, mostly clear tonight,
  • 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.
  • free air freezing level 14000 ft. today, 15,000 ft. falling to 14,000 ft. late tonight, 14,000 ft. Saturday and Saturday night, then snow level above 8,000 ft. Sunday and Sunday night.
  • highs 77-80 cooling to 78 Sunday lows 50-52 cooling back to 50 Sunday night.
  • 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.