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Tim Chuey Weather

by | Oct 20, 2023 | Weather

October 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

  • NONE AT THIS TIME.

HEALTH ADVISORIES

  • A RECREATIONAL USE HEALTH ADVISORY IS IN EFFECT FOR LAKE  EWAUNA 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 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 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 ICONTINUES IN EFFECT FOR ARRONS LAKE, BUT HAS BEEN LIFTED FOR 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

An Upper Level High Pressure Ridge (“Arch” shape) is shifting away from us allowing frontal activity. The graphics for days 1-3  show a frontal system moving into the Pacific Northwest bringing rain and cooler temperatures. The graphics for days 3-7  Monday through Friday show frontal activity in the Pacific Northwest Wednesday through Friday.

Forecast For The South Willamette Valley Including Eugene-Springfield:

  • Mostly cloudy with patchy fog late tonight,
  • Patchy AM fog, cloudy and a bit warmer Saturday, a slight (20%) chance of evening showers, showers becoming likely (70%) late Saturday night (under 0.10 in. of rain possible),
  • Mostly cloudy and a bit cooler with showers Sunday (under 0.10 in. of rain possible), mostly cloudy with a good (50%) of evening showers, a slight (20%) chance of showers late at night,
  • Mostly cloudy with a slight (20%) chance of AM showers, mostly cloudy and a bit cooler Monday afternoon, then mostly cloudy Monday night.
  • lows 50-52 cooling to 43 Monday night highs 65-62 warming to 64 Monday.
  • Mostly cloudy with a slight (20%) chance of AM rain, a good (50%) chance of rain and a bit cooler Tuesday, a good (50%) chance of rain Tuesday night,
  • A mix of clouds and sun with a (50%) chance of rain Wednesday, partly cloudy (50%) chance of rain Wednesday night,
  • A mix of clouds and sun with a good (50%) chance of rain Thursday, mostly cloudy with a good (50%) chance of rain Thursday night,
  • Then a mix of clouds and sun and a bit warmer with a (40%) chance of rain Friday.
  • highs 60-62 lows 42-44 (seasonal averages high 62 low 41)

Forecast for the Umpqua Valley including Roseburg:

  • Becoming mostly cloudy with patchy fog late tonight,
  • Patchy AM fog, mostly cloudy and a bit warmer Saturday, mostly cloudy with a (40%) chance of evening rain, rain likely (70%) late Saturday night (under 0.10 in. of rain possible),
  • Mostly cloudy with showers and a bit cooler Sunday (0.25 in. of rain possible), a good (50%) chance of showers at night (under 0.10 in. of rain possible),
  • Then mostly cloudy and a bit warmer Monday, mostly cloudy Monday night.
  • lows 55-46 highs 67-62 warming to 64 Monday.
  • Mostly cloudy and a bit cooler with a slight (20%) chance of showers Tuesday afternoon, a (40%) chance of showers Tuesday night,
  • Mostly cloudy with a (40%) chance of showers Wednesday, a slight (20%) chance of showers at night,
  • Mostly cloudy with a (30%) chance of showers Thursday and Thursday night,
  • Then mostly cloudy with a (30%) chance of showers Friday.
  • highs near 63 lows 45-47 (seasonal averages high 64 low 44)

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

  • Partly cloudy with patchy dense coastal fog tonight while mostly cloudy with patchy inland fog changing to areas of fog late tonight,
  • Patchy AM fog, mostly cloudy and a bit cooler with a slight (20%) chance of coastal afternoon rain while a slight (20%) chance of inland rain Saturday afternoon, evening coastal rain likely (70%) with coastal rain late Saturday night while inland rain Saturday night (under 0.10 in. of rain possible),
  • Mostly cloudy with AM rain, rain likely (70%) Sunday afternoon (0.10 in. of rain possible), a (40%) chance of rain at night,
  • Mostly cloudy Monday, then mostly cloudy Monday night.
  • lows 54-45 highs near 65.
  • Mostly cloudy with a slight (20%) chance of AM showers, partly cloudy with a slight (20%) of showers Tuesday afternoon, mostly cloudy with a (40%) chance of rain Tuesday night,
  • Mostly cloudy with a good (50%) chance of showers Wednesday, a (30%) chance of showers at night,
  • Mostly cloudy with a (30%) chance of showers Thursday, a (40%) chance of showers Thursday night,
  • Then mostly cloudy with a (40%) chance of showers Friday.
  • highs near 65 lows 47-45 warming back to 47 Thursday night. (seasonal averages high 62 low 46)

Forecast for the Northern Oregon Cascades including Willamette Pass:

  • Partly cloudy tonight,
  • A mix of clouds and sun  and a bit warmer Saturday, a good (50%) chance of evening showers, mostly cloudy with showers late Saturday night,
  • Mostly cloudy with showers and cooler Sunday, cloudy with evening showers, a slight (20%) chance of showers late at night,
  • Mostly cloudy with a slight (20%) chance of AM showers, partly cloudy and a bit warmer Monday afternoon, partly cloudy in the evening, mostly cloudy late Monday night.
  • free air freezing level 13,000 ft. falling to 12,000 ft. late tonight, 12,000 ft. Saturday, snow level above 8,000 ft. Saturday night, 8,000 ft. Sunday, 7,500 ft. Sunday night, 6,000 ft. Monday, then free air freezing level 11,000 ft. Monday night.
  • lows 45-34 highs 65-47 warming to 52 Monday.
  • A mix of clouds and sun with a slight (20%) chance of rain Tuesday, mostly cloudy with a good (50%) chance of rain Tuesday night,
  • Mostly cloudy with a good (50%) of rain and a bit cooler Wednesday, a (40%) chance of evening rain, partly cloudy  with a (40%) chance of rain at night,
  • A mix of clouds and sun with a good (50%) chance of rain and a bit cooler Thursday, mostly cloudy with good (50%) chance of rain Thursday night,
  • Mostly cloudy with a good (50%) chance of of AM snow, then a mix of clouds and sun and a bit cooler with a good (50%) chance of rain Friday afternoon.
  • snow level 6,000 ft. Tuesday, 7,000 ft. Tuesday night and Wednesday, then 6,000 ft. Wednesday night through Friday.
  • highs 52-44 lows near 32.