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Tim Chuey Weather

by | Oct 19, 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) will start some clearing and a warming trend beginning. The graphics for days 1-3  show a frontal system moving toward the Pacific Northwest through Saturday. 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 AM fog, partly cloudy and cooler with lingering patchy fog this afternoon, partly cloudy tonight,
  • Mostly cloudy and a bit warmer Saturday, mostly cloudy with rain likely (70%) at night (under 0.10 in. of rain possible),
  • Mostly cloudy and a bit cooler with rain and a bit cooler Sunday, then mostly cloudy with rain likely (70%) Sunday night.
  • highs 64-67 cooling to 63 Sunday lows 53 cooling to 50.
  • Mostly cloudy with a slight (20%) chance of rain Monday, partly cloudy with a slight (20%) chance of rain Monday night,
  • Mostly cloudy with a good (50%) chance of rain and a bit cooler Tuesday, rain likely (70%) at night,
  • A mix of clouds and sun and a bit cooler with a (50%) chance of rain Wednesday, mostly cloudy with a good (50%) chance of evening rain, partly cloudy with a good (50%) chance of rain late Wednesday night,
  • Then a mix of clouds and sun with a (40%) chance of rain Thursday.
  • highs 63-60 lows near 44 (seasonal averages high 63 low 41)

Forecast for the Umpqua Valley including Roseburg:

  • Mostly cloudy with widespread AM fog, just mostly cloudy and a bit warmer this afternoon, partly cloudy with widespread evening fog, mostly cloudy with widespread fog late tonight,
  • Mostly cloudy and a bit cooler Saturday, mostly cloudy with a good (50%) chance of rain at night (under 0.10 in. of rain possible),
  • Mostly cloudy with AM rain likely (70%), a bit cooler with a showers and a slight (20%)  of thunderstorms Sunday afternoon, then a (40%) chance of rain Sunday night.
  • highs 78-70 lows 54-52.
  • Mostly cloudy Monday and Monday night,
  • Mostly cloudy and a bit warmer with a slight (20%) chance of rain Tuesday afternoon, a good (50%) chance of rain at night,
  • Mostly cloudy with a (40%) chance of rain and a bit cooler Wednesday, a (30%) chance of rain Wednesday night,
  • Then mostly cloudy and a bit warmer with a slight (20%) chance of rain Thursday.
  • highs 62-59 lows 52-47 (seasonal averages high 65 low 44)

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

  • Mostly cloudy with patchy AM coastal fog while widespread AM inland fog, just mostly cloudy and a bit warmer this afternoon, partly cloudy with widespread evening and late night fog tonight,
  • Cloudy and cooler Saturday, mostly cloudy with rain likely (70%) at night (0.10 in. of rain possible),
  • Mostly cloudy with AM rain, rain likely (70%) and a bit cooler Sunday afternoon, then a (40%) chance of rain Sunday night.
  • highs 74-62 lows near 53.
  • Mostly cloudy Monday, mostly cloudy Monday night,
  • Mostly cloudy with a slight (20%) chance of rain and a bit warmer Tuesday, a good (50%) chance of rain at night,
  • Mostly cloudy with a good (50%) chance of rain and a bit cooler Wednesday, a slight (20%) chance of rain Wednesday night,
  • Then mostly cloudy with a (30%) chance of rain Thursday.
  • highs 62-64 lows 46-48. (seasonal averages high 62 low 46)

Forecast for the Northern Oregon Cascades including Willamette Pass:

  • A mix of clouds and sun and a bit cooler today, partly cloudy tonight,
  • A mix of clouds and sun  and a bit cooler Saturday, becoming mostly cloudy with rain Saturday night,
  • Mostly cloudy with rain and cooler Sunday, evening rain likely (70%), with a slight (20%) chance of thunderstorms, a (%) chance of rain and snow late Sunday night.
  • free air freezing level 14,000 ft. today, 13,000 ft. falling to 12,000 ft. late tonight, 12,000 ft. Saturday, snow level above 8,000 ft. Saturday Saturday night, 8,000 ft. Sunday, then 7,000 ft. Sunday night.
  • highs 68-47 lows 47-38.
  • Mostly cloudy with a (40%) chance of AM rain and snow, partly cloudy and a bit warmer with a slight (20%) chance of rain and snow Monday afternoon, a slight (20%) chance of rain and snow Monday night,
  • A mix of clouds and sun with a good (50%) chance of rain and snow Tuesday, rain and slow likely (70%) at night,
  • Mostly cloudy with rain and snow likely (70%) and a bit cooler Wednesday, a good (50%) chance of rain and snow Wednesday night,
  • Then a mix of clouds and sun with a good (50%) chance of rain and snow Thursday.
  • snow level 6,500 ft. Monday, 6,000 ft. Monday night, 6,500 ft. Tuesday night and Wednesday, 6,000 ft. Wednesday night, then 5,500 ft. Thursday.
  • highs 52-47 lows near 34.