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Tim Chuey Weather

by | Sep 7, 2023 | Weather

September 7, 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 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 Low Pressure Trough offshore remains in control. Continued onshore airflow continues normal temperatures and surface high pressure brings a little warming Friday and Saturday. The graphics for days 1-3  show a weak disturbance fell apart as it moved into Oregon. Another weak cold front moves in behind it. The graphics for days 3-7   Sunday through Thursday show a cold front will push through the Pacific Northwest Monday with another behind it moving in next Wednesday.

Forecast For The South Willamette Valley Including Eugene-Springfield:

  • Partly cloudy tonight,
  • Patchy AM fog, mostly sunny and a bit warmer Friday, mostly clear Friday night,
  • Mostly sunny and a bit warmer Saturday, mostly clear at night,
  • Partly cloudy and a bit cooler Sunday, a slight (20%) chance of evening showers, then partly cloudy late Sunday night.
  • lows 50-54 highs 80-83 cooling back to 80 Sunday.
  • Partly cloudy Monday and Monday night,
  • Mostly sunny Tuesday, mostly clear at night,
  • Mostly sunny Wednesday, mostly clear Wednesday night,
  • Then mostly sunny and a bit warmer Thursday.
  • highs 80-82 lows near 52 (seasonal averages high 82 low 49)

Forecast for the Umpqua Valley including Roseburg:

  • Mostly clear tonight,
  • Sunny and a bit warmer Friday, mostly clear Friday night,
  • Mostly sunny and a bit warmer Saturday, mostly clear at night,
  • AM sun, partly cloudy and a bit cooler Sunday afternoon, then partly cloudy with a slight (20%) chance of showers Sunday night.
  • lows 54-56 cooling back to 54 Saturday night highs 82-86.
  • Partly cloudy and a bit cooler Monday, mostly clear Monday night,
  • Mostly sunny Tuesday, mostly clear at night,
  • Mostly sunny Wednesday mostly clear at night,
  • Then mostly sunny and a bit warmer Thursday.
  • highs near 84-82 warming to 86 Wednesday lows 58 cooling to 53 Tuesday night. (seasonal averages high 83 low 54)

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

  • Mostly clear with patchy inland fog late tonight,
  • Sunny and a bit warmer Friday, mostly clear in the evening, partly cloudy late Friday night,
  • Mostly cloudy with patchy inland AM fog, sunny Saturday afternoon, mostly cloudy at night,
  • Mostly cloudy start, partly cloudy and a bit warmer Sunday afternoon, partly cloudy with a slight (20%) chance of evening showers, then mostly cloudy with a slight (20%) chance of showers late Sunday night.
  • lows 52-58 highs 74-76.
  • Partly cloudy with a slight (20%) chance of AM showers, just partly cloudy and a bit cooler Monday afternoon, mostly clear Monday night,
  • Mostly sunny and a bit warmer Tuesday, mostly clear at night,
  • Mostly sunny Wednesday, mostly clear Wednesday night,
  • Then mostly sunny and a bit warmer Thursday.
  •  highs 74-76 lows 54-56 cooling back to 54 Wednesday  night (seasonal averages high 67 low 52)

Forecast for the Northern Oregon Cascades including Willamette Pass:

  • Mostly clear tonight,
  • Sunny and a bit warmer Friday, mostly clear Friday night,
  • Mostly sunny and a bit warmer Saturday, mostly clear at night,
  • Mostly sunny start, partly cloudy and a bit cooler Sunday afternoon, then just partly cloudy late Sunday night.
  • free air freezing level 12,000 ft. tonight, 12,000 ft. rising to 13,000 ft. Friday afternoon, 13,000 ft. falling to 12,000 ft. late Friday night, 12, 000 ft. Saturday, 13,000 ft. falling to 12,000 ft. late Saturday night, Sunday, then 13,000 ft. Sunday night.
  • lows 42-47 highs 70-74 cooling to 72 Sunday.
  • Partly cloudy and a bit cooler Monday and Monday night,
  • Mostly sunny Tuesday, mostly clear at night,
  • Mostly sunny and a bit warmer Wednesday, mostly clear Wednesday night,
  • Then mostly sunny and a bit warmer Thursday.
  • free air freezing level 14,000 ft. Monday through Wednesday, then 15,000 ft. Wednesday night and Thursday.
  • highs 70-74 lows 43-45.