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Tim Chuey Weather

by | Sep 10, 2023 | Weather

September 10, 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 and surface high pressure continues giving us normal temperatures. The graphics for days 1-3  show a weak cold front breaks up as moves in Monday. The graphics for days 3-7   Wednesday through Sunday show a cold front that pushed into the Pacific Northwest Tuesday night and then no frontal activity through the rest of the period.

Forecast For The South Willamette Valley Including Eugene-Springfield:

  • Partly cloudy with a slight (20%) chance of drizzle late tonight,
  • Clouds and sun with a slight (20%) chance of AM drizzle, a mix of clouds and sun and a bit cooler Monday afternoon, partly cloudy Monday night,
  • Patchy AM fog, partly cloudy and a bit warmer Tuesday afternoon, partly cloudy with patchy fog late at night,
  • A mix of clouds and sun with patchy AM fog, sunny and a bit warmer Wednesday afternoon, then mostly clear Wednesday night.
  • lows 55-53 warning back to 55 Tuesday night cooling to 52 Wednesday night highs 78-82.
  • Sunny and a bit warmer Thursday, mostly clear Thursday night,
  • Sunny Friday, mostly clear at night,
  • Then mostly sunny Saturday and Sunday, mostly clear Sunday night.
  • highs 86-90 cooling to 85 Sunday lows 52-54 (seasonal averages high 80 low 49)

Forecast for the Umpqua Valley including Roseburg:

  • Becoming party cloudy and hazy with a slight (20%) chance of drizzle late tonight,
  • Mostly cloudy with patchy AM fog and a slight (20%) chance of drizzle, partly cloudy and a bit cooler with a slight (20%) chance of drizzle Monday afternoon, partly cloudy in the evening, mostly cloudy late Monday night,
  • Partly cloudy with patchy AM fog, sunny and a bit warmer Tuesday afternoon, mostly clear in the evening, partly cloudy late at night,
  • AM clouds, sunny and a bit warmer Wednesday afternoon, then clear Wednesday night.
  • lows 55-58 cooling back to 55 Wednesday night highs 80-84.
  • Sunny and a bit warmer Thursday and Friday, mostly clear both nights,
  • Then mostly sunny and a bit cooler Saturday and Sunday, mostly clear Saturday night.
  • highs near 89-94 cooling to 88 Sunday lows near 58. (seasonal averages high 82 low 54)

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

  • Partly cloudy with patchy fog with a slight (20%) chance of drizzle tonight, mostly cloudy with patchy coastal fog late tonight while mostly cloudy with inland patchy fog late tonight,
  • Mostly cloudy with patchy AM fog and a (30%) chance of drizzle, mostly cloudy and a bit warmer with a (40%) chance of drizzle Monday afternoon (under 0.10 in. of rain possible), partly cloudy in the evening, mostly cloudy with patchy fog late Monday night,
  • Partly cloudy with patchy AM coastal fog while areas of AM inland fog, sunny and a bit warmer Tuesday afternoon, partly cloudy in the evening, mostly cloudy late at night,
  • Mostly sunny and a bit warmer Wednesday, then mostly clear Wednesday night.
  • lows 58-53 warming to 58 Tuesday night cooling to 55 Wednesday night highs 73-76.
  • Sunny and a bit warmer Thursday and Friday, mostly clear both nights,
  • Mostly sunny and a bit cooler Saturday, mostly clear in the evening, partly cloudy late Saturday night,
  • Then sunny Sunday.

Forecast for the Northern Oregon Cascades including Willamette Pass:

  • Partly cloudy tonight,
  • Partly cloudy and a bit cooler Monday, partly cloudy Monday night,
  • Some AM clouds, sunny and a bit cooler Tuesday afternoon, mostly clear at night,
  • Mostly sunny and a bit warmer Wednesday, then mostly clear Wednesday night.
  • free air freezing level 13,000 ft. tonight through Monday night, 13,000 ft. falling to 12,000 ft. Tuesday, 12,000 ft. Tuesday night,  13,000 ft. Wednesday, then 14,000 ft. Wednesday night.
  • lows 46-42 warming to 44 Wednesday night highs 70-66 warming to 68 Wednesday.
  • Sunny and a bit warmer Thursday and Friday, mostly clear both nights,
  • Mostly sunny Saturday, partly cloudy Saturday night,
  • Then mostly sunny and a bit cooler Sunday.
  • free air freezing level 14,000 ft. Thursday, 15,000 ft. Thursday night, then 14,000 ft. Friday through Sunday.
  • highs 76-79 cooling to 77 Sunday lows 49-52 cooling back to 49 Saturday night.