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Tim Chuey Weather

by | Nov 26, 2023 | Uncategorized, Weather

November 26, 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

  • AN AIR STAGNATION ADVISORY IS IN EFFECT UNTIL 10 AM THURSDAY FOR CENTRAL DOUGLAS COUNTY, EASTERN CURRY COUNTY AND JOSEPHINE COUNTY, THE EASTERN DOUGLAS COUNTY FOOTHILLS, JACKSON COUNTY, THE SISKIYOU MOUNTAINS, THE SOUTHERN OREGON CASCADES, THE KLAMATH BASIN, NORTHERN AND EASTERN KLAMATH COUNTY, AND WESTERN, CENTRAL, AND EASTERN LAKE COUNTY.
  • AN AIR STAGNATION ADVISORY IS IN EFFECT 9 PM MST TONIGHT UNTIL NOON MST THURSDAY FOR HARNEY COUNTY, BAKER COUNTY, MALHEUR COUNTY AND THE OREGON LOWER TREASURE VALLEY.

HEALTH ADVISORIES

  • A PUBLIC HEALTH ADVISORY IS IN EFFECT FOR UNSAFE LEVELS OF FECAL BACTERIA IN OCEAN WATERS AT BEVERLY BEACH IN LINCOLN COUNTY. PEOPLE SHOULD AVOID DIRECT CONTACT WITH THE WATER IN THIS AREA UNTIL THE ADVISORY IS LIFTED. UNSAFE LEVELS OF FECAL BACTERIA CAN CAUSE DIARRHEA, STOMACH CRAMPS, SKIN RASHES, UPPER RESPIRATORY INFECTIONS AND OTHER ILLNESSES. CHILDREN, THE ELDERLY, AND THOSE WITH A COMPROMISED IMMUNE SYSTEM SHOULD USE EXTRA CAUTION AS THEY ARE MORE VULNERABLE TO TO ILLNESSES FROM WATERBORNE BACTERIA. VISITORS SHOULD AVOID WADING IN NEARBY CREEKS, POLS OF WATER ON THE BEACH, OR IN DISCOLORED WATER, AND STAY CLEAR OF WATER RUNOFF FLOWING INTO THE OCEAN.
  • 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 CONTINUES 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

Upper level High Pressure keeps the colder nights with us. The graphics for days 1-3  show a complex frontal system off the California coast Tuesday. The graphics for days 3-7  Wednesday through Sunday show an active weather pattern Wednesday through next Sunday.

Forecast For The South Willamette Valley Including Eugene-Springfield:

  • Partly cloudy with patchy frost tonight,
  • A mix of clouds and sun with patchy AM frost, sunny Monday afternoon, partly cloudy Monday night,
  • AM clouds and sun, sunny Tuesday afternoon, patchy evening frost, partly cloudy at night,
  • AM clouds and sun, sunny and a bit warmer Wednesday afternoon, partly cloudy in the evening, then mostly cloudy with a slight (20%) chance of rain Wednesday night, patchy frost late.
  • lows 26-33 highs 47-49.
  • Cloudy with a good (50%) chance of rain and a bit cooler Thursday, mostly cloudy with a good (50%) chance of rain Thursday night,
  • Mostly cloudy with rain likely (70%) and a bit warmer Friday, rain at night,
  • Mostly cloudy and a bit warmer with rain Saturday, rain likely (70%) Saturday night,
  • Then mostly cloudy and a bit warmer with rain Sunday.
  • highs 48-53 lows 36-43. (seasonal averages high 50 low 36)

Forecast for the Umpqua Valley including Roseburg:

  • Clear with areas of evening frost, widespread frost late tonight,
  • AM clouds with widespread frost, sunny and a bit cooler Monday afternoon, mostly cloudy with areas of evening frost, widespread frost late Monday night,
  • Some AM clouds, sunny Tuesday afternoon, just partly cloudy at night,
  • Some AM clouds, sunny Wednesday afternoon, mostly clear in the evening, then mostly cloudy with a slight (20%) chance of rain Wednesday night.
  • lows 40-42 highs 60-57.
  • Mostly cloudy and a bit cooler with a good (50%) chance of rain Thursday, rain likely (70%) Thursday night,
  • Mostly cloudy with a rain likely (70%) Friday, rain at night,
  • Mostly cloudy and a bit warmer with rain Saturday, rain likely (70%) Saturday night,
  • Then mostly cloudy with rain likely (70%) Sunday.
  • highs 53-56 lows 42-45. (seasonal averages high 50 low 39)

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

  • Clear with areas of frost late tonight,
  • Areas of AM frost, sunny and a bit warmer Monday afternoon, mostly clear Monday night,
  • Partly cloudy with a slight (20%) chance of coastal showers Tuesday afternoon, partly cloudy with a slight (20%) chance of evening showers, a slight (20%) chance of rain late at night,
  • Sunny and a bit cooler Wednesday, mostly cloudy with a slight (20%) chance of evening rain, then mostly cloudy with a slight (20%) chance of rain late Wednesday night.
  • lows 35-39 highs 62-59.
  • Mostly cloudy with AM rain likely (70%),  a bit cooler with rain likely (70%) Thursday afternoon, rain likely (70%) Thursday night,
  • Mostly cloudy with AM rain likely (70%), rain and a bit warmer Friday afternoon, rain at night,
  • Mostly cloudy and a bit warmer with rain Saturday, rain likely (70%) Saturday night,
  • Mostly cloudy with AM rain likely (70%), then rain and a bit warmer Sunday afternoon.
  • highs 56-60 lows 42-46. (seasonal averages high 55 low 42)

Forecast for the Northern Oregon Cascades including Willamette Pass:

  • Mostly clear tonight,
  • Mostly sunny and a bit cooler Monday, mostly clear Monday night,
  • Mostly sunny Tuesday, partly cloudy at night,
  • Some AM clouds, sunny Wednesday, partly cloudy with a (40%) chance of  rain and snow Wednesday night.
  • free air freezing level 10,000 ft. tonight, 10,000 ft. rising to 11,000 ft. Monday afternoon, 10,000 ft. falling to 9,000 ft. late Monday night, 9,000 ft. Tuesday, 8,000 ft. falling to 7,500 ft. late Tuesday night, 7,000 ft. Wednesday, then snow level 3,500 ft. Wednesday night.
  • lows 23-25 highs near 43.
  • Mostly cloudy with a (40%) chance of AM rain and snow, cooler with a good (50%) chance of snow and rain Thursday afternoon, evening snow and rain likely (70%), a good (50%) chance of rain and snow late Thursday night,
  • Mostly cloudy with a good (50%) chance of AM rain and snow, a bit cooler with snow and rain likely (70%) Friday afternoon, snow and rain at night (snow possibly heavy at times),
  • Mostly cloudy and a bit warmer with snow and rain Saturday (snow possibly heavy at times), evening snow and rain (snow possibly heavy at times), a good (50%) chance of snow and rain Saturday night,
  • Then mostly cloudy and a bit warmer with rain and snow Sunday.
  • snow level 3,500 ft. Thursday, 3,000 ft. Thursday night and Friday, 3,500 ft. Friday night, 4,000 ft. Saturday and Saturday night, then 5,000 ft. Sunday.
  • highs 34-32 warming to 3 Sunday lows 24-28.