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Tim Chuey Weather

by | Nov 30, 2023 | Weather

November 30, 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

  • A WINTER WEATHER ADVISORY IS IN EFFECT UNTIL 4 AM FRIDAY ABOVE 3,500 FT. FOR THE EASTERN DOUGLAS COUNTY FOOTHILLS.
  • A WINTER STORM WARNING IS IN EFFECT UNTIL 4 AM FRIDAY UNTIL 4 AM SATURDAY ABOVE 4,000 FT. FOR EASTERN DOUGLAS COUNTY FOOTHILLS.
  • A WINTER STORM WARNING IS IN EFFECT FROM 4 AM FRIDAY UNTIL 4 AM SATURDAY ABOVE 4,500 FT. FOR THE SOUTH CENTRAL OREGON CASCADES, THE SISKIYOU MOUNTAINS, THE SOUTHERN OREGON CASCADES.
  • A WINTER STORM WARNING IS IN EFFECT FROM 4 AM SATURDAY UNTIL 10 PM SATURDAY ABOVE 5,500 FT. FOR THE SOUTH CENTRAL OREGON CASCADES, THE SISKIYOU MOUNTAINS, THE SOUTHERN OREGON CASCADES.
  • A WINTER WEATHER ADVISORY IS IN EFFECT UNTIL 4 AM FRIDAY ABOVE 4,000 FT. FOR THE SOUTH CENTRAL OREGON CASCADES, THE SISKIYOU MOUNTAINS, THE SOUTHERN OREGON CASCADES.
  • A WINTER STORM WARNING IS IN EFFECT FROM 4AM FRIDAY UNTIL 10 AM SATURDAY ABOVE 4,500 FT. FOR NORTHERN AND EASTERN KLAMATH COUNTY AND WESTERN LAKE COUNTY.
  • A WINTER STORM WARNING IS IN EFFECT FROM 4 AM FRIDAY UNTIL 4 PM SATURDAY ABOVE 3,000 FT. FOR THE NORTHERN OREGON CASCADES AND THE CASCADES IN LANE COUNTY.
  • A WINTER WEATHER ADVISORY IS IN EFFECT UNTIL 4 AM FRIDAY AFTERNOON ABOVE 3,000 FT. FOR THE NORTHERN OREGON CASCADES AND THE CASCADES IN LANE COUNTY.
  • A WINTER STORM WARNING IS IN EFFECT FROM 4 AM FRIDAY UNTIL 4 PM SATURDAY ABOVE 5,000 FT. FOR THE EAST SLOPES OF THE OREGON CASCADES.
  • A WINTER WEATHER ADVISORY IS IN EFFECT UNTIL 4 AM FRIDAY ABOVE 4,500 FT. FOR THE EAST SLOPES OF THE OREGON CASCADES.
  • A WINTER WEATHER ADVISORY IS IN EFFECT FROM 4 AM FRIDAY UNTIL 4 AM SUNDAY FOR THE OCHOCO AND THE JOHN DAY HIGHLANDS.
  • A WINTER STORM WARNING IS IN EFFECT FROM 4 AM FRIDAY UNTIL 10 AM SUNDAY FOR THE NORTHERN BLUE MOUNTAINS OF OREGON.
  • A WINTER WEATHER ADVISORY IS IN EFFECT IS IN EFFECT FROM 4 AM FRIDAY UNTIL 4 AM SUNDAY FOR THE SOUTHERN BLUE MOUNTAINS OF OREGON.
  • A WINTER WEATHER ADVISORY IS IN EFFECT UNTIL  5 AM MST SATURDAY FOR BAKER COUNTY.
  • A WINTER WEATHER ADVISORY IS IN EFFECT UNTIL 5 PM MST FOR THE OREGON LOWER TREASURE VALLEY.
  • A WINTER WEATHER ADVISORY IS IN EFFECT FROM 4 AM FRIDAY UNTIL 10 AM SATURDAY ABOVE 4,000 FT. FOR THE KLAMATH BASIN.
  • A WIND ADVISORY IS IN EFFECT FROM 10 AM FRIDAY UNTIL 4 AM SUNDAY FOR CENTRAL AND EASTERN LAKE COUNTY.
  • A BEACH HAZARDS STATEMENT FOR DANGEROUS SNEAKER WAVES IS IN EFFECT FROM LATE FRIDAY NIGHT THROUGH LATE TUESDAY NIGHT FOR THE NORTH CENTRAL OREGON COAST AND THE CENTRAL OREGON COAST.
  • A BEACH HAZARDS STATEMENT FOR DANGEROUS SNEAKER WAVES IS IN EFFECT FROM LATE FRIDAY NIGHT THROUGH LATE MONDAY NIGHT FOR THE SOUTH CENTRAL OREGON COAST AND THE CURRY COUNTY COAST.

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

Frontal systems are heading our way bringing rain and they will be pushed by Atmospheric Rivers. The graphics for days 1-3  show a cold front pushing through the Pacific Northwest today and Friday. The graphics for days 3-7  Sunday through Thursday show an active weather pattern Sunday through next Thursday.

________________

Forecast For The South Willamette Valley Including Eugene-Springfield:

  • Mostly cloudy with a slight (20%) chance of evening rain, rain late tonight (0.25 in. of rain possible) and
  • Mostly cloudy and a bit warmer with rain Friday (0.50 in. of rain possible), rain (0.50 in. of rain possible) and breezy Friday night (Wind: S 10-15 mph increasing and shifting to SW 20-25 mph late at night),
  • Mostly cloudy with rain and a bit warmer Saturday (0.50 in. of rain possible), rain (1.25 in. of rain possible) and breezy at night (Wind: S 15-25 mph gusts to 40 mph),
  • Mostly cloudy and a bit warmer with rain and windy Sunday, then rain Sunday night.
  • lows 38-49 highs 52-58.
  • Mostly cloudy with rain Monday through Tuesday night,
  • Mostly cloudy and a bit cooler with rain Wednesday, rain at night,
  • Then mostly cloudy and a bit cooler with rain Thursday.
  • highs 58-52 lows 52-43. (seasonal averages high 49 low 36)

Forecast for the Umpqua Valley including Roseburg:

  • Mostly cloudy with a good (50%) chance of evening showers, showers and a (30%) of snow late tonight (under 0.10 in. of rain possible, snow level 3,000 ft.),
  • Mostly cloudy with AM showers, rain and a bit cooler Friday afternoon (0.10 in. of rain possible), rain Friday night (0.10 in. of rain possible),
  • Mostly cloudy and a bit warmer with rain Saturday (0.25 in. of rain possible), rain Saturday night (1.00 in. of rain possible),
  • Mostly cloudy and a bit warmer with rain and breezy Sunday, then rain likely (70%) Sunday night.
  • lows 40-52 highs 49-56.
  • Mostly cloudy and a bit warmer with rain likely (70%) Monday, a good (50%) chance of rain Monday night,
  • Mostly cloudy with rain likely (70%) Tuesday, rain at night,
  • Mostly cloudy and a bit cooler with rain Wednesday, rain likely (70%) Wednesday night,
  • Then mostly cloudy and a bit cooler with rain likely (70%) Thursday.
  • highs 58-50 lows 52-45. (seasonal averages high 50 low 38)

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

  • Mostly cloudy with a good (50%) chance of evening coastal showers through midnight while inland evening showers likely (70%), showers late tonight (0.10in. of rain possible),
  • Mostly cloudy with AM showers, a good (50%) chance of coastal showers and a bit warmer Friday afternoon while inland showers likely (70%) Friday afternoon (0.50 in. of rain possible), evening showers, rain late Friday night (0.10 in. of rain possible),
  • Mostly cloudy and a bit warmer Saturday (0.50 in.. of rain possible), rain at night (1.5 in. of rain possible),
  • Mostly cloudy and windy with rain and a bit cooler Sunday, then rain likely (70%) and breezy Sunday night.
  • lows 42-55 highs 58-62 cooling to 60 Sunday.
  • Mostly cloudy and breezy with rain likely (70%) a bit warmer Monday, evening rain likely (70%), a good (50%) chance of rain and breezy Monday night,
  • Mostly cloudy with AM rain likely (70%), rain and breezy Tuesday afternoon, rain at night,
  • Mostly cloudy with rain and a bit cooler Wednesday, rain likely (70%) Wednesday night,
  • Then mostly cloudy and a bit cooler with rain Thursday.
  • highs 62-54 lows 55-47. (seasonal averages high 54 low 41)

Forecast for the Northern Oregon Cascades including Willamette Pass:

  • Mostly cloudy with a (40%) chance of evening snow and rain, snow and rain late tonight (0.50 in. of rain possible, 1-4 in. of snow possible, patchy blowing snow late – visibility 0.25 miles or less),
  • Mostly cloudy and breezy (Pass Wind: SW 15-25 mph gusts to 40 mph) with snow and rain and a bit warmer Friday (1.00 in. of rain possible, 6-12 in. of snow possible, patchy blowing snow, snow possibly heavy at times), snow and rain Friday night (0.75 in. of rain possible, 3-6 in. of snow possible, patchy blowing snow, visibility 0.25 miles or less),
  • Mostly cloudy and a bit warmer with rain and snow and windy (Pass Wind: SW 20-30 mph gusts to 45 mph) Saturday (AM blowing snow, snow possibly heavy at times), evening snow (possibly heavy at times), then rain late at night and Windy (Pass Wind: SW 20-30 mph gusts to 40 mph increasing to 50 mph late),
  • Mostly cloudy with rain and a bit warmer Sunday, then rain Sunday night.
  • snow level 3,000 ft. tonight, 3,500 ft. Friday, 4,000 ft. Friday night, 5,000 ft. Saturday, 6,000 ft. rising to 7,000 ft. Saturday night, then 7,500 ft. Sunday and Sunday night.
  • lows 24-35 highs near 32-38.
  • Mostly cloudy with rain and a bit warmer Monday, rain likely (7.0%) Monday night,
  • Mostly cloudy and a bit warmer with rain Tuesday, rain at night,
  • Mostly cloudy and a bit cooler with rain and a slight (20%) chance of snow Wednesday, rain and snow Wednesday night,
  • Then mostly cloudy and a bit cooler with rain and snow Thursday.
  • snow level  above 8,000 ft. Monday through Tuesday, 8,000 ft. Tuesday night, 7,000 ft. Wednesday, 5,500 ft. Wednesday night, then 4,500 ft. Thursday
  • highs 40-43 cooling to 34 Thursday lows 35-29.