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Tim Chuey Weather

by | Dec 5, 2023 | Weather

December 5, 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 FLOOD WARNING IS IN EFFECT THROUGH WEDNESDAY EVENING FOR THE SILETZ RIVER AT SILETZ AFFECTING LINCOLN COUNTY, THE NEHALEM RIVER AT AT FOSS AFFECTING TILLIMOOK COUNTY, THE TRASK RIVER NEAR TILLAMOOK AFFECTING TILLAMOOK COUNTY, THE WILSON RIVER NEAR TILLAMOOK, AFFECTING TIILLAMOOK COUNTY.
  • A WINTER WEATHER ADVISORY IS IN EFFECT FROM 4PM WEDNESDAY UNTIL 4 PM THURSDAY FOR NORTHERN AND EASTERN KLAMATH COUNTY, AND WESTERN, CENTRAL, AND EASTERN LAKE COUNTY.
  • A WINTER WEATHER ADVISORY IS IN EFFECT FROM 4 PM WEDNESDAY UNTIL 4 AM FRIDAY ABOVE 3,500 FT. FOR EASTERN CURRY COUNTY AND JOSEPHINE COUNTY, THE SISKIYOU MOUNTAINS, AND THE SOUTHERN OREGON CASCADES.
  • A FLOOD ADVISORY IS IN EFFECT UNTIL 1 AM THURSDAY FOR BENTON COUNTY, CLACKAMAS COUNTY, CLATSOP COUNTY, COLUMBIA COUNTY, LANE COUNTY, LINCOLN COUNTY, LINN COUNTY,  MARION COUNTY, MULTNOMAH COUNTY, POLK COUNTY, TILLAMOOK COUNTY, WASHINGTON COUNTY, AND YAMHILL COUNTY.
  • A WIND ADVISORY IS IN EFFECT FROM 7 AM UNTIL 10 PM WEDNESDAY FOR THE KLAMATH BASIN, NORTHERN AND EASTERN KLAMATH COUNTY, AND WESTERN, CENTRAL, AND EASTERN LAKE COUNTY.
  • A BEACH HAZARDS STATEMENT FOR DANGEROUS SNEAKER WAVES IS IN EFFECT THROUGH LATE WEDNESDAY NIGHT FOR THE NORTH CENTRAL OREGON COAST AND THE CENTRAL OREGON COAST.
  • A HIGH SURF ADVISORY IS IN EFFECT UNTIL 10 AM WEDNESDAY FOR THE SOUTH CENTRAL OREGON COAST AND THE CURRY COUNTY COAST.
  • A FLOOD WATCH IS IN EFFECT THROUGH WEDNESDAY AFTERNOON FOR THE NORTH OREGON COAST, THE CENTRAL OREGON COAST, THE COAST RANGE OF NORTHWEST OREGON, THE CENTRAL COAST RANGE OF NORTHWEST OREGON, THE LOWER COLUMBIA, THE GREATER PORTLAND METRO AREA, AND THE CENTRAL WILLAMETTE VALLEY.
  • A FLOOD WATCH IS IN EFFECT THROUGH WEDNESDAY AFTERNOON THE SOUTH CENTRAL OREGON COAST, THE CURRY COUNTY COAST, CENTRAL DOUGLAS COUNTY, EASTERN CURRY COUNTY, AND JOSEPHINE COUNTY.

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 moving through Oregon bringing rain and they will be pushed by Atmospheric Rivers. The graphics for days 1-3  show a cold front slowly pushing through the Pacific Northwest. The graphics for days 3-7  Friday through Tuesday show a very active weather pattern through next Tuesday.

________________

Forecast For The South Willamette Valley Including Eugene-Springfield:

  • Mostly cloudy with rain tonight (0.75 in. of rain possible),
  • Mostly cloudy and a bit cooler with rain Wednesday (0.75 in. of rain possible), rain with a slight (20%) chance of thunderstorms late Wednesday night (0.50 in. of rain possible, more in storms),
  • Mostly cloudy and a bit cooler with rain and a slight (20%) chance of thunderstorms Thursday (0.50 in. of rain possible), rain at night (0.10 in. of rain possible),
  • Mostly cloudy with AM rain likely (70%), a good (50%) chance of rain Friday afternoon, cloudy with a good (50%) chance of evening rain, then rain late Friday night.
  • lows 52-38 highs 56-49.
  • Mostly cloudy and a bit warmer with rain Saturday, rain Saturday night,
  • Mostly cloudy with AM rain likely (70%), a good (50%) chance of rain and a bit warmer Sunday afternoon, a (40%) chance of rain  at night,
  • AM clouds and sun with a (40%) of snow and rain, a mix of clouds and sun and a bit cooler with a (40%) chance of rain Monday afternoon, partly cloudy with a (30%) chance of rain Monday night and a (30%) chance of snow late,
  • Clouds and sun with a (30%) chance of AM snow and rain, then a mix of clouds and sun and a bit cooler with a (30%) chance of rain Tuesday afternoon.
  • highs 50-52 cooling to 45 Wednesday lows 42-32. (seasonal averages high 48 low 35)

Forecast for the Umpqua Valley including Roseburg:

  • Cloudy with a (40%) chance of evening rain, rain tonight (0.10 in. of rain possible),
  • Mostly cloudy with AM rain, a bit cooler with showers and a slight (20%) chance of thunderstorms Wednesday afternoon (0.50 in. of ran possible, possible heavy rain in storms), showers and a slight (20%) chance of thunderstorms Wednesday night (0.25 in. of rain possible, snow level 3,500 ft.),
  • Mostly cloudy with showers and a bit cooler with a slight (20%) chance of thunderstorms Thursday (snow level 3,000 ft.),  evening rain and snow with a slight (20%) chance of thunderstorms, rain and snow late at night,
  • Mostly cloudy with a good (50%) of AM rain and snow, a (40%) chance of rain and a bit cooler Friday afternoon, cloudy with a good (50%) chance of evening rain and snow, then rain and snow late Friday night.
  • lows 54-46 rising to 48 Friday highs 63-47.
  • Mostly cloudy and a bit warmer with rain Saturday, rain Saturday night,
  • Mostly cloudy with AM rain likely (70%), a bit warmer with a good (50%) chance of rain Sunday afternoon, a (40%) chance of rain at night,
  • Mostly cloudy and a bit cooler with a (30%) chance of rain Monday, a (30%) chance of rain Monday night,
  • Mostly cloudy with a (30%) chance of AM rain, then partly cloudy and a bit warmer with a slight (20%) chance of rain Tuesday afternoon.
  • highs 49-46 warming to 48 Tuesday lows 45-35. (seasonal averages high 49 low 38)

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

  • Mostly cloudy with evening coastal rain likely (70%) while a good (50%) chance of evening inland rain, rain tonight (1.25 in. of rain possible),
  • Mostly cloudy with AM coastal rain a slight (20%) chance of thunderstorms while AM inland rain, a bit cooler Wednesday afternoon (1.00 in. of rain possible), with showers and a slight (20%) chance of thunderstorms late Wednesday night (0.50 in. of rain possible, heavy rain possible in storms),
  • Mostly cloudy with showers and a bit cooler with a slight (20%) chance of thunderstorms Thursday (0.75 in. of rain possible) and in the evening, rain late at night (0.25 in. of rain possible),
  • Mostly cloudy with a good (50%) chance of rain Friday afternoon, cloudy with evening rain likely (70%), then rain late Friday night.
  • lows 49-40 warming to 42 Friday night highs 59-55.
  • Mostly cloudy with rain and breezy and a bit warmer Saturday, rain Saturday night,
  • Mostly cloudy with AM rain likely (70%), a good (50%) chance of rain Sunday afternoon, a good (50%) chance of rain at night,
  • Mostly cloudy with a good (50%) chance of rain Monday, a (40%) chance of rain Monday night,
  • Then mostly cloudy with a (30%) chance of rain Tuesday.
  • highs near 58 lows 46-38. (seasonal averages high 53 low 41)

Forecast for the Northern Oregon Cascades including Willamette Pass:

  • Mostly cloudy with a (%) chance of evening rain, rain likely (70%) late tonight (0.25 in. of rain possible),
  • Mostly cloudy with AM rain, rain and snow and a bit cooler Wednesday afternoon (0.75 in. of rain possible, 1 in. of snow possible), rain and snow and breezy (Wind: SW 15-25 mph gusts to 40 mph) Wednesday night (0.50 in. of rain possible, 3-7 in. of snow possible),
  • Mostly cloudy and cooler with snow Thursday afternoon (snow possibly heavy at times), evening snow and rain (snow possibly heavy at times),  snow late at night,
  • Mostly cloudy with AM snow, a bit cooler with a good (50%) chance of snow Friday afternoon, then a good (50%) chance of snow and rain Friday night.
  • snow level 7,000 ft. tonight, 6,000 ft. falling to 5,000 ft. Wednesday afternoon, 4,000 ft. Wednesday night, 3,000 ft. Thursday, 2,500 ft. Thursday night, then 2,500 ft. Friday and Friday night.
  • lows 36-23 highs near 48-32.
  • Mostly cloudy with AM rain and snow, a (%) chance of rain and snow and a bit warmer Saturday afternoon, evening rain and snow, rain with a slight (20%) chance of snow late Saturday night,
  • Mostly cloudy with rain and snow Sunday, a good (50%) chance of evening rain and snow, partly cloudy with a good (50%) chance of rain and snow at night,
  • A mix of clouds and sun with a (40%) chance of rain and snow Monday, partly cloudy with a (40%) chance of ran and snow Monday night,
  • Then a mix of clouds and sun and a bit warmer with a (40%) chance of rain and snow Tuesday.
  • snow level 5,000 ft. Saturday, 6,500 ft. Saturday night, 5,500 ft. Sunday, then 5,000 ft. Sunday night through Tuesday,.
  • highs 29-37 lows 22-32 cooling to 28 Monday.