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Tim Chuey Weather

by | Dec 6, 2023 | Weather

December 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

  • A FLOOD WARNING IS IN EFFECT UNTIL EARLY FRIDAY MORNING FOR THE LUCKIAMUTE RIVER NEAR SUVER AFFECTING POLK AND BENTON COUNTIES.
  • A WINTER WEATHER ADVISORY IS IN EFFECT UNTIL 4 PM TODAY FOR NORTHERN AND EASTERN KLAMATH COUNTY, AND WESTERN, CENTRAL, AND EASTERN LAKE COUNTY.
  • A WINTER WEATHER ADVISORY IS IN EFFECT UNTIL 4 AM FRIDAY ABOVE 3,500 FT. FOR THE SOUTH CENTRAL OREGON CASCADES, THE SISKIYOU MOUNTAINS, AND THE SOUTHERN OREGON CASCADES,.
  • A WINTER WEATHER ADVISORY IS IN EFFECT FROM 4 AM TODAY UNTIL 10 AM FRIDAY ABOVE 4,000 FT. FOR THE NORTHERN BLUE MOUNTAINS OF OREGON AND THE NORTHWEST BLUE MOUNTAINS.
  • A BEACH HAZARDS STATEMENT FOR DANGEROUS SNEAKER WAVES IS IN EFFECT THROUGH THIS AFTERNOON FOR THE NORTH CENTRAL OREGON COAST AND THE CENTRAL OREGON 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 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  Sunday through Thursday show frontal systems sliding through Oregon Sunday and next Thursday.

________________

Forecast For The South Willamette Valley Including Eugene-Springfield:

  • Mostly cloudy and a bit cooler with showers today (0.25 in. of rain possible), showers tonight (0.25 in. of rain possible),
  • Mostly cloudy with a good (50%) chance of AM showers, a (30%) chance of showers Friday afternoon, rain likely (70%) late at night,
  • Mostly cloudy with rain Saturday, then rain Saturday night.
  • highs near 49 lows 38-36 warming to 43 Saturday night.
  • Mostly cloudy with rain and a bit warmer Sunday, rain Sunday night,
  • Mostly cloudy with a (40%) of rain and a bit cooler Monday, partly cloudy with a slight (20%) chance of evening rain, just partly cloudy at night,
  • A mix of clouds and sun and a bit cooler Tuesday, partly cloudy in the evening, mostly cloudy with a slight (20%) chance of rain late Tuesday night,
  • Then mostly cloudy with a (40%) chance of rain Wednesday.
  • highs 53-47 lows 42-34. (seasonal averages high 48 low 35)

Forecast for the Umpqua Valley including Roseburg:

  • Mostly cloudy with AM showers and a slight (20%) chance of thunderstorms, showers likely (70%) and a bit cooler with a slight (20%) chance of thunderstorms this afternoon (snow level 3,000 ft.), showers and snow with a slight (20%) chance of thunderstorms late tonight (snow level 2,500 ft., no snow accumulation expected),
  • Mostly cloudy with AM snow and rain likely (70%), a good (50%) chance of rain and a bit cooler Friday afternoon, a slight (20%) chance of evening rain, a (30%) chance of rain and snow late at night,
  • Mostly cloudy and a bit warmer with rain Saturday, then rain Saturday night.
  • highs near 47 lows 39-37 warming to 45 Saturday night.
  • Mostly cloudy with AM rain, a bit warmer with rain likely (70%) Sunday afternoon, a good (50%) chance of rain Sunday night,
  • Mostly cloudy and a bit warmer with a (30%) chance of rain Monday, a slight (20%) chance of evening rain, just mostly cloudy at night,
  • Mostly cloudy start, partly cloudy and a bit cooler Tuesday afternoon and evening, mostly cloudy with a slight (20%) chance of rain late Tuesday night,
  • Then mostly cloudy and a bit cooler with a slight (20%) chance of rain Wednesday.
  • highs 50-52 cooling to 49 Wednesday lows 45-37. (seasonal averages high 48 low 37)

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

  • Mostly cloudy with AM coastal showers likely (70%) with a (30%) chance of thunderstorms coastal showers and a bit cooler with a slight (20%) chance of thunderstorms this afternoon while inland AM showers and a slight (20%) chance of thunderstorms with inland showers and a (30%) chance of thunderstorms this afternoon (0.75 in. of rain possible), showers with a slight (20%) chance of thunderstorms late tonight (0.25 in. of rain possible),
  • Mostly cloudy with AM coastal rain likely (70%) and a good (50%) chance of coastal rain Friday afternoon while a good (50%) chance of inland rain Friday, mostly cloudy with a (30%) chance of evening coastal rain and coastal rain likely (70%) late at night while a (30%) chance of inland rain at night,
  • Mostly cloudy with AM rain likely (70%), rain and breezy and a bit warmer Saturday afternoon, then rain Saturday night.
  • highs 55-57 lows 42-39 warming to 47 Saturday night .
  • Mostly cloudy with AM rain, rain likely (70%) and a bit warmer Sunday afternoon, evening rain likely (70%), a good (50%) chance of rain late Sunday night,
  • Mostly cloudy and a bit cooler with a good (50%) chance of rain Monday, a slight (20%) chance of evening rain, partly cloudy with a slight (20%) chance of rain late at night,
  • Partly cloudy with a slight (20%) chance of AM rain, just partly cloudy and a bit warmer Tuesday afternoon and evening, mostly cloudy with a slight (20%) chance of rain at night,
  • Then mostly cloudy and a bit cooler with a (40%) chance of rain Wednesday.
  • highs 59-57 warming back to 59 Tuesday cooling back to 57 Wednesday lows 44-40. (seasonal averages high 53 low 41)

Forecast for the Northern Oregon Cascades including Willamette Pass:

  • Mostly cloudy and cooler with snow and rain showers today (0.75 in. of rain possible, 6-10 in. of snow possible, snow showers tonight (3-7 in.of snow possible),
  • Mostly cloudy with AM snow showers, a bit cooler with a (40%) chance of snow showers Friday afternoon, partly cloudy in  the evening, mostly cloudy with snow likely (70%) late Friday night,
  • Mostly cloudy with rain and snow and a bit warmer Saturday, then rain and snow Saturday night.
  • snow level 3,000 ft. today, 2,500 ft. tonight and Friday, 2,000 ft. Friday night, 4,500 ft. Saturday, then 6,500 ft. Saturday night.
  • highs near 30-35 lows 23-19 warming to 32 Saturday night.
  • Mostly cloudy with rain and snow and a bit warmer Sunday, evening rain and snow likely (70%), a good (50%) chance of rain and snow late Sunday night,
  • A mix of clouds and sun and a bit cooler with rain and snow Monday, partly cloudy with a (40%) chance of evening rain and snow, a slight (20%) chance of rain and snow late at night,
  • Partly cloudy and a bit cooler with a slight (20%) chance of rain and snow Tuesday, a slight (20%) chance of rain and snow Tuesday night,
  • Clouds and sun with a (40%) chance of AM rain and snow, then a mix of clouds and sun and a bit warmer with a (40%) chance of snow Wednesday afternoon.
  • snow level  6,500 ft. Sunday, 5,500 ft. Sunday night, 5,000 ft. Monday, 4,500 ft. Monday night, 5,000 ft. Tuesday, then 5,500 ft. Tuesday night and Wednesday.
  • highs 37-35 warming back to 37 Wednesday lows 29-24.