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Tim Chuey Weather

by | Dec 22, 2023 | Weather

December 22, 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  BEACH HAZARDS STATEMENT IS IN EFFECT FOR DANGEROUS SNEAKER WAVES FROM LATE TONIGHT THROUGH THURSDAY AFTERNOON FOR THE NORTH 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

An Upper Level Low Pressure Trough (“U” shape) is just offshore. The graphics for days 1-3  show the cold front that moved through Oregon today. The graphics for days 3-7   Monday through Friday show a parade of frontal systems pushing into the Pacific Northwest.

Forecast For The South Willamette Valley Including Eugene-Springfield:

  • Partly cloudy with patchy fog tonight,
  • Patchy AM fog, partly cloudy and cooler Saturday afternoon, partly cloudy with patchy evening fog, mostly cloudy with patchy fog late Saturday night,
  • Patchy AM fog, mostly cloudy  and a bit warmer with a good (50%) chance of Sunday afternoon (under 0.10 in. of rain possible), mostly cloudy with a good (50%) chance of rain with patchy fog late at night,
  • Cloudy with a good (50%) chance of AM rain, rain and warmer Monday afternoon (Christmas Day), then rain Monday night.
  • lows 30-44 highs 38-52.
  • Mostly cloudy with rain and a bit warmer Tuesday, rain Tuesday night,
  • Mostly cloudy and a bit cooler with rain Wednesday, rain at night,
  • Mostly cloudy with AM rain likely (70%), a good (50%) chance of rain Thursday afternoon, partly cloudy with a (40%) chance of evening rain, mostly cloudy with a (40%) chance of rain late Thursday night,
  • Then a mix of clouds and sun and a bit cooler with a (40%) chance of rain Friday.
  • highs 55-48 lows 42-36. (seasonal averages high 46 low 34)

Forecast for the Umpqua Valley including Roseburg:

  • Partly cloudy this evening, mostly cloudy with patchy fog late tonight,
  • AM clouds with patchy fog, sunny cooler Saturday afternoon, partly cloudy with patchy evening dense fog, mostly cloudy with patchy dense fog late Saturday night,
  • Mostly cloudy with a (40%) chance of rain and a bit warmer Sunday, a (30%) chance of rain at night,
  • Mostly cloudy with a (40%) chance of AM rain, a bit warmer with rain likely (70%) Monday afternoon (Christmas Day), evening rain, then rain likely (70%) late Monday night.
  • lows 32-46 highs 43-52.
  • Mostly cloudy and a bit warmer with a good (50%) chance of rain Tuesday, a (30%) chance of rain Tuesday night,
  • Mostly cloudy with a good (50%) chance of AM rain, rain Wednesday afternoon and at night,
  • Mostly cloudy with AM rain likely (70%), a good (50%) chance of rain and a bit cooler Thursday afternoon, a (30%) chance of rain Thursday night,
  • Then mostly cloudy and a bit cooler with a (30%) chance of rain Friday.
  • highs 55-52 lows 47-39 (seasonal averages high 48 low 36).

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

  • Mostly clear with a slight (20%) chance of early evening coastal rain, mostly clear tonight (under 0.10 in. of rain possible),
  • Sunny Saturday, partly cloudy in the evening, mostly cloudy with a slight (20%) chance of rain late Saturday night,
  • Mostly cloudy with rain likely (70%) and a bit warmer Sunday (under 0.10 in. of rain possible), evening coastal rain likely (70%) and a good (50%) chance of coastal rain at night while a good (50%) chance of inland rain at night (under 0.10 in. of rain possible),
  • Mostly cloudy with a good (50%) chance of AM rain, rain likely (70%) and a bit warmer Monday afternoon (Christmas Day), evening rain, then rain likely (70%) late Monday night.
  • lows 35-33 warming to 47 Monday night highs 53-59.
  • Mostly cloudy with AM rain likely (70%), a good (50%) chance of rain and a bit warmer Tuesday afternoon, a good (50%) chance of rain Tuesday night,
  • Mostly cloudy with rain and a bit cooler and breezy Wednesday,  rain at night,
  • Mostly cloudy with AM rain likely (70%), then breezy and a bit cooler with a good (50%) chance of rain Thursday afternoon, a good (50%) chance of rain Thursday night,
  • Then mostly cloudy and a bit warmer with a good (50%) chance of rain Friday.
  • highs 62-58 warming to 60 Friday lows 48-42 (seasonal averages high 53 low 40)

Forecast for the Northern Oregon Cascades including Willamette Pass:

  • Partly cloudy with a slight (20%) chance of evening snow showers, just partly cloudy late tonight,
  • Mostly sunny start, partly cloudy and cooler Saturday afternoon, partly cloudy Saturday night,
  • Mostly cloudy with a good (50%) chance of rain and snow and a bit warmer Sunday and in the evening, partly cloudy with a slight (20%) chance of rain and snow late at night,
  • Mostly cloudy with a good (50%) chance of AM rain and snow, rain and a bit warmer Monday afternoon  (Christmas Day), then rain and snow Monday night.
  • free air freezing level at the surface late tonight, at the surface rising to 5,500 ft. Saturday afternoon, 6,500 ft. rising to 7,000 ft. late Saturday night, snow level  3,000 ft. Sunday, 4,000 ft. Sunday night, 5,500 ft. Monday, then 6,500 ft. Monday night.
  • lows 16-32 highs 33-39.
  • Mostly cloudy and a bit warmer with a good (50%) chance of rain Tuesday, a (40%) chance of rain Tuesday night,
  • Mostly cloudy with AM rain likely (70%) and a good (50%) chance of snow, rain with snow likely (70%) Wednesday afternoon, rain and snow at night,
  • Mostly cloudy with rain and snow likely (70%) and a bit cooler Thursday, partly cloudy with a good (50%) chance of rain and snow Thursday night,
  • Then a mix of clouds and sun with a good (50%) chance of rain and snow and a bit warmer Friday.
  •  snow level 7,000 ft. Tuesday and Tuesday night, 6,000 ft. Wednesday, 5,000 ft. Wednesday night, then 3,500 ft. Thursday through Friday.
  • highs 42-36 warming to 38 Friday lows 35-25.