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Tim Chuey Weather

by | Dec 8, 2023 | Weather

December 8, 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

  • NONE AT THIS TIME.

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 complex frontal system slowly pushing through the Pacific Northwest Saturday and Sunday. The graphics for days 3-7  Monday through Friday show frontal systems sliding through Oregon next Thursday.

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Forecast For The South Willamette Valley Including Eugene-Springfield:

  • Partly cloudy this evening, mostly cloudy with areas of frost late tonight,
  • Mostly cloudy and a bit cooler with a good (50%) of rain Saturday (0.25 in. of rain possible), rain Saturday night (0.75 in. of rain possible),
  • Mostly cloudy with rain and a bit warmer Sunday (0.50 in. of rain possible), rain at night (0.25 in. of rain possible),
  • Mostly cloudy with a good (50%) of AM rain, a slight (20%) chance of rain Monday afternoon, then just mostly cloudy Monday night.
  • lows 33-46 cooling to 40 Monday night highs 48-54.
  • Mostly cloudy start, partly cloudy and a bit cooler Tuesday afternoon, partly cloudy with a slight (20%) of rain Tuesday night,
  • Mostly cloudy and a bit warmer with a (40%) chance of rain Wednesday and in the evening, mostly cloudy with a slight (20%) chance of rain at night,
  • Clouds and sun with a slight (20%) chance of AM rain, a mix of clouds and sun Thursday afternoon, partly cloudy Thursday night,
  • A mix of clouds and sun with a slight (20%) chance of rain Friday night.
  • highs 49-50 lows 36-38 cooling to 33. (seasonal averages high 47 low 35)

Forecast for the Umpqua Valley including Roseburg:

  • Partly cloudy with patchy late evening patchy fog, mostly cloudy with areas of fog and a slight (20%) chance of rain late tonight,
  • Areas of AM fog, cloudy and a bit cooler with a slight (20%) chance of rain Saturday, a (30%) of rain Saturday night (0.10 in. of rain possible),
  • Mostly cloudy with rain and a bit warmer Sunday and in the evening (0.25 in. of rain possible), a good (50%) chance of rain late at night (0.10 in. of rain possible),
  • Mostly cloudy with a (30%) chance of AM rain, a slight (20%) chance of rain and a bit warmer Monday afternoon, then mostly cloudy with patchy fog Monday night.
  • lows 37-47 cooling to 42 Monday night highs 48-52.
  • Partly cloudy with patchy AM fog, sunny Tuesday afternoon, partly cloudy in the evening, mostly cloudy late Tuesday night,
  • Mostly cloudy with a slight (20%) chance of rain Wednesday, a (30%) chance of rain at night,
  • Mostly cloudy with a slight (20%) chance of AM rain, partly cloudy and a bit cooler with a slight (20%) chance of rain Thursday afternoon, mostly cloudy late Thursday night,
  • Mostly cloudy start, partly cloudy and a bit warmer with a slight (20%) chance of rain Friday afternoon.
  • highs 52-50 warming back to 52 Friday lows 38-40 cooling to 36 Thursday night. (seasonal averages high 48 low 37)

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

  • Portly cloudy with patchy evening fog, cloudy with a slight (20%) chance of rain with areas of fog late tonight,
  • Areas of AM fog, cloudy with a (30%) chance of rain and a bit warmer Saturday (under 0.10 in. of rain possible), evening coastal rain with coastal rain late at night while a (30%) chance of inland rain Saturday night (0.25 in. of rain possible),
  • Mostly cloudy with rain and a bit warmer Sunday (0.50 in. of rain possible), rain at night (0.25 in. of rain possible),
  • Mostly cloudy with a (40%) chance of AM rain, a bit cooler with a slight (20%) chance of showers Monday afternoon, then just mostly cloudy late Monday night.
  • lows 38-49  cooling to 42 Monday night highs 56-59.
  • Partly cloudy and a bit warmer Tuesday, partly cloudy Tuesday night,
  • Mostly cloudy and a bit cooler with a (40%) chance of rain Wednesday, a good (50%) chance of rain at night,
  • Mostly cloudy with a slight (20%) chance of AM rain, partly cloudy and a bit warmer with a slight (20%) chance of rain Thursday afternoon, just partly cloudy Thursday night,
  • Then partly cloudy and a bit warmer with a slight (20%) chance of rain Friday.
  • highs 60-58 warming to 62 Friday lows near 42. (seasonal averages high 53 low 41)

Forecast for the Northern Oregon Cascades including Willamette Pass:

  • Partly cloudy tonight,
  • Cloudy with a good (50%) chance of rain and snow and a bit cooler Saturday (0.10 in. of rain possible), a good (50%) chance of evening rain with snow, rain and snow likely (70%) late Saturday night (0.75 in. of rain possible, 1 in. of snow possible),
  • Mostly cloudy with rain and a bit warmer Sunday, rain at night,
  • Mostly cloudy with AM showers, a slight (20%) chance of rain and snow likely (70%) Monday, partly cloudy with a (40%) chance of evening snow showers with a slight (20%)  chance of rain showers, then just partly cloudy late Monday night.
  • free air freezing level at the surface tonight, snow level 2,500 ft. rising to 4,500 ft. Saturday afternoon, 6,000 ft. Saturday night, 7,000 ft. Sunday, 6,000 ft. Sunday night, 5,500 ft. Monday, then 5,000 ft. Monday night.
  • lows 17-33 cooling to 26 Monday night highs 37-39.
  • Partly cloudy and a bit cooler Tuesday, partly cloudy Tuesday night,
  • Clouds and sun with a slight (20%) chance of AM rain and snow, a bit warmer with a (40%) chance of rain and snow Wednesday afternoon, a (40%) chance of rain and snow at night,
  • A mix of clouds and sun and a bit cooler with a (30%) chance of snow and a slight (20%) chance of rain Thursday, partly cloudy with a slight (20%) chance of evening rain and snow showers, just partly cloudy late Thursday night,
  • Partly cloudy with a slight (20%) chance of AM rain showers and snow showers, then a (30%) chance of showers Friday afternoon.
  • free air freezing level 9,000 ft. Tuesday and Tuesday night, snow level 5,500 ft. Wednesday, then 5,000 ft. Wednesday night through Friday.
  • highs 37-40 cooling to 38 Friday lows near 25.