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Tim Chuey Weather

by | Nov 16, 2023 | Weather

November 16, 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

AN AIR STAGNATION ADVISORY IS IN EFFECT UNTIL 11 AM MST SATURDAY FOR THE OREGON LOWER TREASURE VALLEY.

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

  • We’re caught between two low pressure areas.  The graphics for days 1-3  show the frontal system that pushed through Pacific Northwest Wednesday and the next coming Saturday. The graphics for days 3-7   Sunday through Thursday show the front that will have moved through Saturday night and Sunday. A cold front slides in Wednesday with another complex frontal system developing offshore next Thursday.

Forecast For The South Willamette Valley Including Eugene-Springfield:

  • Cloudy with patchy fog tonight,
  • Patchy AM and late night fog, sunny and a bit warmer Friday afternoon, partly cloudy in the evening rain, mostly cloudy with a good (50%) chance of rain late Friday night,
  • Mostly cloudy with rain and a bit warmer Saturday (0.25 in. of rain possible), showers at night (0.25 in. of rain possible),
  • Clouds and sun with AM showers likely (70%), a mix of clouds and sun a bit cooler with a (40%) chance of rain Sunday afternoon, partly cloudy with a slight (20%) chance of evening showers, just partly cloudy late Sunday night.
  • lows 39-42 highs 56-58 cooling to 53 Sunday.
  • Mostly cloudy and a bit cooler Monday, mostly cloudy Monday night,
  • Mostly cloudy with a slight (20%) chance of  AM rain, a bit warmer with a good (50%) chance of rain Tuesday afternoon, cloudy with a good (50%) chance of rain at night,
  • Cloudy and a bit cooler with a good (50%) chance of rain Wednesday, mostly cloudy with a good (50%) chance of rain Wednesday night,
  • Then a mix of clouds and sun and a bit cooler with a good (50%) chance of rain Thursday (Thanksgiving Day).
  • highs 50-57 cooling to 53 Wednesday lows 35-42. (seasonal averages high 53 low 38)

Forecast for the Umpqua Valley including Roseburg:

  • Partly cloudy with patchy fog tonight,
  • Patchy AM and late night fog, sunny Friday afternoon, partly cloudy with a (30%) of evening, mostly cloudy with a (30%) chance of rain late Friday night,
  • Mostly cloudy with patchy AM fog and a (0%) chance of rain, rain and a bit cooler with a slight (20%) chance of thunderstorms Saturday afternoon (0.25 in. of rain possible), showers with a slight (20%) chance of evening thunderstorms, showers late at night (0.50 in. of rain possible),
  • Mostly cloudy with AM showers likely (70%), a good (50%) chance of showers a bit cooler Sunday afternoon , then just partly cloudy Sunday night.
  • lows 44-47 cooling to 45 Saturday night highs 62-58.
  • Partly cloudy and a bit warmer Monday, mostly cloudy Monday night,
  • Partly cloudy and a bit warmer Tuesday, mostly cloudy at night,
  • Mostly cloudy and a bit cooler with a slight (20%) chance of rain Wednesday, a slight (20%) chance of rain Wednesday night,
  • Then mostly cloudy with a slight (20%) chance of rain Thursday.
  • highs 54-60 cooling to 55 Wednesday lows 40-47. (seasonal averages high 54 low 41)

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

  • Mostly clear with patchy fog tonight,
  • Mostly sunny and a bit warmer with a slight (20%) chance of coastal rain Friday afternoon while sunny inland and a bit warmer Friday afternoon, partly cloudy with a (30%) chance of evening rain, mostly cloudy with a (30%) rain late Friday night,
  • Mostly cloudy with AM rain and patchy inland fog, coastal showers with a slight (20%) chance of thunderstorms and a bit cooler Saturday afternoon while inland rain with a slight (20%) chance of thunderstorms and a bit cooler Saturday afternoon (0.50 in. of rain possible), evening showers with a slight (20%) chance of thunderstorms, showers likely (70%) and colder at night (0.25 in. of rain possible),
  • Mostly cloudy with a good (50%) chance of AM showers, partly cloudy and a bit cooler with a good (50%) chance of showers Sunday afternoon, then just partly cloudy  Sunday night.
  • lows 45-48 cooling to 42 Sunday night highs 68-59.
  • Partly cloudy and a bit warmer Monday, mostly cloudy Monday night,
  • Mostly cloudy with a slight (20%) chance of rain Tuesday, a slight (20%) chance of rain at night,
  • Mostly cloudy and a bit cooler with a slight (20%) chance of rain Wednesday, a good (50%) chance of rain Wednesday night,
  • Then mostly cloudy and a bit cooler with a (40%) chance of rain Thursday (Thanksgiving Day).
  • highs 64-60 lows 45-47 cooling back to 45 Wednesday night . (seasonal averages high 56 low 43)

Forecast for the Northern Oregon Cascades including Willamette Pass:

  • Clear with tonight,
  • Mostly sunny and a bit warmer Friday, partly cloudy with a good (50%) chance of rain late Friday night (under 0.10 in. of rain possible),
  • Mostly cloudy with rain and a bit cooler Saturday, rain and snow showers at night,
  • Mostly cloudy with snow and rain showers and a bit cooler Sunday, partly cloudy with a slight (20%) chance of evening rain and snow showers, just partly cloudy late Sunday night.
  • free air freezing level 9,000 ft. tonight and Friday, snow level 7,500 ft. Friday night, 7,000 ft. Saturday, 5,500 ft. Saturday night, 3,500 ft. Sunday and Sunday night.
  • lows 32-35 cooling to 22 Sunday night highs 52-32.
  • Partly cloudy and a bit warmer Monday, partly cloudy Monday night,
  • A mix of clouds and sun and a bit warmer with a (40%) chance of rain Tuesday, mostly cloudy with a good (50%) chance of rain at night,
  • Mostly cloudy with a (0%) chance of AM rain, rain land snow likely (70%) and a bit cooler Wednesday afternoon, rain and snow likely (70%) Wednesday night,
  • Then a mix of clouds and sun and a bit cooler with a good (50%) chance of rain and snow Thursday.
  • free air freezing level 12,000 ft  Monday, 13,000 ft. Monday night, snow level 7,500 ft. Tuesday, 7,000 ft. Tuesday night and Wednesday, 6,000 ft. Wednesday night, then 5,000 ft. Thursday (Thanksgiving Day).
  •  highs 43-52 cooling to 38 Thursday lows 30-33 cooling back to 30 Wednesday night.