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Tim Chuey Weather

by | Nov 12, 2023 | Weather

November 12, 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 WEDNESDAY FOR THE OREGON LOWER TREASURE VALLEY.

HEALTH ADVISORIES

  • A RECREATIONAL USE HEALTH ADVISORY IS IN EFFECT FOR LAKE  EWAUNA 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 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 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 ICONTINUES 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

  • Zonal (West to East) airflow continues the moisture feed.The graphics for days 1-3  show the next frontal system that will move through the Pacific Northwest Monday. The graphics for days 3-7   Wednesday through Sunday show the complex frontal system that impacts our weather Wednesday and Thursday. Another front will slide in next Sunday.

Forecast For The South Willamette Valley Including Eugene-Springfield:

  • Mostly cloudy with rain tonight (0.25 in. of rain possible),
  • Cloudy with a good (50%) chance of AM showers (under 0.10 in. of rain possible), mostly cloudy and a bit cooler Monday afternoon, mostly cloudy Monday night (under 0.10 in. of rain possible),
  • Mostly cloudy with a slight (20%) chance of showers and a bit cooler Tuesday (under 0.10 in. of rain possible), showers likely (70%) at night (under 0.10 in. of rain possible),
  • Mostly cloudy and a bit warmer with a good (50%) chance of showers Wednesday, a (40%) chance of evening showers, then partly cloudy late Wednesday night.
  • lows 46-40 warming to 42 Tuesday night cooling to 38 Wednesday night highs 56-53 warming to 55 Wednesday.
  • Some AM clouds, sunny and a bit cooler Thursday afternoon, partly cloudy Thursday night,
  • Partly cloudy Friday, partly cloudy with a slight (20%) chance of evening showers, mostly cloudy with a (30%) chance of shower late at night,
  • Mostly cloudy with a good (50%) chance of AM rain, rain likely (70%) and a bit warmer Saturday afternoon, evening rain likely (70%), a (40%) chance of rain late Saturday night,
  • Then mostly cloudy and a bit cooler with a good (50%) chance of rain Sunday.
  • highs 54-56 cooling to 53 Saturday night lows 38-43. (seasonal averages high 54 low 38)

Forecast for the Umpqua Valley including Roseburg:

  • Mostly cloudy with rain tonight (0.25 in. of rain possible),
  • Mostly cloudy with AM rain likely (70%), a bit cooler with a good (50%) chance of showers Monday afternoon (0.10 in. of rain possible),  a slight (20%) chance of rain at night and patchy fog late Monday night (under 0.10 in. of rain possible) ,
  • Patchy AM fog, mostly cloudy with a (30%) chance of rain Tuesday afternoon (under 0.10 in. of rain possible), a (40%) chance of rain Tuesday night with patchy fog late (under 0.10 in. of rain possible),
  • Mostly cloudy with patchy AM fog, partly cloudy and a bit warmer with a (30%) chance of rain Wednesday afternoon, then patchy fog with a slight (20%) chance of rain Wednesday night.
  • lows 48-44 highs 55-58.
  • Patchy AM fog, partly cloudy and a bit cooler Thursday, mostly clear in the evening, partly cloudy late Thursday night,
  • Partly cloudy and a bit warmer Friday, partly cloudy with a slight (20%) chance of evening rain, mostly cloudy with a slight (20%) chance of rain at night,
  • Mostly cloudy and a bit cooler with a (30%) chance of rain Saturday, a (40%) chance of rain Saturday night,
  • Then mostly cloudy and a bit cooler with a (30%) chance of rain Sunday.
  • highs 56-59 cooling to 54 Sunday lows 42-45. (seasonal averages high 55 low 41)

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

  • Mostly cloudy and breezy (Wind: S 15-25 mph decreasing to S 5-10 mph late this evening and shifting SW 5-10 mph late tonight) with evening coastal rain and a good (50%) of coastal rain late tonight while inland rain tonight (0.50 in. of rain possible),
  • Mostly cloudy with a (40%) chance of showers Monday (under 0.10 in. of rain possible), a (30%) of showers at night with patchy inland fog late Monday night (under 0.10 in. of rain possible),
  • Patchy AM fog,  mostly cloudy and a bit cooler with a (30%) chance of rain Tuesday (under 0.10 in. of rain possible), cloudy with a (40%) chance of rain at night and patchy fog late (under 0.10 in. of rain possible),
  • Mostly cloudy with a (40%) of AM rain, partly cloudy with a (40%) chance of rain and a bit warmer Wednesday afternoon, then partly cloudy with a slight (20%) chance of rain Wednesday night and patchy fog late.
  • lows 48-46 warming to 50 Tuesday night Wednesday night cooling to 44 Wednesday night highs 62-58 warming back to 62 Wednesday.
  • Some AM clouds, sunny and a bit cooler Thursday afternoon, mostly clear Thursday night,
  • Partly cloudy and a bit warmer Friday and in the evening, mostly cloudy with a (30%) chance of rain late Friday night,
  • Mostly cloudy and a bit cooler with a (40%) chance of rain Saturday, a good (50%) chance of rain Saturday night,
  • Then mostly cloudy and a bit cooler with a (40%) chance of rain Sunday.
  • highs 60-63 cooling to 57 Sunday lows 43-48 (seasonal averages high 58 low 44)

Forecast for the Northern Oregon Cascades including Willamette Pass:

  • Mostly cloudy with a slight (20%) chance of evening rain, rain and snow late tonight (0.25 in. of rain possible, no snow accumulation expected),
  • Mostly cloudy with AM showers likely (70%) and a good (50%) chance of snow showers, a good (50%) chance of showers and a bit cooler Monday afternoon, a (40%) chance of evening showers, just mostly cloudy late Monday night (0.25 in. of rain possible),
  • Mostly cloudy with a good (50%) chance of AM showers, showers likely (70%) and a bit warmer Tuesday afternoon, showers likely (70%) at  night,
  • Mostly cloudy with a good (50%) chance of rain and snow showers and a bit warmer Wednesday, mostly cloudy with a good (50%) chance of evening rain and snow showers, then partly cloudy with a good (50%) chance of rain and snow showers late Wednesday night.
  • snow level 5,500 ft. tonight and Monday, 6.000 ft. Monday night and Tuesday, 6,500 ft. Tuesday night, 6,000 ft. Wednesday and Wednesday night.
  • lows 32-34 cooling back to 32 Wednesday night highs 42-47.
  • Partly cloudy with a (40%) chance of rain showers and snow showers and a bit warmer Thursday, mostly clear with a slight (20%) chance of showers Thursday night,
  • Mostly sunny with a slight (20%) chance of AM showers, partly cloudy and a bit warmer with a slight (20%) chance of rain and snow showers Friday afternoon, partly cloudy with a good (50%) chance of evening showers, mostly cloudy with a good (50%) chance of showers at night,
  • Mostly cloudy with AM rain likely (70%), rain and snow likely (70%) snow showers likely (70%) and a bit cooler Saturday afternoon, rain and snow likely (70%) Saturday  night,
  • Mostly cloudy with AM rain and snow likely (70%), then snow likely (70%) and a bit cooler Sunday afternoon.
  • snow level 6,000 ft. Thursday, 6,500 ft. Thursday night, 7,000 ft. Friday and Friday night, 6,500 ft. Saturday,6,000 ft. Saturday night, then 5,000 ft. Sunday.
  • highs 50-38 lows near 32.