Follow EDN on Social Media |

(+)Contact Us  (+)Got A Hot Tip?  (+)Join The EDN Team

Tim Chuey Weather

by | Nov 27, 2023 | Weather

November 27, 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 4 PM WEDNESDAY BELOW 1,000 FT. FOR THE SOUTH WILLAMETTE VALLEY AND  COUNTY.
  • AN AIR STAGNATION ADVISORY IS IN EFFECT UNTIL 10 AM THURSDAY FOR THE CASCADE FOOTHILLS IN LANE COUNTY.
  • AN AIR STAGNATION ADVISORY IS IN EFFECT UNTIL 11 AM THURSDAY FOR THE EASTERN COLUMBIA RIVER GORGE OF OREGON, THE LOWER COLUMBIA BASIN OF OREGON, WALLOWA COUNTY, THE JOHN DAY BASIN, THE OCHOCO, THE JOHN DAY HIGHLANDS, THE FOOTHILLS OF THE SOUTHERN BLUE MOUNTAINS OF OREGON,  NORTH CENTRAL OREGON, AND CENTRAL OREGON.
  • AN AIR STAGNATION ADVISORY IS IN EFFECT UNTIL 10 AM THURSDAY FOR CENTRAL DOUGLAS COUNTY, EASTERN CURRY COUNTY AND JOSEPHINE COUNTY, THE EASTERN DOUGLAS COUNTY FOOTHILLS, JACKSON COUNTY, THE SISKIYOU MOUNTAINS, THE SOUTHERN OREGON CASCADES, THE KLAMATH BASIN, NORTHERN AND EASTERN KLAMATH COUNTY, AND WESTERN, CENTRAL, AND EASTERN LAKE COUNTY.
  • AN AIR STAGNATION ADVISORY IS IN EFFECT UNTIL 11 PM THURSDAY FOR THE FOOTHILLS OF THE NORTHERN BLUE MOUNTAINS OF OREGON,
  • AN AIR STAGNATION ADVISORY IS IN EFFECT UNTIL NOON MST THURSDAY FOR HARNEY COUNTY, BAKER COUNTY, MALHEUR COUNTY AND THE OREGON LOWER TREASURE VALLEY.
  • AN AIR QUALITY ADVISORY IS IN EFFECT UNTIL 10 AM THURSDAY FOR THE CENTRAL WILLAMETTE VALLEY AND THE SOUTH WILLAMETTE VALLEY.
  • AN AIR QUALITY ALERT IS IN EFFECT UNTIL 10 AM THURSDAY FOR JACKSON COUNTY, JOSEPHINE COUNTY, AND KLAMATH COUNTY.
  • AN AIR QUALITY ADVISORY IS IN EFFECT UNTIL 11 AM THURSDAY FOR DESCHUTES, JEFFERSON, AND WASCO COUNTIES.

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

Upper level High Pressure keeps the colder nights with us. The graphics for days 1-3  show a complex frontal system moving through central California. The graphics for days 3-7  Thursday through Monday show an active weather pattern Thursday through next Monday.

Forecast For The South Willamette Valley Including Eugene-Springfield:

  • Mostly clear with patchy frost tonight,
  • Some AM clouds with patchy frost and fog, sunny and a bit warmer Tuesday afternoon, patchy evening frost, partly cloudy late Tuesday night,
  • Partly cloudy Wednesday, partly cloudy in the evening, mostly cloudy with a good (50%) chance of rain late at night, patchy frost late,
  • Then mostly cloudy with rain Thursday and Thursday night.
  • lows 27-37 highs near 47.
  • Mostly cloudy with AM rain, rain with a slight (20%) chance of thunderstorms Friday afternoon and evening, rain late Friday night,
  • Mostly cloudy with rain and a bit warmer Saturday and Sunday, rain both nights,
  • Then mostly cloudy and a bit warmer with rain Monday.
  • highs 48-56 lows 42-47. (seasonal averages high 50 low 36)

Forecast for the Umpqua Valley including Roseburg:

  • Mostly clear with patchy evening dense fog, partly cloudy with areas of evening frost, widespread dense frost late tonight,
  • Some AM clouds with widespread fog and frost, sunny and a bit warmer Tuesday afternoon, partly cloudy with areas of evening frost, mostly cloudy  with areas of frost late Tuesday night,
  • Mostly cloudy start, partly cloudy and a bit warmer Wednesday afternoon, partly cloudy with a slight (20%) chance of evening rain, mostly cloudy with a slight (20%) chance of rain late at night,
  • Cloudy and a bit cooler with a good (50%) chance of rain Thursday afternoon, evening rain, then showers likely (70%) late Thursday night.
  • lows 32-39 highs 47-52 cooling back to 47 Thursday.
  • Mostly cloudy with AM rain and snow showers likely (70%), showers and a bit cooler Friday afternoon, rain Friday night,
  • Mostly cloudy and a bit warmer with showers Saturday and in the evening, rain likely (70%) late at night,
  • Then mostly cloudy and a bit warmer with rain Sunday and Monday, rain Sunday night.
  • highs 46-54 lows 42-49. (seasonal averages high 50 low 39)

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

  • Mostly clear with patchy evening coastal fog, areas of frost late tonight,
  • Areas of AM frost, sunny and a bit warmer Tuesday, partly cloudy in the evening, mostly cloudy late Tuesday night,
  • Sunny and a bit cooler Wednesday, partly cloudy in the evening, mostly cloudy with a (30%) chance of coastal rain while partly cloudy with a slight (20%) chance  of inland evening rain and inland rain likely (70%) late at night,
  • Mostly cloudy with rain and a bit cooler Thursday and in the evening, then showers likely (70%) Thursday night.
  • lows 37-42 highs 63-56.
  • Mostly cloudy with showers Friday, rain Friday night,
  • Mostly cloudy and a bit warmer with showers Saturday and in the evening, rain late at night,
  • Mostly cloudy with rain and breezy and a bit warmer Sunday, rain and breezy Sunday night,
  • Then mostly cloudy and a bit warmer with rain and breezy Monday.
  • highs 56-63 lows 45-52. (seasonal averages high 54 low 42)

Forecast for the Northern Oregon Cascades including Willamette Pass:

  • Mostly clear tonight,
  • Mostly sunny Tuesday, partly cloudy and a bit warmer Tuesday night,
  • Partly cloudy and a bit cooler Wednesday, partly cloudy with a good (50%) chance of  rain and snow late at night,
  • Mostly cloudy with a good (50%) chance of AM snow and rain, a bit cooler with snow and rain likely (70%) Thursday afternoon, snow and rain  Thursday night.
  • free air freezing level 10,000 ft. falling to 9,000 ft. late tonight, 8,000 ft. Tuesday, 7,000 ft. falling to 6,500 ft. late Tuesday night, 6,500 ft. Wednesday, snow level 3,500 ft. Wednesday night and Thursday, then 3,000 ft. Thursday night.
  • lows near 25 highs near 43.
  • Mostly cloudy with snow and rain and a bit cooler Friday, snow and rain Friday night (snow possibly heavy at times),
  • Mostly cloudy and a bit warmer with snow and rain Saturday, rain and snow at night,
  • Then mostly cloudy and a bit warmer with rain and snow Sunday and Monday, rain and snow Sunday night,
  • snow level 3,000 ft. Friday, 3,500 ft. Friday night, 4,000 ft. Saturday, 4,500 ft. Saturday night, 6,000 ft. Sunday, then 7,000 ft. Sunday night and Monday.
  • highs 34-32 warming to 3 Sunday lows 24-28.
  • .