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October 27, 2022

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 FROST ADVISORY IS IN EFFECT FROM 3 AM UNTIL 10 AM FRIDAY FOR EASTERN CURRY COUNTY AND JOSEPHINE COUNTY.

HEALTH ADVISORIES

  • A PUBLIC HEALTH ADVISORY IS IN EFFECT IS IN EFFECT FOR UNSAFE LEVELS OF FECAL BACTERIA IN OCEAN WATERS AT CANNON BEACH AND TOLOVANA STATE PARK IN TILLAMOOK COUNTY. PEOPLE SHOULD AVOID DIRECT CONTACT WITH 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, ELDERLY AND THOSE WITH A COMPROMISED IMMUNE SYSTEM SHOULD USE EXTRA CAUTION AS THEY ARE MORE VULNERABLE TO ILLNESSES FROM WATERBORNE BACTERIA. VISITORS SHOULD AVOID WADING IN NEARBY CREEKS, POOLS OF WATER ON THE BEACH, OR IN DISCOLORED WATER, AND STAY CLEAR OF WATER RUNOFF FLOWING INTO THE OCEAN. LEVELS OF FECAL BACTERIA TEND TO BE HIGHER IN THESE TYPES OF WATER SOURCES.
  • A RECREATIONAL HEALTH ADVISORY IS IN EFFECT FOR WILLOW CREEK RESERVOIR IN MORROW COUNTY DUE THE PRESENCE OF A CYANOBACTERIA (BLUE-GREEN ALGAE) BLOOM AND CYANOTOXINS ABOVE RECREATIONAL USE VALUES FOR HUMAN EXPOSURE. PEOPLE SHOULD AVOID SWIMMING AND HIGH-SPEED WATER ACTIVITIES, SUCH AS WATER SKIING OR POWER BOATING, IN AREAS OF THE LAKE WHERE BLOOMS ARE, AS THE MAJOR RISK OF EXPOSURE IS FROM INGESTING WATER. THESE TOXINS ARE NOT ABSORBED THROUGH THE SKIN. HOWEVER, IF YOU HAVE SKIN SENSITIVITIES  YOU MAY GET A PUFFY RED RASH. IT CAN BE HARMFUL TO PETS AND PEOPLE IF ACCIDENTAL INGESTION OCCURS. SPECIAL CARE SHOULD BE TAKEN WITH CHILDREN, ESPECIALLY THE YOUNGER ONES, WHEN THEY ARE NEAR THE WATER.
  • A RECREATIONAL HEALTH ADVISORY IS IN EFFECT FOR ALL OF UPPER KLAMATH LAKE IN KLAMATH COUNTY INCLUDING SHOALWATER BAY DUE THE PRESENCE OF A CYANOBACTERIA (BLUE-GREEN ALGAE) BLOOM AND CYANOTOXINS ABOVE RECREATIONAL USE VALUES FOR HUMAN EXPOSURE. PEOPLE SHOULD AVOID SWIMMING AND HIGH-SPEED WATER ACTIVITIES, SUCH AS WATER SKIING OR POWER BOATING, IN AREAS OF THE LAKE WHERE BLOOMS ARE, AS THE MAJOR RISK OF EXPOSURE IS FROM INGESTING WATER. THESE TOXINS ARE NOT ABSORBED THROUGH THE SKIN. HOWEVER, IF YOU HAVE SKIN SENSITIVITIES  YOU MAY GET A PUFFY RED RASH. IT CAN BE HARMFUL TO PETS AND PEOPLE IF ACCIDENTAL INGESTION OCCURS. SPECIAL CARE SHOULD BE TAKEN WITH CHILDREN, ESPECIALLY THE YOUNGER ONES, WHEN THEY ARE NEAR THE WATER.
  • NOTE: THE RECREATIONAL HEALTH ADVISORY ISSUED FOR THE WILLAMETTE RIVER NEAR CATHEDRAL PARK IN NORTH PORTLAND  AND UPSTREAM (SOUTH) TO THE WILLAMETTE COVE AREA NEAR THE SP&S RAILROAD BRIDGE DUE THE PRESENCE OF A CYANOBACTERIA (BLUE-GREEN ALGAE) BLOOM AND CYANOTOXINS HAS BEEN LIFTED. IT IS VERY IMPORTANT FOR PEOPLE TO BECOME FAMILIAR WITH SIGNS OF BLOOM, EXPOSURES, AND SYMPTOMS BY VISITING OHA’S CYANOBACTERIA HARMFUL ALGAE BLOOM WEBSITE AT:  http://www.healthoregon.org/hab.
  • A PERMANENT RECREATIONAL HEALTH ADVISORY IS IN EFFECT FOR THE SOUTH UMPQUA RIVER AND MAINSTEM UMPQUA RIVER. THE ADVISORY COVERS THE SOUTH UMPQUA RIVER FROM CANYONVILLE DOWNSTREAM TO THE CONFLUENCE OF THE MAINSTEM UMPQUA RIVER, AND THE MAINSTEM UMPQUA RIVER DOWNSTREAM PAST ELKTON TO LAWSON BAR. PEOPLE IN THE BEDROCK ALONG THE RIVERS EDGE ARE ARE KNOWN TO DEVELOP CYANOBACTERIA (BLUE-GREEN ALGAE) BLOOMS THAT CAN BE HARMFUL TO PETS AND PEOPLE IF ACCIDENTAL INGESTION OCCURS. SIGNS HAVE BEEN POSTED AT SEVERAL ACCESS AREAS ALONG THE RIVER.

THE WEATHER PATTERN

  • An Upper Level High Pressure Ridge (“Arch” shape) is giving way to low pressure which will send storms to the Pacific Northwest. The graphics for days 1-3 show the frontal system that is approaching Oregon and moving through Friday. The graphics for days 3-7  Sunday through Thursday show frontal activity increasing over the period.

Forecast for the South Willamette Valley including Eugene-Springfield:

  • Mostly cloudy tonight,
  • Cloudy with a good (50%) chance of AM rain, rain likely (70%) Friday afternoon (0.25 in. of rain possible), rain Friday night (0.25 in. of rain possible),
  • Cloudy with a good (50%) chance of rain Saturday (0.10 in. of rain possible), just mostly cloudy at night,
  • Mostly cloudy with a slight (20%) chance of rain Sunday afternoon, then a good (50%) chance of rain Sunday night.
  • lows 45-47 cooling back to 45 Sunday night highs near 63.
  • Mostly cloudy with rain likely (70%) and a bit cooler Monday (Halloween), showers likely (70%) Monday night,
  • Mostly cloudy and a bit cooler with showers likely (70%) Tuesday and Tuesday night,
  • Mostly cloudy and a bit cooler with a good (50%) chance of showers Wednesday, a (40%) chance of showers Wednesday night,
  • Then mostly cloudy with a good (50%) chance of showers Thursday.
  • highs 62-54 lows 43-37. (Seasonal Averages high 60 low 40)

Forecast for the Umpqua Valley including Roseburg:

  • Mostly cloudy tonight,
  • Cloudy with a good (50%) chance of AM rain, rain likely (70%) Friday afternoon (0.25 in. of rain possible), rain Friday night (0.25 in. of rain possible),
  • Cloudy with a good (50%) chance of rain Saturday (0.10 in. of rain possible), just mostly cloudy at night,
  • Mostly cloudy with a slight (20%) chance of rain Sunday afternoon, then a good (50%) chance of rain Sunday night.
  • lows 45-47 cooling back to 45 Sunday night highs near 63.
  • Mostly cloudy with rain likely (70%) and a bit cooler Monday (Halloween), showers likely (70%) Monday night,
  • Mostly cloudy and a bit cooler with showers likely (70%) Tuesday and Tuesday night,
  • Mostly cloudy and a bit cooler with a good (50%) chance of showers Wednesday, a (40%) chance of showers Wednesday night,
  • Then mostly cloudy with a good (50%) chance of showers Thursday.
  • highs 62-54 lows 43-37. (Seasonal Averages high 60 low 40)

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

  • Mostly cloudy tonight,
  • Becoming mostly cloudy with a (30%) chance of coastal rain and a bit cooler Friday, cloudy with a slight (20%) chance of evening rain, rain late Friday night (0.25 in. of rain possible),
  • Mostly cloudy with AM rain likely (70%), a slight (20%) chance of showers Saturday afternoon (0.10 in. of rain possible), just mostly cloudy at night,
  • Mostly cloudy and a bit warmer Sunday, partly cloudy in the evening, mostly cloudy with a slight (20%) chance of rain late Sunday night.
  • lows 49-52 cooling to 48 Saturday night warming to 50 Sunday night highs 63-65.
  • Mostly cloudy with a good (50%) chance of rain and a bit cooler Monday (Halloween), rain likely (70%) Monday night,
  • Mostly cloudy and a bit cooler with rain likely (70%) Tuesday and in the evening, showers likely (70%) late at night,
  • Mostly cloudy with AM showers likely (70%), a good (50%) chance of showers Wednesday afternoon, a (40%) chance of showers Wednesday night,
  • Then mostly cloudy with a good (50%) chance of showers Thursday.
  • highs 65-59 warming to 62 Thursday lows 47-42. (Seasonal Averages high 61 low 46)

Forecast for the Northern Oregon Cascades including Willamette Pass:

  • Mostly cloudy with patchy smoke tonight,
  • Mostly cloudy with patchy AM smoke and a slight (20%) chance rain, a slight (20%) chance of rain Friday afternoon, cloudy with a good (50%) chance of rain Friday night,
  • Mostly cloudy with a good (50%) chance of rain Saturday, partly cloudy in the evening,  mostly cloudy late at night,
  • A mix of clouds and sun and a bit warmer Sunday, partly cloudy with a slight (20%) chance of rain late Sunday night.
  • free air freezing level 11,000 ft. tonight, snow level 5,500 ft. Friday, 7,000 ft. Friday night and Saturday, free air freezing level 9,000 ft. rising to 10,000 ft. Saturday night, 11,000 ft. Sunday, then snow level above 8,000 ft. Sunday night.
  • lows near 33 highs 47-49.
  • Mostly cloudy with a good (50%) of rain and a bit cooler Monday (Halloween), evening rain likely (70%), showers likely (70%) Monday night,
  • Mostly cloudy with rain and snow showers likely (70%) and cooler Tuesday, cloudy with evening snow and showers likely (70%), a good (50%) chance of snow and showers late at night,
  • Mostly cloudy and a bit cooler with a good (50%) chance of snow and rain showers Wednesday, a (40%) chance of evening showers, a (40%) chance of snow showers late Wednesday night,
  • Mostly cloudy with a good (50%) chance of snow showers and a bit warmer Thursday with a good (50%) chance of showers Thursday afternoon.
  • snow level 8,000 ft. Monday, 6,500 ft. Monday night, 5,000 ft. Tuesday, 4,000 ft. Tuesday night, 3,500 ft. Wednesday, 2,500 ft. Wednesday night, then 4,000 ft. Thursday.
  • highs 47-33warming to 36 Thursday lows 32-23.
  • For all of your Eugene-Springfield and Lane County News, Weather, and Sports go to: EugeneDailyNews.com

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8/ 22 Plenty of sunshine, but cooler to start your workweek today.

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  • For all of your Eugene-Springfield and Lane County News, Weather, and Sports go to: EugeneDailyNews.com

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Mostly clear again tonight, then sunshine and slightly cooler for your Friday.

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

  • Becoming mostly cloudy late tonight,
  • Some AM clouds, sunny and a bit warmer Friday afternoon, clear in the evening, partly cloudy late Friday night,
  • Mostly cloudy start, partly cloudy and slightly cooler Saturday afternoon, mostly clear at night,
  • Mostly sunny Sunday, then mostly clear Sunday night.
  • lows 54-56 cooling back to 54 Sunday night highs 70-69.
  • Mostly sunny and a bit warmer Monday, mostly clear Monday night,
  • Partly cloudy and slightly cooler Tuesday, partly cloudy at night,
  • Then partly cloudy Wednesday through Thursday.
  • highs 73-72 lows 54-56 cooling back to 54 Wednesday night. (Seasonal Averages high 66 low 54)

Forecast for the Northern Oregon Cascades including Willamette Pass:

  • Mostly clear tonight,
  • Mostly sunny and a bit cooler Friday, clear Friday night,
  • Sunny and a bit warmer Saturday, mostly clear at night,
  • Some AM clouds, mostly sunny and a bit cooler Sunday, then clear Sunday night.
  • free air freezing level 15,000 ft. falling to 14,000 ft. late tonight, 14,000 ft. rising to 15,000 ft. Friday afternoon, 15,000 ft. Friday night through Sunday, then 16,000 ft. Sunday night.
  • lows 49-47 highs 74-72 warming back to 74 Sunday.
  • Sunny and a bit warmer Monday, clear Monday night,
  • Sunny Tuesday, mostly clear at night,
  • Then mostly sunny and a bit cooler Wednesday and Thursday, mostly clear Wednesday night.
  • free air freezing level 16,000 ft. Monday through Thursday.
  • highs 80-75 lows 53-50.