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September 29, 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

  • AN AIR QUALITY ADVISORY IS IN EFFECT UNTIL 11 AM TODAY FOR THE CASCADE FOOTHILLS IN LANE COUNTY AND THE LANE COUNTY CASCADES.

HEALTH ADVISORIES

  • A PUBLIC HEALTH ADVISORY IS IN EFFECT IS IN EFFECT FOR UNSAFE LEVELS OF FECAL BACTERIA IN OCEAN WATERS AT ROCKAWAY BEACH 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 PUBLIC HEALTH ADVISORY IS IN EFFECT IS IN EFFECT FOR UNSAFE LEVELS OF FECAL BACTERIA IN OCEAN WATERS AT SHORT SAND BEACH 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 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 moving to the east away from us allowing frontal movement. The graphics for days 1-3 show a cold front that moved through Oregon Wednesday. The graphics for days 3-7  Sunday through Thursday show the frontal system that will be to our northwest next Monday.

Forecast for the South Willamette Valley including Eugene-Springfield:

  • Mostly cloudy with AM showers likely (70%), a good (50%) chance of showers and a bit cooler this afternoon (under 0.10 in. of rain possible), partly cloudy with areas of fog late tonight,
  • Some AM clouds with areas of fog, mostly sunny and a bit warmer Friday afternoon, clear at night,
  • Sunny and a bit warmer Saturday, then mostly clear Saturday night.
  • highs 70-86 lows 52-50 warming back to 52 Saturday night.
  • Mostly sunny and a bit cooler Sunday, mostly clear Sunday night,
  • Some AM clouds, mostly sunny and a bit cooler Monday afternoon, partly cloudy at night,
  • Partly cloudy and a bit cooler Tuesday, partly cloudy Tuesday night,
  • Then a mix of clouds and sun and a bit cooler Wednesday.
  • highs 83-78 lows near 52. (Seasonal Averages high 73 low 45)

Forecast for the Umpqua Valley including Roseburg:

  • Mostly cloudy with a (30%) chance of showers tonight (under 0.10 in. of rain possible),
  • Mostly cloudy and a bit cooler with a (30%) chance of showers Thursday, partly cloudy late Thursday night,
  • Some AM clouds, sunny and a bit warmer Friday afternoon, clear at night,
  • Sunny and a bit warmer Saturday, then clear Saturday night.
  • lows 58-52 warming to 55 Saturday night highs 72-87.
  • Sunny and a bit cooler Sunday, mostly clear in the evening, partly cloudy late Sunday night,
  • Partly cloudy and a bit cooler Monday through Tuesday night,
  • Mostly cloudy with patchy AM fog, then partly cloudy and a bit cooler Wednesday afternoon.
  • highs 86-79 lows near 56. (Seasonal Averages high 76 low 49).

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

  • Mostly cloudy and a bit cooler with a (30%) chance of showers today, (under 0.10 in. of rain possible), just mostly cloudy tonight,
  • Sunny and warmer Friday, clear at night,
  • Sunny and a bit warmer Saturday, then partly cloudy Saturday night.
  • highs 64-79 lows 53-55.
  • Partly cloudy and a bit cooler Sunday and in the evening, mostly cloudy late Sunday night,
  • Mostly cloudy with patchy AM fog, partly cloudy and a bit cooler Monday afternoon, mostly cloudy with patchy fog at night,
  • Mostly cloudy and a bit cooler with patchy fog Tuesday and Tuesday night,
  • Patchy AM fog, then just mostly cloudy Wednesday.
  • highs 75-73 lows near 54. (Seasonal Averages high 66 low 50)

Forecast for the Northern Oregon Cascades including Willamette Pass:

  • Mostly cloudy with AM showers likely (70%), a bit cooler with a good (50%) chance of showers this afternoon (0.10 in. of rain possible),  just partly cloudy with areas of fog late tonight,
  • Mostly sunny and warmer Friday, mostly clear at night,
  • Mostly sunny and a bit warmer Saturday, then mostly clear Saturday night.
  • snow level above 8,000 ft. today, free air freezing level 13,000 ft. rising to 14,000 ft. tonight, 14,000 ft. Friday, 15,000 ft. Friday night, 15,000 ft. falling to 14,000 ft. Saturday afternoon, then 14,000 ft. Saturday night.
  • highs 53-67 lows 38-44.
  • Mostly sunny and a bit warmer Sunday, mostly clear Sunday night,
  • Mostly sunny and a bit warmer Monday, partly cloudy at night,
  • Then partly cloudy and a bit cooler Tuesday through Wednesday.
  • free air freezing level 14,000 ft. Sunday through Monday night, then 13,000 ft. Tuesday through Wednesday.
  • highs 70-22 cooling to 66 Wednesday lows 45-47 cooling back to 45 Tuesday night.
  • 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.