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August 13, 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

  • NONE AT THIS TIME

HEALTH ADVISORIES

  • NOTE A CHANGE: 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.
  • A RECREATIONAL HEALTH ADVISORY FOR CRONE MILLER IN BENTON COUNTY DUE THE PRESENCE OF A CYANOBACTERIA (BLUE-GREEN ALGAE) BLOOM AND CYANOTOXINS ABOVE RECREATIONAL USE VALUES FOR HUMAN EXPOSURE HAS BEEN LIFTED. NOTE: OREGON HEALTH AUTHORITY ADVISES DOG OWNERS TO CONTINUALLY BE ALERT TO SIGNS OF CYANOBACTERIA BLOOMS, OR AREAS OF THE LAKE THAT LOOK SUSPICIOUS. BLOOMS CAN DEVELOP AND DISAPPEAR ON ANY BODY OF WATER AT ANY TIME, EVEN IN THE FALL AND WINTER IF CONDITIONS ARE FAVORABLE. ONLY A FRACTION OF WATER BODIES IN OREGON ARE MONITORED FOR CYANOBACTERIA, BLOOMS AND TOXINS DURING THE RECREATION SEASON, AND NO MONITORING OR SAMPLING IS PERFORMED ONCE RECREATION SEASON HAS ENDED. 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) has replaced the Upper Level Low Pressure Trough (“U” shape) off the California Coast. The graphics for days 1-3 show no frontal systems moving through or into Oregon. The graphics for days 3-7   Tuesday through Saturday show a front approaching from the northwest next Saturday then falling apart.

Forecast for the South Willamette Valley including Eugene-Springfield:

  • Clear tonight,
  • Some AM clouds, sunny and a bit warmer Sunday afternoon, clear Sunday night,
  • Sunny and a bit warmer Monday, clear at night,
  • Sunny and a bit warmer Tuesday, then mostly clear Tuesday night.
  • lows 54-62 highs 87-94.
  • Partly cloudy Wednesday, partly cloudy Wednesday night,
  • Partly cloudy and a bit warmer Thursday, mostly clear at night,
  • Then mostly sunny and a bit cooler Friday and Saturday, clear Friday night.
  • highs 95-92 lows 62-60. (Seasonal Averages high 85 low 52)

Forecast for the Umpqua Valley including Roseburg:

  • Mostly clear tonight,
  • Some AM clouds, sunny Sunday afternoon, clear Sunday night,
  • Patchy AM fog, sunny and a bit warmer Monday afternoon, clear at night,
  • Mostly sunny and a bit warmer Tuesday, then mostly clear Tuesday night.
  • lows 56-64 highs 86-92.
  • Partly cloudy and a bit warmer Wednesday, partly cloudy Wednesday night,
  • Mostly sunny and a bit warmer Thursday, mostly clear at night,
  • Then sunny and a bit cooler Friday and Saturday, mostly clear Friday night.
  • highs 92-94 cooling back to 92 Friday and Saturday lows 64-62. (Seasonal Averages high 87 low 58).

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

  • Mostly cloudy with patchy inland fog late tonight and Sunday AM, sunny and a bit warmer Sunday afternoon, mostly clear in the evening, partly cloudy late Sunday night,
  • Patchy AM inland fog, sunny and a bit warmer Monday, partly cloudy with patchy fog late at night,
  • Some AM clouds, sunny Tuesday afternoon, then mostly cloudy with patchy fog late Tuesday night.
  • lows 56-59 highs 74-76.
  • Patchy AM fog, mostly cloudy Wednesday and Wednesday night,
  • Partly cloudy Thursday and in the evening, mostly cloudy late at night,
  • Then partly cloudy Friday through Saturday.
  • highs near 75 lows near 58. (Seasonal Averages high 67 low 54)

Forecast for the Northern Oregon Cascades including Willamette Pass:

  • Clear tonight,
  • Mostly sunny and a bit warmer Sunday, clear Sunday night.
  • Sunny and a bit warmer Monday, clear at night,
  • Sunny and a bit warmer Tuesday, then partly cloudy Tuesday night.
  • free air freezing level 14,000 ft. tonight through Sunday night, 15,000 ft. Monday, then 16,000 ft. Monday night through Tuesday night.
  • lows 47-57 highs 77-87.
  • Partly cloudy and a bit cooler Wednesday and Wednesday night,
  • Partly cloudy and a bit cooler Thursday, partly cloudy at night,
  • Then mostly sunny and a bit cooler Friday and Saturday, mostly clear Friday night.
  • free air freezing level 16,000 ft. Wednesday, 15,000 ft. Wednesday night, then 15,000 ft. Thursday through Saturday,
  • highs 86-83 lows 58-54.

_____

  • 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.