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August 19, 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

The Upper Level High Pressure Ridge (“Arch” shape) down in the Four Corners area of the West has weakened it’s hold on us The graphics for days 1-3 show no frontal systems moving through or into Oregon. The graphics for days 3-7 Monday through Friday show a cold front moving over the Pacific Northwest Monday and Tuesday. Another front will be to our northwest next Friday.

Forecast for the South Willamette Valley including Eugene-Springfield:

  • Partly cloudy tonight,
  • AM clouds, sunny and a bit warmer Saturday afternoon, mostly clear Saturday night,
  • AM sun, partly cloudy and a bit warmer Sunday, mostly cloudy in the evening, becoming mostly clear late at night,
  • Mostly sunny and a bit cooler Monday, then clear Monday night.
  • lows 57-54 warming to 56 Sunday night and Monday night highs 89-92 cooling to 88 Monday.
  • Sunny and a bit warmer Tuesday, clear Tuesday night,
  • Mostly sunny and a bit warmer Wednesday, clear at night,
  • Sunny and a bit warmer Thursday, clear Thursday night,
  • Then sunny and a bit cooler Friday.
  • highs 89-97 cooling to 94 Friday lows 58-60. (Seasonal Averages high 84 low 51)

Forecast for the Umpqua Valley including Roseburg:

  • Becoming mostly cloudy with patchy fog late tonight,
  • AM clouds and patchy fog, sunny and a bit warmer Saturday afternoon, mostly clear with patchy fog late Saturday night,
  • AM sun with patchy fog, partly cloudy and a bit warmer Sunday afternoon, partly cloudy in the evening, mostly clear with patchy fog late at night,
  • Patchy AM fog, sunny and a bit cooler Monday, then clear Monday night.
  • lows near 60-58 highs 89-92 cooling to 87 Monday.
  • Sunny and a bit warmer Tuesday, Wednesday, and Thursday, clear each nights,
  • Then sunny and a bit cooler Friday.
  • highs 89-97 cooling to 94 Friday lows near 62. (Seasonal Averages high 86 low 57).

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

  • Becoming mostly cloudy with patchy fog late tonight,
  • AM clouds with patchy fog, sunny and a bit warmer Saturday afternoon, mostly clear in the evening, partly cloudy with patchy fog late Saturday night,
  • Patchy AM fog, partly cloudy Sunday, mostly cloudy in the evening,  partly cloudy with areas of coastal fog late while patchy inland fog late at night,
  • Some AM clouds, sunny Monday afternoon, mostly clear in the evening, then partly cloudy late Monday night.
  • lows 60-56 warming to 58 Monday night highs near 76.
  • Some AM clouds, sunny and a bit warmer Tuesday afternoon, partly cloudy Tuesday night,
  • Partly cloudy Wednesday and in the evening, mostly cloudy at night,
  • Then partly cloudy Thursday through Friday.
  • highs near 77 lows 58-60 cooling back to 58 Thursday night. (Seasonal Averages high 67 low 54)

Forecast for the Northern Oregon Cascades including Willamette Pass:

  • Partly cloudy and hazy tonight,
  • Mostly sunny and hazy and a bit warmer Saturday, clear Saturday night,
  • Mostly sunny and a bit warmer Sunday, partly cloudy at night,
  • Mostly sunny and cooler Monday, then mostly clear Monday night.
  • free air freezing level 15,000 ft. tonight and Saturday, 16,000 ft. Saturday night, 15,000 ft. Sunday and Sunday night, 14,000 ft. Monday, then 16,000 ft. Monday night.
  • lows 50-52 cooling to 48 Monday night highs 80-84 cooling to 75 Monday.
  • Sunny and a bit warmer Tuesday, clear Tuesday night,
  • Sunny and a bit warmer Wednesday, mostly clear at night,
  • Mostly sunny and a bit warmer Thursday, mostly clear Thursday night,
  • Then mostly sunny and a bit cooler Friday.
  • free air freezing level 16,000 ft. Tuesday and Tuesday night, then 15,000 ft. Wednesday through Friday.
  • highs 78-86 cooling to 82 Friday lows 52-56.

_____

  • 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.