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August 4, 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 ALERT IS IN EFFECT THROUGH 5 PM FRIDAY FOR JACKSON COUNTY AND KLAMATH COUNTIES.
  • THE PUBLIC HEALTH ADVISORY ISSUED FOR UNSAFE LEVELS OF FECAL BACTERIA IN OCEAN WATERS AT D RIVER BEACH IN LINCOLN COUNTY HAS BEEN LIFTED.
  • A RECREATIONAL HEALTH ADVISORY IS IN EFFECT FOR AREAS AROUND EAGLE RIDGE  COUNTY PARK IN UPPER KLAMATH LAKE IN KLAMATH 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 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 Low Pressure Trough (“U” shape) that is to our Northwest is moving to the east. The graphics for days 1-3 show the frontal system moving through Oregon today. The graphics for days 3-7   Monday through Thursday show a frontal system pushing into the Pacific Northwest Wednesday and next Thursday.

Forecast for the South Willamette Valley including Eugene-Springfield:

  • Partly cloudy tonight,
  • Mostly sunny and a bit warmer Friday, clear Friday night,
  • Sunny and Hot Saturday, clear at night,
  • Sunny and Very Hot Sunday, then mostly clear Sunday night.
  • lows 53-59 highs 88-98.
  • Mostly sunny Monday, mostly clear Monday night,
  • Some AM clouds, mostly sunny and a bit cooler Tuesday afternoon, mostly clear at night,
  • Some AM clouds, mostly sunny and a bit cooler Wednesday afternoon, mostly clear Wednesday night,
  • Then mostly sunny and a bit warmer Thursday.
  • highs 90-86 warming to 89 Thursday lows 58-55. (Seasonal Averages high 86 low 52)

Forecast for the Umpqua Valley including Roseburg:

  • Some AM clouds, sunny and cooler this afternoon, mostly clear tonight,
  • Mostly sunny and a bit warmer Friday, mostly clear at night,
  •  Sunny and a bit warmer Saturday, then clear Saturday night.
  • highs 83-92 lows 57-63.
  • Sunny and a bit warmer Sunday, mostly clear Sunday night,
  • Sunny and a bit cooler Monday afternoon, clear at night,
  • Then mostly sunny and a bit cooler Tuesday and Wednesday, mostly clear Tuesday night.
  • highs 97-85 lows 62-60 (Seasonal Averages high 87 low 58).

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

  • Mostly clear tonight,
  • Sunny and a bit warmer Friday, mostly clear Friday night,
  •  Sunny and a bit warmer Saturday, clear at night,
  • Sunny and a bit warmer Sunday, then mostly clear Sunday night.
  • lows 57-63 highs 86-97.
  • Mostly sunny Monday, mostly clear Monday night,
  • Mostly sunny and a bit cooler Tuesday and Wednesday, mostly clear both nights,
  • Then mostly sunny and a bit warmer Thursday.
  • highs 90-85 warming to 88 Thursday lows 62-58. (Seasonal Averages high 87 low 58).

Forecast for the Northern Oregon Cascades including Willamette Pass:

  • Mostly clear tonight,
  • Sunny and a bit warmer Friday, mostly clear Friday night,
  • Sunny and a bit warmer Saturday, mostly clear with patchy inland fog late Saturday night,
  • Sunny and a bit cooler Sunday, mostly clear in the evening, then partly cloudy with patchy fog late Sunday night.
  • lows 53-56 highs 72-76 cooling to 74 Sunday.
  • Partly cloudy and a bit cooler Monday and in the evening, mostly cloudy Monday night,
  • AM clouds, sunny Tuesday afternoon, partly cloudy in the evening, mostly cloudy with patchy fog late at night,
  • Then partly cloudy and a bit warmer Wednesday and Thursday, partly cloudy Wednesday night.
  • highs 75-72 warming to 74 Wednesday lows near 56. (Seasonal Averages high 67 low 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.