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August 31, 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 RED FLAG WARNING IS IN EFFECT UNTIL 8 PM TONIGHT DUE TO GUSTY WINDS AND LOW RELATIVE HUMIDITY FOR THE EAST SLOPES OF THE NORTHERN OREGON CASCADES AND THE LOWER COLUMBIA BASIN OF OREGON.
  • A FIRE WEATHER WATCH IS IN EFFECT FOR WIND AND LOW RELATIVE HUMIDITY UNTIL 7 PM FRIDAY FOR THE DESCHUTES NATIONAL FOREST- MINUS SISTERS RANGER DISTRICT.
  • A HEAT ADVISORY IS IN EFFECT FROM 11 AM UNTIL 8 PM TODAY FOR THE LOWER COLUMBIA BASIN OF OREGON.
  • A HEAT ADVISORY IS IN EFFECT UNTIL 11 PM SUNDAY NIGHT FOR HARNEY COUNTY, BAKER COUNTY, MALHEUR COUNTY, AND THE OREGON LOWER TREASURE VALLEY.
  • AN AIR QUALITY ADVISORY IS IN EFFECT UNTIL 9 PM THURSDAY FOR THE GREATER PORTLAND METRO AREA, THE CENTRAL WILLAMETTE VALLEY, AND THE SOUTH WILLAMETTE VALLEY.
  • AN AIR QUALITY ALERT IS IN EFFECT UNTIL 5 PM THURSDAY FOR CURRY COUNTY, JACKSON COUNTY, AND JOSEPHINE COUNTY  DUE TO SMOKE FROM THE RUM CREEK WILDFIRE.

HEALTH ADVISORIES

  • 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: A RECREATIONAL HEALTH ADVISORY IS IN EFFECT FOR THE WILLAMETTE RIVER NEAR CATHEDRAL PARK IN NORTH PORTLAND  DUE THE PRESENCE OF A CYANOBACTERIA (BLUE-GREEN ALGAE) BLOOM AND CYANOTOXINS ABOVE RECREATIONAL USE VALUES FOR HUMAN EXPOSURE. IT HAS BEEN EXPANDED UPSTREAM (SOUTH) TO THE WILLAMETTE COVE AREA NEAR THE SP&S RAILROAD BRIDGE. 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. 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) will allow some marine air to move  into the Pacific Northwest for some cooling. The graphics for days 1-3 show no frontal activity through the period. The graphics for days 3-7 Saturday through Wednesday show more active weather patterns over the Pacific Northwest. A cold front will push through Oregon Saturday and Sunday. Another cold front will be to our northwest Monday sliding through Oregon Tuesday and next Wednesday.

Forecast for the South Willamette Valley including Eugene-Springfield:

  • Clear tonight,
  • Sunny  Thursday, clear Thursday night,
  • Mostly sunny and a bit cooler Friday, partly cloudy at night,
  • Some AM clouds, sunny and a bit warmer Saturday afternoon, then clear Saturday night.
  • lows near 54 highs 92-84 warming to 86 Saturday.
  • Mostly sunny and a bit warmer Sunday, mostly clear Sunday night,
  • Mostly sunny and a bit cooler Monday (Labor Day), clear at night,
  • Sunny and a bit warmer Tuesday, mostly clear Tuesday night,
  • Then mostly sunny and a bit cooler Wednesday.
  • highs 88-86 warming back to 88 Tuesday cooling to 82 Wednesday  lows 54-52. (Seasonal Averages high 82 low 50)

Forecast for the Umpqua Valley including Roseburg:

  • Clear and hazy tonight,
  • Sunny and hazy Thursday, clear and hazy Thursday night,
  • Sunny and hazy and a bit cooler Friday, mostly clear in the evening, partly cloudy late at night,
  • Some AM clouds, sunny Saturday afternoon, then clear Saturday night.
  • lows 60-57 highs 93-87.
  • Sunny and a bit warmer Sunday, mostly clear Sunday night,
  • Mostly sunny and a bit cooler Monday (Labor Day), clear Monday night,
  • Mostly sunny and a bit warmer Tuesday, mostly clear Tuesday night,
  • Then sunny and a bit cooler Wednesday.
  • highs 88-83 lows 56-58 cooling to 54 Tuesday night. (Seasonal Averages high 84 low 55).

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

  • Becoming mostly cloudy tonight with patchy coastal fog late while mostly cloudy with inland haze late tonight,
  • AM clouds with patchy coastal fog and inland haze, sunny and a bit warmer with inland haze Thursday afternoon, partly cloudy with inland evening haze, mostly cloudy with patchy coastal fog late and inland haze late Thursday night,
  • Partly cloudy with patchy AM coastal fog and inland haze, partly cloudy with inland haze and a bit cooler Friday afternoon, mostly cloudy at night,
  • Mostly sunny and a bit warmer Saturday, then mostly clear Saturday night.
  • lows near 57 highs 75-73 warming to 77 Saturday.
  • Partly cloudy and a bit cooler Sunday, partly cloudy Sunday night,
  • Mostly sunny and a bit warmer Monday (Labor Day), mostly clear at night,
  • Mostly sunny and a bit cooler Tuesday, partly cloudy Tuesday night,
  • Then sunny and a bit cooler Wednesday.
  • highs 75-77 cooling back to 75 Tuesday cooling to 73 Wednesday lows 59-56. (Seasonal Averages high 68 low 53)

Forecast for the Northern Oregon Cascades including Willamette Pass:

  • Clear and hazy with areas of smoke late tonight,
  • Sunny and hazy with areas of smoke and a bit warmer Thursday, clear with evening haze, just clear Thursday night,
  • Sunny and a bit cooler Friday, mostly clear at night,
  • Mostly sunny and a bit cooler Saturday, then mostly clear Saturday night.
  • freezing level 16,000 ft. rising to above 16,000 ft. late tonight, above 16,000 ft. Thursday and Thursday night, 16,000 ft. Friday, 16,000 ft. falling to 15,000 ft. late Friday night, then above 16,000 ft. Saturday and Saturday night.
  • lows 53-49 warming to 52 Friday night highs 85-78.
  • Sunny and a bit warmer Sunday, mostly clear Sunday night,
  • Mostly sunny and a bit cooler Monday (Labor Day), mostly clear at night,
  • Sunny and a bit warmer Tuesday, mostly clear Tuesday night,
  • Then mostly sunny and cooler Wednesday.
  • free air freezing level above 16,000 ft. Sunday and Sunday night, 16,000 ft. Monday through Tuesday, 15,000 ft. Tuesday night, then 12,000 ft. Wednesday.
  • highs near 79-77 warming to 82 Tuesday cooling to 72 Wednesday lows 48-52 cooling to 47 Tuesday night.

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  • 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 actual weather will conform to the projected forecast.

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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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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

Posted In Uncategorized

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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.