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September 5, 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 FROM NOON UNTIL 9 PM TUESDAY FOR WIND AND LOW RELATIVE HUMIDITY FOR THE DESCHUTES NATIONAL FOREST – MINUS SISTERS RANGER DISTRICT.
  • A RED FLAG WARNING IS IN EFFECT FROM 1 PM TUESDAY UNTIL MIDNIGHT TUESDAY NIGHT FOR SIGNIFICANTLY UNSTABLE CONDITIONS FOR THE WILLAMETTE NATIONAL FOREST.
  • A FIRE WEATHER WATCH IS IN EFFECT FROM WEDNESDAY AFTERNOON THROUGH WEDNESDAY EVENING FOR WIND AND LOW RELATIVE HUMIDITY FOR THE EAST SLOPES OF THE CENTRAL OREGON CASCADES, THE EAST SLOPES OF THE NORTHERN OREGON CASCADES AND THE LOWER COLUMBIA BASIN OF OREGON.
  • A RED FLAG WARNING IS IN EFFECT FROM 1 PM UNTIL 8 PM TUESDAY FOR THE UMPQUA NATIONAL FOREST, THE WESTERN ROGUE BASIN INCLUDING THE ILLINOIS VALLEY, THE SISKIYOU MOUNTAINS, THE EASTERN ROGUE VALLEY, AND THE SOUTHERN OREGON CASCADES.
  • A RED FLAG WARNING IS IN EFFECT FROM 1 PM UNTIL 8 PM TUESDAY FOR STRONG GUSTY WIND AND LOW RELATIVE HUMIDITY FOR THE KLAMATH BASIN AND THE FREMONT-WINEMA NATIONAL FOREST.
  • A FIRE WEATHER WATCH IS IN EFFECT FROM TUESDAY EVENING UNTIL WEDNESDAY EVENING  FOR DRY AND UNSTABLE CONDITIONS FOR THE NORTHERN BLUE MOUNTAINS OF OREGON AND THE WALLOWA DISTRICT.
  • AN AIR QUALITY ADVISORY IS IN EFFECT UNTIL 3 PM TUESDAY FOR DESCHUTES  AND WALLOWA COUNTIES.
  • AN AIR QUALITY ALERT IS IN EFFECT UNTIL 11 AM WEDNESDAY FOR CURRY COUNTY, JACKSON COUNTY, JOSEPHINE COUNTY, KLAMATH COUNTY, AND LAKE COUNTY  DUE TO SMOKE FROM THE RUM CREEK WILDFIRE.
  • A HEAT ADVISORY IS IN EFFECT FROM NOON TUESDAY UNTIL 11 PM WEDNESDAY FOR THE EASTERN DOUGLAS COUNTY FOOTHILLS , THE SOUTH CENTRAL OREGON CASCADES, EASTERN CURRY AND JOSEPHINE COUNTIES, JACKSON COUNTY, THE SISKIYOU MOUNTAINS, THE SOUTHERN OREGON CASCADES, AND THE KLAMATH BASIN.
  • A HEAT ADVISORY IS IN EFFECT FROM MIDNIGHT TONIGHT UNTIL 11 PM WEDNESDAY NIGHT FOR HARNEY COUNTY, BAKER COUNTY, MALHEUR COUNTY, AND THE OREGON LOWER TREASURE VALLEY.
  • A HEAT ADVISORY IS IN EFFECT FROM NOON TUESDAY UNTIL 11 PM WEDNESDAY FOR NORTHERN AND EASTERN KLAMATH COUNTY AND WESTERN, CENTRAL, AND EASTERN LAKE COUNTY.

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

  • An Upper Level High Pressure Ridge (“Arch” shape) moves closer to the coast to keep our warm weather pattern in place. The graphics for days 1-3 show a weak cold front moving through Oregon today. The graphics for days 3-7 Thursday through Monday show more active weather patterns over the Pacific Northwest with frontal activity Thursday. Another cold front will be approaching from the northwest between Saturday and pushing through Sunday and next Monday.

Forecast for the South Willamette Valley including Eugene-Springfield:

  • Clear tonight,
  • Sunny and hazy and warmer Tuesday afternoon, mostly clear and hazy Tuesday night,
  • AM haze, partly cloudy and a bit cooler Wednesday afternoon and evening, clear late at night,
  • Sunny and a bit cooler Thursday, then clear Thursday night.
  • lows 50-56 cooling back to 50 Wednesday night highs 93-84.
  • Sunny and hazy and warmer Friday, clear and hazy Friday night,
  • Sunny Saturday, partly cloudy at night,
  • Mostly sunny and cooler Sunday, mostly clear Sunday night,
  • Then mostly sunny and a bit cooler Monday.
  • highs 96-82 lows 55-52. (Seasonal Averages high 81 low 50)

Forecast for the Umpqua Valley including Roseburg:

  • Clear and hazy late tonight,
  • Sunny and warmer Tuesday, mostly clear Tuesday night,
  • AM haze, sunny and a bit cooler Wednesday afternoon, mostly clear at night,
  • Sunny and a bit cooler Thursday, then clear Thursday night.
  • lows 55-62 cooling to 54 Thursday night highs 98-86.
  • Sunny and warmer Friday, mostly clear Friday night,
  • Mostly sunny and a bit warmer Saturday, partly cloudy in the evening, mostly clear late at night,
  • Sunny and a bit cooler Sunday, mostly clear in the evening, partly cloudy late Sunday night,
  • Then sunny and a bit cooler Monday.
  • highs 96-98 cooling to 84 Monday lows 54-62 cooling to 56 Sunday night. (Seasonal Averages high 83 low 54).

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

  • Mostly clear tonight,
  • Sunny and a bit warmer Tuesday, mostly clear in the evening, partly cloudy late Tuesday night,
  • AM sun, partly cloudy and a bit cooler Wednesday afternoon, partly cloudy at night,
  • Sunny and a bit cooler Thursday, then mostly clear Thursday night.
  • lows 55-57 cooling back to 55 Thursday night highs 77-74.
  • Sunny and a bit warmer Friday, mostly clear Friday night,
  • Mostly sunny and a bit cooler Saturday, partly cloudy at night,
  • Partly cloudy and a bit cooler Sunday, mostly cloudy Sunday night,
  • Then partly cloudy and a bit cooler Monday.
  • highs 82-72 lows 54-57. (Seasonal Averages high 67 low 53)

Forecast for the Northern Oregon Cascades including Willamette Pass:

  • Clear and hazy with areas of smoke tonight,
  • Hazy with areas of AM smoke, sunny and hazy and warmer Tuesday, mostly clear and hazy with areas of smoke Tuesday night,
  • Mostly sunny and hazy with areas of AM smoke, partly cloudy and hazy with areas of smoke and a bit cooler Wednesday afternoon, partly cloudy and hazy with areas of smoke at night,
  • Sunny and hazy with areas of smoke and a bit cooler Thursday, then mostly clear and hazy with areas of smoke Thursday night.
  • free air freezing level above 16,000 ft. tonight, 16,000 ft. Tuesday and Tuesday night, 15,000 ft. Wednesday and Wednesday night, 16,000 ft. Thursday, then above 16,000 ft. Thursday night.
  • lows 53-58 cooling to 47 Thursday night highs 89-76.
  • Mostly sunny and hazy with areas of smoke and a bit warmer Friday, mostly clear and hazy with patchy smoke Friday night,
  • Mostly sunny and a bit warmer Saturday, partly cloudy at night,
  • Mostly sunny and a bit cooler Sunday, partly cloudy Sunday night,
  • Some AM clouds, then mostly sunny and a bit cooler Monday afternoon.
  • free air freezing level above 16,000 ft. Friday and Friday night, 16,000 ft. Saturday, 15,000 ft. Saturday  night and Sunday, 14,000 ft. Sunday night, then 13,000 ft. Monday.
  • highs near 79-84 cooling to 72 Monday lows 52-48.
  • 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.