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November 30, 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 WINTER STORM WARNING IS IN EFFECT FROM 1 AM TODAY UNTIL 4 PM THURSDAY FOR THE NORTHERN BLUE MOUNTAINS OF OREGON.
  • A WINTER STORM WARNING IS IN EFFECT FROM 4 AM TODAY UNTIL 4 PM THURSDAY FOR THE EAST SLOPES OF THE OREGON CASCADES.
  • A WINTER STORM WARNING IS IN EFFECT UNTIL 10 AM TODAY FOR THE UPPER HOOD RIVER VALLEY.
  • A WINTER STORM WARNING IS IN EFFECT FROM 4 AM TODAY UNTIL 7 AM THURSDAY FOR THE NORTHERN OREGON CASCADES.
  • A WINTER STORM WARNING IS IN EFFECT FROM 10 AM TODAY UNTIL 4 PM THURSDAY AFTERNOON FOR THE CASCADES IN LANE COUNTY.
  • A WINTER STORM WARNING IS IN EFFECT UNTIL 4 AM TODAY FOR THE WESTERN COLUMBIA GORGE.
  • A WINTER STORM WARNING IS IN EFFECT FROM 4 PM TODAY UNTIL 10 PM THURSDAY FOR THE KLAMATH BASIN, NORTHERN AND EASTERN KLAMATH COUNTY, AND WESTERN LAKE COUNTY.
  • A WINTER STORM WARNING IS IN EFFECT FROM 10 AM TODAY UNTIL 4 PM THURSDAY FOR THE SOUTH CENTRAL OREGON CASCADES, THE SISKIYOU MOUNTAINS, AND THE SOUTHERN OREGON CASCADES.
  • A WINTER STORM WATCH IS IN EFFECT FROM THURSDAY AFTERNOON THROUGH LATE THURSDAY NIGHT FOR MALHEUR COUNTY.
  • A WIND ADVISORY IS IN EFFECT UNTIL 5 AM TODAY FOR THE LOWER COLUMBIA, THE GREATER PORTLAND METRO AREA, THE CENTRAL WILLAMETTE VALLEY, AND THE SOUTH WILLAMETTE VALLEY.
  • A WIND ADVISORY IS IN EFFECT FROM 10 AM UNTIL 4 PM TODAY FOR NORTHERN AND EASTERN KLAMATH COUNTY, AND WESTERN, CENTRAL, AND EASTERN LAKE COUNTY.
  • A WINTER WEATHER ADVISORY IS IN EFFECT FROM 4 PM TODAY UNTIL 10 PM THURSDAY FOR CENTRAL AND EASTERN LAKE COUNTY.
  • A WINTER WEATHER ADVISORY IS IN  UNTIL 11 AM TODAY FOR BAKER COUNTY.
  • A WINTER STORM WARNING IS IN EFFECT FROM 10 AM TODAY UNTIL 4 PM THURSDAY ABOVE 3,000 FT. FOR EASTERN CURRY COUNTY AND JOSEPHINE COUNTY, AND THE EASTERN DOUGLAS COUNTY FOOTHILLS.

HEALTH ADVISORIES

  • A RECREATIONAL HEALTH ADVISORY IS IN EFFECT FOR WILLOW CREEK RESERVOIR IN MORROW 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 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 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) brings in northwest airflow. The graphics for days 1-3 show the complex frontal system moved through the Pacific Northwest Wednesday. The graphics for days 3-7  Saturday through Wednesday show the complex frontal systems that will move in through the period.

Forecast for the South Willamette Valley including Eugene-Springfield:

  • Mostly cloudy with showers and a bit warmer today (0.75 in. of rain possible), showers tonight with snow showers late (snow level 1,500 ft.),
  • Mostly cloudy with AM showers and snow showers, showers and a bit cooler Thursday afternoon (0.25 in. of rain possible, snow level 1,000 ft.), snow and rain likely (70%) at night (snow level 1,000 ft.),
  • Mostly cloudy with AM rain likely and a (70%) chance of snow, rain likely (70%) and a bit warmer Friday afternoon (snow level 1,500 ft.), then rain Friday night.
  • highs 48-43 warming to 46 Friday lows 33-35.
  • Mostly cloudy and a bit cooler with rain likely (70%) Saturday, a good (50%) chance evening rain, a slight (20%) chance of rain late Saturday night,
  • A mix of clouds and sun with a slight (20%) chance of rain Sunday, mostly cloudy with a slight (20%) chance of evening rain, a (40%) chance of rain late at night,
  • Mostly cloudy and a bit warmer with a (40%) chance of rain Monday, a slight (20%) chance of rain Monday night,
  • Then a mix of clouds and sun with a slight (20%) chance of rain Tuesday.
  • highs 44-46 Monday lows 32-29. (Seasonal Averages high 49 low 36)

Forecast for the Umpqua Valley including Roseburg:

  • Mostly cloudy with rain and slightly cooler today (0.50 in. of rain possible, 1-2 in. of snow possible, snow level 3,000 ft. falling to 2,500 ft.), rain and snow with patchy dense fog tonight (0.25 in. of rain possible, snow level 2,000 ft. falling to 1,500 ft.),
  • Mostly cloudy with patchy AM fog, rain and snow and a bit cooler Thursday (0.10 in. of rain possible, snow level 1,500 ft.), rain and snow likely (70%) at night (under 0.10 in. of rain possibles, snow level 900 ft.),
  • Mostly cloudy and a bit warmer with a good (50%) chance of rain and snow Friday, then rain and snow late Friday night.
  • highs 46-40 warming to 43 Friday lows 35-32 warming to 37 Friday night.
  • Mostly cloudy with AM rain and snow likely (70%), showers likely (70%) and slightly warmer Saturday afternoon, a good (50%) chance of rain and snow showers late Saturday night,
  • Mostly cloudy with a slight (20%) chance of rain and snow showers Sunday and at night,
  • Mostly cloudy with a slight (20%) chance of rain and snow showers Monday and Monday night,
  • Then mostly cloudy with a slight (20%) chance of rain and snow showers Tuesday.
  • highs near 44 lows near 32. (Seasonal Averages high 50 low 38).

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

  • Mostly cloudy and a bit warmer with rain today (1.00 in. of rain possible) and breezy (Wind: SW 15-25 mph, AM gusts to 40 mph), coastal rain patchy fog tonight while inland evening rain with inland rain and snow and patchy fog late tonight (0.25 in. of rain possible),
  • Mostly cloudy with patchy AM coastal fog and rain with a slight (20%) chance of thunderstorms and coastal rain likely (70%) with a slight (20%) chance of coastal thunderstorms and a bit cooler Thursday afternoon while inland rain and snow and fog and a bit cooler Thursday afternoon (0.25 in. of rain possible), coastal rain likely (70%) at night while inland rain and snow likely (70%) late at night (0.10 in. of rain possible),
  • Mostly cloudy with AM rain likely (70%), rain and a bit warmer Friday afternoon, then rain and breezy Friday night.
  • highs 52-48 warming to 53 Friday lows 38-36 warming to 38 Saturday.
  • Mostly cloudy with AM rain, showers likely (70%) Saturday afternoon, a (40%) chance of showers Saturday night,
  • Mostly cloudy and a bit warmer with a slight (20%) chance of showers Sunday, a slight (20%) chance of showers at night,
  • Mostly cloudy with a slight (20%) chance of showers Monday and Monday night
  • Then partly cloudy with a slight (20%) chance of showers Tuesday.
  • highs 53-54 lows near 35. (Seasonal Averages high 54 low 42)

Forecast for the Northern Oregon Cascades including Willamette Pass:

  • Mostly cloudy with AM rain and snow, snow and rain showers and a bit warmer this afternoon, (1.50 in. of rain possible, 10-16 in. of snow possible, snow may be heavy at times), and blustery (Pass Wind: SW 15-25 mph gusts to 45 mph), snow showers tonight (5-9 in. of snow possible, snow possibly heavy at times),
  • Mostly cloudy and a bit cooler with snow showers Thursday, evening snow likely (70%), a good (50%) chance of snow late at night,
  • Mostly cloudy and a bit warmer with a good (50%) chance of snow Friday,  then snow likely (70%) Friday night.
  • snow level 3,500 ft. today, 2,000 ft. tonight, at the surface Thursday through Friday, then 2,000 ft. Friday night.
  • highs 32-24 warming to 27 Friday lows 22-17 warming to 23 Friday night.
  • Cloudy with AM snow likely (70%), a bit warmer with a good (50%) chance of snow and rain Saturday afternoon, a good (50%) chance of evening snow, a slight (20%) chance of snow late Saturday night,
  • Clouds and sun with a slight (20%) chance of AM snow, a mix of clouds and sun Sunday afternoon, mostly cloudy with a slight (20%) chance of snow at night,
  • A mix of clouds and sun with a slight (20%) chance of snow Monday, mostly cloudy with a slight (20%) chance of snow Monday night,
  • Clouds and sun with a slight (20%) chance of AM snow, then a mix of clouds and sun and a bit warmer Tuesday afternoon.
  • snow level 2,500 ft. Saturday through Sunday, 2,000 ft. Sunday night and Monday, 2,500 ft. Monday night, then 1,500 ft. Tuesday.
  • highs 30-32 lows 20-17.
  • 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.

_____

  • For all of your Eugene-Springfield and Lane County News, Weather, and Sports go to: EugeneDailyNews.com

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10/31 Showers with patchy fog overnight.

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

  • Mostly cloudy with rain tonight (0.75 in. of rain possible),
  • Mostly cloudy  with coastal showers and a slight (20%) chance of thunderstorms Tuesday while inland AM showers with inland showers and a slight (20%) chance of thunderstorms Tuesday afternoon (0.25 in. of rain possible), showers with a slight (20%) chance of thunderstorms Tuesday night (0.25 in. of rain possible),
  • Mostly cloudy with AM showers and a slight (20%) chance of thunderstorms, showers likely (70%) and a bit warmer Wednesday afternoon (0.25 in. of rain possible), a (30%) chance of evening showers, mostly cloudy with patchy inland fog late at night (under 0.10 in. of rain possible),
  • Mostly cloudy start, partly cloudy and a bit warmer Thursday afternoon, then cloudy with a (40%) chance of rain Thursday night.
  • lows 47-40 warming to 46 Thursday night highs 56-59.
  • Cloudy with a good (50%) chance of AM rain, rain likely (70%) and a bit warmer Friday afternoon, rain Friday night,
  • Mostly cloudy with rain likely (70%) and a bit cooler Saturday and in the evening, rain late at night,
  • Mostly cloudy with rain and a bit warmer Sunday, rain likely (70%) Sunday night,
  • Then mostly cloudy and a bit warmer with rain likely (70%) Monday.
  • highs 62-58 warming back to 62 Monday lows 49-45. (Seasonal Averages high 60 low 45)

Forecast for the Northern Oregon Cascades including Willamette Pass:

  • Mostly cloudy with evening showers, showers and snow showers with patchy fog late tonight (2 in. of snow possible),
  • Mostly cloudy with patchy fog and snow showers and rain showers and a bit cooler Tuesday (1-4 in. of snow possible), showers with patchy evening fog, snow showers late Tuesday night (1-4 in. of snow possible),
  • Mostly cloudy with snow showers and a bit cooler Wednesday, a (40%) chance of  evening snow showers, widespread frost late at night,
  • Partly cloudy with widespread AM frost, partly cloudy and a bit warmer Thursday afternoon, widespread evening frost, mostly cloudy with a slight (20%) chance of snow with a good (50%) chance of rain late Thursday night.
  • snow level 7,000 ft. falling to 4,500 ft. late tonight, 3,500 ft. Tuesday, 2,500 ft. Tuesday night through Wednesday night, free air freezing level at the surface Thursday, then snow level 3,000 ft. Thursday night, then 7,500 ft. Friday and Friday night.
  • lows 28-17 warming to 24 Thursday night highs 32-29 warming to 33 Thursday.
  • Cloudy with a good (50%) chance of rain and a bit warmer Friday, rain Friday night,
  • Mostly cloudy and a bit cooler with rain and snow likely (70%) Saturday, snow and rain at night,
  • Mostly cloudy with snow and rain and a bit cooler Sunday, snow and rain likely (70%) Sunday night,
  • Then mostly cloudy and a bit warmer with rain and snow likely (70%) Monday.
  • 7,500 ft. Friday and Friday night, 5,000 ft. Saturday, 4,000 ft. Saturday night and Sunday, 3,500 ft. Sunday night, then 5,000 ft. Monday.
  • highs 38-33 warming to 35 Monday lows 26-34 cooling to 29 Saturday night.
  • 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

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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.