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December 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

  • A WINTER WEATHER ADVISORY IS IN EFFECT UNTIL NOON TODAY FOR THE COAST RANGE OF WESTERN OREGON, THE SOUTH WILLAMETTE VALLEY, THE CASCADE FOOTHILLS IN LANE COUNTY, AND THE CASCADES IN LANE COUNTY.
  • A WINTER WEATHER ADVISORY IS IN EFFECT UNTIL 6 PM THIS EVENING FOR THE COAST RANGE OF NORTHWEST OREGON, THE LOWER COLUMBIA, THE GREATER PORTLAND METRO AREA, THE CENTRAL WILLAMETTE VALLEY, THE NORTHERN OREGON CASCADE FOOTHILLS, AND THE NORTHERN OREGON CASCADES.
  • A WINTER WEATHER ADVISORY IS IN EFFECT UNTIL 10 PM TONIGHT FOR THE WESTERN COLUMBIA RIVER GORGE,.
  • A WINTER WEATHER ADVISORY IS IN EFFECT UNTIL 10 PM TONIGHT FOR THE FOOTHILLS OF THE SOUTHERN BLUE MOUNTAINS OF OREGON, NORTH CENTRAL OREGON, AND CENTRAL OREGON.
  • A WINTER WEATHER ADVISORY IS IN EFFECT FROM 4 AM UNTIL 10 PM TODAY FOR THE LOWER COLUMBIA BASIN OF OREGON AND THE FOOTHILLS OF THE BLUE MOUNTAINS OF OREGON.
  • A WINTER WEATHER ADVISORY IS IN EFFECT UNTIL 10 PM TONIGHT FOR THE EASTERN COLUMBIA GORGE OF OREGON.
  • A WINTER WEATHER ADVISORY IS IN EFFECT UNTIL 10 AM TODAY FOR THE OREGON LOWER TREASURE VALLEY.
  • A WINTER WEATHER ADVISORY IS IN EFFECT FROM 4 AM UNTIL 10 PM TODAY FOR THE UPPER HOOD RIVER VALLEY.
  • A WINTER WEATHER ADVISORY IS IN EFFECT UNTIL 10 AM TODAY FOR HARNEY COUNTY AND MALHEUR COUNTY.

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 frontal activity through Monday. The graphics for days 3-7  Wednesday through Sunday show High Pressure taking over until a frontal systems move in Thursday, Friday, and next Sunday.

Forecast for the South Willamette Valley including Eugene-Springfield:

  • Mostly cloudy with AM rain and freezing rain, good (50%) chance of rain and a bit cooler this afternoon (under 0.10 in. of rain possible), a slight (20%) chance of showers and freezing rain tonight (under 0.10 in. of rain possible),
  • Mostly cloudy with a slight (20%) chance of AM rain and freezing rain, just mostly cloudy Monday afternoon, a slight (20%) chance of showers at night,
  • Mostly cloudy and a bit warmer with a slight (20%) chance of showers Tuesday and in the evening, then just mostly cloudy late Tuesday night.
  • highs 43-46 lows 35-32.
  • Mostly cloudy and a bit warmer Wednesday, a (%) chance of evening rain, rain likely (70%) late Wednesday night,
  • Mostly cloudy with rain likely (70%) and a bit cooler Thursday, rain likely (70%) at night,
  • Mostly cloudy and a bit cooler with rain likely (70%) Friday, rain likely (70%) Friday night,
  • Then mostly cloudy with rain likely (70%) Saturday.
  • highs 47-44 lows near 33. (Seasonal Averages high 48 low 35)

Forecast for the Umpqua Valley including Roseburg:

  • Mostly cloudy with AM rain likely (70%), a good (50%) chance of rain this afternoon (under 0.10 in. of rain possible, snow level 3,500 ft.), a (30%) chance of rain tonight (under 0.10 in. of rain possible, snow level 3,000 ft. falling to 2,500 ft. late tonight),
  • Mostly cloudy with patchy AM fog and a (30%) chance of  rain and snow, partly cloudy with a slight (20%) chance of rain Monday afternoon (snow level 2,500 ft. rising to 3,500 ft. in the afternoon), mostly cloudy with patchy fog late at night,
  • Mostly cloudy start, partly cloudy and a bit cooler Tuesday afternoon, then mostly cloudy with patchy fog Tuesday night.
  • highs 48-45 lows 35-33.
  • Mostly cloudy start, partly cloudy and a bit warmer Wednesday, mostly cloudy with a slight (20%) chance of evening rain, a slight (20%) chance of rain and snow late Wednesday night,
  • Mostly cloudy with AM rain and snow likely (70%), rain likely (70%)  and a bit warmer Thursday afternoon, evening rain and snow likely (70%), a  good (50%) chance of rain and snow at night,
  • Mostly cloudy and a bit cooler with a good (50%) chance of rain and snow Friday and in the evening, rain and snow likely (70%) late Friday night,
  • Then rain and snow likely (70%) Saturday.
  • highs 46-42 lows near 34. (Seasonal Averages high 49 low 38).

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

  • Mostly cloudy and a bit warmer with rain likely (70%) today (under 0.10 in. of rain possible), a good (50%) chance of rain tonight with patchy coastal fog late tonight (under 0.10 in. of rain possible),
  • Mostly cloudy with patchy AM fog, partly cloudy and a bit cooler with a (30%) chance of showers Monday afternoon (under 0.10 in. of rain possible), areas of evening coastal fog with patchy coastal fog late while patchy inland fog late at night,
  • Mostly cloudy start, partly cloudy and a bit cooler Tuesday afternoon and evening, then mostly with patchy fog late Tuesday night.
  • highs 56-54 lows 38-35.
  • Mostly cloudy in the AM, partly cloudy Wednesday afternoon, mostly cloudy with a(20%) chance of evening rain, rain likely (70%) Wednesday night,
  • Mostly cloudy with rain likely (70%) Thursday and at night,
  • Mostly cloudy and a bit cooler with rain likely (70%) Friday and Friday night,
  • Then mostly cloudy with rain likely (70%) Saturday.
  • highs 54-52 lows near 36. (Seasonal Averages high 54 low 41)

Forecast for the Northern Oregon Cascades including Willamette Pass:

  • Mostly cloudy with AM snow and a good (50%) chance of rain, a good (50%) chance of rain this afternoon (under 0.10 in. of rain possible, 1 in. of snow possible), a (30%) chance of evening rain and snow, a slight (20%) chance of snow showers late tonight (under 0.10 in. of rain possible, no snow accumulation expected),
  • Clouds and sun with a slight (20%) chance of AM snow, a mix of clouds and sun Monday afternoon, just mostly cloudy Monday night,
  • A mix of clouds and sun Tuesday, partly cloudy in the evening, then mostly cloudy late Tuesday night.
  • snow level 3,500 ft. today, 3,500 ft. falling to 2,000 ft. late tonight, 2,500 ft. Monday morning, free air freezing level 4,000 ft. Monday night, then at the surface Tuesday and Tuesday night.
  • highs near 32 lows 22-18.
  • A mix of clouds and sun Wednesday, mostly cloudy with a slight (20%) chance of evening snow, a good (50%) chance of snow late Wednesday night,
  • Mostly cloudy with a good (50%) chance of AM snow, snow and rain likely (70%) Thursday afternoon, a good (50%) chance of rain at night,
  • Mostly cloudy and a bit cooler with a good (50%) chance of snow Friday and Friday night,
  • Then mostly cloudy with snow likely (70%) Saturday.
  • free air freezing level 4,000 ft. Wednesday, snow level 2,000 ft. Wednesday night, 2,500 ft. Thursday and Thursday night, then 2,000 ft.  Friday through Saturday.
  • highs 30-32 cooling to 28 Friday warming to 30 Saturday lows 19-22 cooling to 20 Friday night.
  • 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.