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February 8, 2023

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 WIND ADVISORY IS IN EFFECT FROM 1 PM THURSDAY UNTIL 7 AM FRIDAY FOR THE GRANDE RONDE VALLEY AND THE NORTHERN BLUE MOUNTAINS OF OREGON.

HEALTH ADVISORIES

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) takes over clearing skies and removed the rain for a day. Upper level Low Pressure takes over again. The graphics for days 1-3 show the next frontal system poised to move into the Pacific Northwest late Thursday. The graphics for days 3-7 show more frontal activity moving our way Saturday through next Wednesday.

Forecast for the South Willamette Valley including Eugene-Springfield:

  • Partly cloudy tonight,
  • Partly cloudy and warmer with a good (50%) chance of rain Thursday afternoon (under 0.10 in. of rain possible), mostly cloudy with rain likely (70%) Thursday night (under 0.10 in. of rain possible),
  • Mostly cloudy and cooler with rain likely (70%) Friday, partly cloudy with a slight (20%) chance of evening rain, just partly cloudy late at night,
  • A mix of clouds and sun and a bit cooler Saturday, then partly cloudy late Saturday night.
  • lows 32-40 cooling to 30 Saturday night highs 58-46.
  • A mix of clouds and sun and a bit warmer with a slight (20%) chance of rain Sunday afternoon, mostly cloudy with a slight (20%) chance of rain Sunday night,
  • Mostly cloudy with a (40%) chance of AM rain, rain likely (70%) and a bit cooler Monday afternoon, rain likely (70%) at night,
  • Mostly cloudy and a bit cooler with rain Tuesday, a good (50%) chance of evening rain, partly cloudy with a good (50%) chance of snow Tuesday night (snow level 1,000 ft.),
  • A (30%) chance of AM snow, then a mix of clouds and sun with a (40%) chance of rain Wednesday afternoon (snow level 1,000 ft.).
  • highs 52-43 lows 37-27. (seasonal averages high 51 low 35)

Forecast for the Umpqua Valley including Roseburg:

  • Mostly cloudy this evening, becoming partly cloudy late tonight,
  • Partly cloudy with rain and warmer Thursday afternoon, rain Thursday night (0.10 in. of rain possible, snow level 3,500 late at night),
  • Mostly cloudy with AM rain, cooler with a good (50%) chance of rain Friday afternoon, mostly cloudy with a (30%) chance of rain and snow at night,
  • Mostly cloudy start, partly cloudy and a bit cooler Saturday afternoon, then partly cloudy Saturday night.
  • lows 37-42 cooling to 33 Saturday night highs 62-48.
  • Partly cloudy and a bit warmer Sunday, mostly cloudy with a slight (20%) chance of rain late Sunday night,
  • Mostly cloudy and a bit cooler with a (30%) chance of rain Monday, rain and snow likely (70%) Monday night (evening snow possibly heavy at times),
  • Mostly cloudy with AM rain and snow, rain and snow likely (70%) and a bit cooler Tuesday, a good (50%) chance of rain Tuesday night,
  • Then partly cloudy and a bit warmer with a (30%) chance of rain Wednesday.
  • highs 54-43 warming to 45 Wednesday lows 36-29. (seasonal averages high 53 low 37)

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

  • Mostly cloudy this evening, partly cloudy late tonight,
  • Partly cloudy with a slight (20%) chance of rain and warmer Thursday afternoon, rain Thursday night (0.25 in. of rain possible),
  • Mostly cloudy with AM rain, a bit cooler with coastal rain likely (70%) Friday afternoon while a good (50%) chance of inland rain Friday afternoon, mostly cloudy with a good (50%) chance of rain at night,
  • Then partly cloudy Saturday and Saturday night.
  • lows 36-42 cooling to 34 Saturday night highs 59-52.
  • Partly cloudy and a bit warmer Sunday, mostly cloudy with a slight (20%) chance of rain late Sunday night,
  • Mostly cloudy and a bit cooler with a (30%) chance of rain Monday, rain becoming likely (70%) at night,
  • Mostly cloudy  with AM rain and snow, a bit cooler with rain and snow likely (70%) Tuesday afternoon, a good (50%) chance of rain and snow Tuesday night,
  • Then partly cloudy with a (30%) chance of rain Wednesday.
  • highs 55-48 lows 39-30. (seasonal averages high 54 low 41)

Forecast for the Northern Oregon Cascades including Willamette Pass:

  • Partly cloudy tonight,
  • Some AM clouds, mostly sunny and warmer with a (40%) chance of rain Thursday afternoon, partly cloudy with a good (50%) chance of evening rain and snow, mostly cloudy with snow and rain likely (70%) late Thursday night (0.10 in. of rain possible, 1 in,. of snow possible),
  • Mostly cloudy with snow and rain and colder Friday, a (40%) chance of evening snow and rain, a slight (20%) chance of rain and snow late at night,
  • Partly cloudy with a slight (20%) chance of AM snow, just partly cloudy Saturday afternoon, then partly cloudy Saturday night.
  • free air freezing level 6,500 ft. rising to 7,500 ft. late tonight, snow level 6,000 ft. Thursday, 4,000 ft. Thursday night, 3,500 ft. Friday, 3000 ft. late Friday night and Saturday, then free air freezing level 3,500 ft. Saturday night.
  • lows 25-28 cooling to 22 Friday night and Saturday night highs 45-34.
  • Partly cloudy and warmer Sunday, partly cloudy in the evening, mostly cloudy with a slight (20%) chance of rain Sunday night,
  • A mix  of clouds and sun and a bit cooler with a good (50%) chance of rain and snow Monday, evening rain and snow likely (70%), snow likely (70%) late Monday night,
  • Mostly cloudy with snow and cooler Tuesday, evening snow likely (70%), a (40%) chance of snow late Tuesday night,
  • Then a mix of clouds and sun and a bit warmer with a (40%) chance of snow Wednesday.
  • free air freezing level 7,500 ft. Sunday, snow level 5,500 ft. Sunday night, 4,500 ft. Monday, 3,000 ft. Monday night, 2,000 ft. Tuesday, then at the surface Tuesday night and Wednesday.
  • highs 43-25 warming to 30 Wednesday lows 29-14.

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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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10/31 Showers with patchy fog overnight.

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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.