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February 5, 2024

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 UNTIL 7 AM TODAY FOR JACKSON COUNTY.
  • A WIND ADVISORY IS IN EFFECT UNTIL 4 PM THIS AFTERNOON FOR THE FOOTHILLS OF THE NORTHERN BLUE MOUNTAINS OF OREGON.

HEALTH ADVISORIES

  • A PERMANENT HEALTH ADVISORY REMAINS IN EFFECT FOR THE SOUTH UMPQUA RIVER BAR. POOLS IN THE BEDROCK ALONG THE RIVERS EDGE ARE KNOWN TO DEVELOP BLUE-GREEN ALGAE (CYANOBACTERIAL) BLOOMS THAT CAN BE HARMFUL TO PETS AND PEOPLE IF ACCIDENTAL INGESTION OCCURS. SIGNS HAVE BEEN POSTED ALONG SEVERAL ACCESS AREAS ALONG THE  RIVER.

THE WEATHER PATTERN

An Atmospheric River has been pumping a lot of moisture into California, but luckily not as much into Oregon  The graphics for days 1-3  show the complex frontal system moving through Oregon Monday. The graphics for days 3-7   Thursday through Monday show complex frontal systems  approaching the Pacific Northwest the pushing through Friday and next Sunday and Monday.

Forecast For The South Willamette Valley Including Eugene-Springfield:

  • Patchy AM fog and late night fog, mostly cloudy with rain today (0.25 in. of rain possible), a good (50%) chance of evening rain, a good (50%) chance of showers late tonight (under o.10 in. of rain possible),
  • Patchy AM fog, mostly cloudy with a (40%) chance of AM showers, a slight (20%) chance of showers and a bit warmer Tuesday afternoon (under o.10 in. of rain possible), mostly cloudy with a good (50%) chance of rain late at night,
  • Mostly cloudy with a good (50%) chance of rain and a bit cooler Wednesday, then a good (50%) chance of rain Wednesday night.
  • highs 48-50 cooling to 47 Sunday lows 40-36.
  • Mostly cloudy with a good (50%) chance of AM rain, a bit cooler with a good (50%) chance of showers Thursday afternoon, a good (50%) chance of showers Thursday night,
  • Mostly cloudy with a good (50%) chance of showers and a bit warmer Friday, a good (50%) chance of showers at night,
  • Mostly cloudy and a bit warmer with showers likely (70%) Saturday and in the evening, a good (50%) chance of showers late Saturday night,
  • Then mostly cloudy and a bit warmer with a good (50%) chance of showers Sunday.
  • highs 40-35 lows 33-39. (seasonal averages high 50 low 35)

Forecast for the Umpqua Valley including Roseburg:

  • Mostly cloudy with rain likely (70%) and warmer today (0.25 in. of rain possible, snow level 3,500 ft.), a (40%) chance of evening rain, a (40%) chance of showers late tonight (under 0.10 in. of rain possible),
  • Mostly cloudy with a (30%) chance of AM rain and snow showers, a (30%) chance of showers Tuesday afternoon (under o.10 in. of rain possible), a (30%) chance of rain and snow showers at night (under 0.10 in. of rain possible, snow level 3,500 ft.),
  • Then mostly cloudy and a bit cooler with a good (50%) chance of rain and snow showers Wednesday, a (40%) chance of rain and snow showers Wednesday night.
  • highs 50-47 lows 42-37.
  • Mostly cloudy with a good (50%) chance of rain and snow showers and a bit warmer Thursday, a good (50%) chance of rain and snow showers Thursday night,
  • Mostly cloudy with a good (50%) chance of rain and snow showers Friday, a (40%) chance of showers at night,
  • Mostly cloudy and a bit warmer with showers likely (70%) Saturday, a good (50%) chance of showers Saturday night,
  • Then mostly cloudy and a bit warmer with a (30%) chance of showers Sunday.
  • highs 48-54 lows 36-42 (seasonal averages high 52  low 37).

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

  • Mostly cloudy and slightly warmer with coastal rain likely (70%) today while inland AM rain and inland rain likely (70%) and slightly warmer this afternoon (0.25 in. of rain possible), a (30%) chance of evening rain, a (30%) chance of rain late tonight (under 0.10 in. of rain possible),
  • Mostly cloudy with a (30%) chance of showers Tuesday (under o.10 in. of rain possible) and at night,
  • Mostly cloudy with a (40%) chance of showers Wednesday, then a (40%) chance of rain late Wednesday night.
  • highs near 52 lows 42-39.
  • Mostly cloudy with a good (50%) chance of AM showers, showers likely (70%) Thursday afternoon, a good (50%) chance of showers Thursday night,
  • Mostly cloudy and a bit warmer with a (40%) chance of showers Friday, showers likely (70%) at night,
  • Mostly cloudy and a bit warmer with showers likely (70%) Saturday, a good (50%) chance of showers Saturday night,
  • Then mostly cloudy and a bit warmer with a (30%) chance of showers Sunday.
  • highs near 52-57 lows 39-44. (seasonal averages high 54 low 41)

Forecast for the Northern Oregon Cascades including Willamette Pass:

  • Mostly cloudy and a bit warmer with rain and snow today (0.25 in. of rain possible, 1 in. of snow possible), evening rain and snow likely (70%), a good (50%) chance of rain and snow showers late tonight (0.10 in. of rain possible, 1 in. of snow possible),
  • A mix of clouds and sun with a good (50%) chance of snow and rain showers and a bit cooler Tuesday, mostly cloudy with a good (50%) chance of evening snow and rain showers, snow and rain likely (70%) at night,
  • Mostly cloudy with snow and rain likely (70%) and  a bit cooler Wednesday, a good (50%) chance of evening snow and rain, then a good (50%) chance of snow Wednesday night.
  • snow level 4,500 ft. today, 4,000 ft. tonight, 3,500 ft. Tuesday, 3,000 ft. Tuesday night, then 2,500 ft. Wednesday and Wednesday night.
  • highs 37-32 lows 25-22.
  • Mostly cloudy with rain showers and snow showers likely (70%) Thursday, snow and rain showers likely (70%) Thursday night,
  • Mostly cloudy with snow showers likely (70%) and a good (50%) chance of showers Friday, a good (50%) chance of rain and snow showers at night,
  • Mostly cloudy and a bit warmer with rain and snow showers likely (70%) Saturday, evening rain and snow showers likely (70%), a good (50%) chance of rain and snow showers Saturday night,
  • Then a mix of clouds and sun and a bit warmer with a good (50%) chance of rain and snow showers Sunday.
  •  snow level 2,500 ft. Thursday, 3,000 ft. Thursday night, 2,500 ft. Friday, 3,500 ft. Friday night, 4,000 ft. Saturday, then 4,500 ft. Saturday night and Sunday.
  • highs 32-38 lows 20-27.