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April 6, 2023

ADVISORIES

  • A WIND ADVISORY IS IN EFFECT FROM 5 PM TODAY UNTIL 8 AM FRIDAY FOR THE FOOTHILLS OF 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 Low Pressure Trough (“U” shape) continues to send moisture to the Pacific Northwest. The graphics for days 1-3 show a warm front just offshore Wednesday and its associated cold front will be offshore Friday then it will move in. The graphics for days 3-7  Saturday through Wednesday show the series of complex frontal systems that will slide into the Pacific Northwest through the period.

Forecast For The South Willamette Valley Including Eugene-Springfield

  • Mostly cloudy with rain and a bit warmer today (0.25 in. of rain possible), rain tonight (0.50 in. of rain possible),
  • Mostly cloudy with a good (50%) chance of AM rain, a good (50%) chance of showers and a bit warmer Friday afternoon (under 0.10 in. of rain possible), a slight (20%) of evening showers, partly cloudy with a (40%) chance of showers late at night,
  • Mostly cloudy with a good (50%) chance of showers and a bit warmer Saturday, then a good (50%) chance of rain Saturday night.
  • highs 57-59 lows 45-40 warming to 46 Saturday night.
  • Mostly cloudy with rain Sunday (Easter), rain Sunday night,
  • Mostly cloudy and a bit cooler with rain Monday and at night,
  • Mostly cloudy and a bit cooler with rain Tuesday, evening rain likely (70%), a good (50%) chance of rain late Tuesday night,
  • Then a mix of clouds and sun with a good (50%) chance of rain Wednesday.
  • highs 59-50 lows 44-35. (seasonal averages high 59 low 39)

Forecast for the Umpqua Valley including Roseburg:

  • Mostly cloudy with rain and a bit warmer today (under 0.10 in. of rain possible), rain tonight,
  • Mostly cloudy with a good (50%) chance of showers Friday (0.10 in. of rain possible, snow level 3,500 ft.), a slight (20%) chance of showers late at night (under 0.10 in. of rain possible),
  • Mostly cloudy and a bit warmer with a (30%) chance of showers Saturday, then a (30%) chance of showers Saturday night.
  • highs 60-64 lows 47-43 warming back to 47 Saturday night.
  • Mostly cloudy with a good (50%) chance of AM showers, rain likely (70%) Sunday afternoon (Easter), rain Sunday night,
  • Mostly cloudy with AM rain, a bit cooler with showers likely (70%) Monday afternoon and evening, rain and snow showers likely (70%) and colder late Monday night,
  • Mostly cloudy with AM rain and snow showers likely (70%), showers likely (70%) and a bit cooler Tuesday afternoon, evening rain and snow showers likely (70%), a good (50%) chance of rain and snow showers late Tuesday night,
  • Then mostly cloudy with a (40%) of rain and snow showers Wednesday.
  • highs 64-52 lows 45-36. (seasonal averages high 61 low 41)

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

  • Mostly cloudy with AM showers, rain and a bit warmer this afternoon (0.10 in. of rain possible) and breezy (Wind: S 15-25 mph gusts to 40 mph this afternoon), rain tonight (0.25 in. of rain possible) and breezy (Wind: S 15-25 mph gusts to 40 mph decreasing and shifting to SW 10-15 mph late tonight),
  • Mostly cloudy with a (40%) chance of AM showers, a slight (20%)chance of showers and a bit warmer Friday afternoon (under 0.10 in. of rain possible),, a slight (20%) chance of showers late at night,
  • Mostly cloudy with a (30%) chance of showers, breezy and a bit warmer Saturday, then a (40%) chance of shower Saturday night.
  • highs 56-44 warming to 57 Saturday lows 42-40 warming to 46 Saturday night.
  • Mostly cloudy with AM showers likely (70%), rain and breezy and a bit warmer with Sunday afternoon (Easter), evening rain, rain likely (70%) late Sunday night,
  • Mostly cloudy with AM rain likely (70%), showers likely (70%)  and a bit cooler Monday afternoon, a good (50%) chance of evening showers, showers likely (70%) late Monday night,
  • Mostly cloudy and a bit cooler with showers likely (70%) Tuesday and in the evening, a good (50%) chance of rain and snow showers late Tuesday night,
  • Mostly cloudy with a (40%) chance of AM rain and snow showers, then a (40%) chance of showers Wednesday afternoon.
  • highs 58-50 lows 42-35. (seasonal averages high 56 low 43)

Forecast for the Northern Oregon Cascades including Willamette Pass:

  • Mostly cloudy with AM rain and snow, rain likely (70%) and a bit warmer this afternoon and evening (0.25 in. of rain possible, 1 in. of snow possible), snow late tonight (0.50 in. of rain possible, 2 in. of snow possible),
  • Mostly cloudy with AM rain and snow, a bit cooler with a good (50%) chance of rain and snow showers Friday afternoon, mostly cloudy with a slight (20%) chance of evening rain and snow showers, partly cloudy with a slight (20%) chance of rain and snow showers late at night,
  • Mostly cloudy with a slight (20%) chance of AM snow showers, a mix of clouds and sun and a bit warmer with a good (50%) chance of rain Saturday afternoon, evening rain likely (70%), then partly cloudy with a good (50%) chance of showers late Saturday night.
  • snow level 5,000 ft. today, 6,000 ft. falling to 5,000 ft. late tonight, 4,000 ft. Friday, 4,500 ft. Friday night, 5,500 ft. Saturday, then 6,000 ft. Saturday night.
  • highs 42-45 lows 32-28 warming back to 32 Saturday night.
  • Mostly cloudy with rain and a bit warmer Sunday (Easter), rain Sunday night,
  • Mostly cloudy and a bit cooler with rain and snow Monday, evening rain, snow likely (70%) at night,
  • Mostly cloudy with AM snow likely (70%), snow and rain and a bit cooler Tuesday afternoon, snow Tuesday night,
  • Then mostly cloudy and a bit cooler with snow likely (70%) Wednesday.
  • snow level  7,500 ft. Sunday, 6,500 ft. Sunday night, 4,500 ft. Monday, 3,000 ft. Monday night, 2,500 ft. Tuesday, then 2,000 ft. Tuesday night and Wednesday.
  • highs 48-32 lows 33-22.