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March 15, 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 BEACH HAZARDS STATEMENT IS IN EFFECT FOR DANGEROUS SNEAKER WAVES THROUGH SATURDAY EVENING FOR THE CLATSOP COUNTY COAST AND THE TILLAMOOK COUNTY COAST.
  • A BEACH HAZARDS STATEMENT IS IN EFFECT FOR DANGEROUS SNEAKER WAVES THROUGH SATURDAY EVENING FOR THE SOUTH CENTRAL OREGON COAST AND THE CURRY COUNTY COAST.

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 Upper Level High Pressure Ridge (“Arch” shape) is strengthening and will taking over with warmer and dry weather.  The graphics for days 1-3  show no frontal systems approaching the Pacific Coast. The graphics for days 3-7    Monday through Friday show the frontal system that be offshore then moving through the Pacific Northwest next Wednesday.

Note: The Vernal Equinox takes place next Tuesday March 19th at 8:06 pm to begin the season of Spring.

Forecast For The South Willamette Valley Including Eugene-Springfield:

  • Clear tonight,
  • Sunny and a bit warmer Saturday, clear Saturday night,
  • Mostly sunny and a bit cooler Sunday afternoon, mostly clear at night,
  • Some AM clouds, mostly sunny Monday afternoon, then mostly clear Monday night.
  • lows 36-45 highs 73-72.
  • Partly cloudy and a bit cooler Tuesday, partly cloudy with a slight (20%) chance of rain Tuesday night (Vernal Equinox 8:06 pm, Spring Begins),
  • A mix of clouds and sun and a bit cooler with a (30%) chance of rain Wednesday, partly cloudy with a slight (20%) chance of evening rain,  mostly cloudy with a slight (20%) of rain Wednesday night,
  • A mix of clouds and sun and a bit cooler with with a (40%) chance of rain Thursday, a (40%) chance of showers Thursday night,
  • Then mostly cloudy and a bit cooler with showers likely (70%) Friday.
  • highs 66-54 lows 44-42. (seasonal averages high 57 low 37)

Forecast for the Umpqua Valley including Roseburg:

  • Clear with areas of dense evening fog,  widespread fog late tonight,
  • Areas of dense AM fog, sunny and a bit warmer Saturday, clear Saturday night,
  • Sunny and a bit cooler Sunday, clear at night,
  • Mostly sunny and a bit warmer Monday, then mostly clear Monday night.
  • lows 40-47 highs 72-75.
  • AM clouds, sunny and a bit cooler Tuesday afternoon, partly cloudy in the evening, mostly cloudy with a slight (20%) chance of showers late Tuesday night (Vernal Equinox 8:06 pm, Spring Begins),
  • Mostly cloudy and a bit cooler with a (30%) chance of showers Wednesday, a (30%) chance of showers at night,
  • Mostly cloudy and a bit cooler with a (40%) chance of showers Thursday, a (40%) chance of showers Thursday night,
  • A good (50%) chance of AM showers, then showers likely (70%) Friday afternoon.
  • highs 72-56 lows 46-42. (seasonal average high 59 low 40)

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

  • Clear tonight,
  • Sunny and a bit cooler Saturday, clear with patchy coastal fog late Saturday night,
  • Mostly sunny and a bit cooler Sunday, mostly clear at night,
  • Some AM clouds, sunny Monday afternoon, mostly clear in the evening, then mostly cloudy Monday night.
  • lows 46-43 warming to 45 Monday night highs 68-65.
  • Mostly cloudy start, partly cloudy and a bit cooler Tuesday afternoon, a slight (20% ) chance of showers Tuesday night (Vernal Equinox 8:06 pm, Spring Begins),
  • Mostly cloudy and a bit cooler with a (30%) chance of showers Wednesday, mostly cloudy with a (30%) chance of showers at night,
  • Mostly cloudy and a bit cooler with a (40%) chance of showers Thursday, a (40%) of showers Thursday night,
  • Mostly cloudy with a (40%) chance of AM showers, then mostly cloudy with showers likely (70%) Friday afternoon.
  • highs 60-55 lows 44-42. (seasonal average high 55 low 42)

Forecast for the Northern Oregon Cascades including Willamette Pass:

  • Clear tonight,
  • Sunny and a bit cooler Saturday, clear Saturday night,
  • Mostly sunny and a bit warmer Sunday, clear at night,
  • Mostly sunny and a bit warmer Monday, then mostly clear Monday night.
  • free air freezing level 11,000 ft. tonight. 10,000 ft. rising to 11,000 ft. Saturday, 11,000 ft. Saturday night, then 11,000 ft. Sunday through Monday night,
  • lows 29-35 highs 52-59.
  • Mostly sunny and a bit cooler with a slight (20%) chance of rain Tuesday, partly cloudy with a (20%) chance of rain and snow Tuesday night (Vernal Equinox 8:06 pm, Spring Begins),
  • A mix of clouds and sun with a (40%) chance of rain and snow and cooler Wednesday, partly cloudy with a (40%) chance of evening rain and snow,  a (50%) chance of rain and snow at night,
  • A mix of clouds and sun and a bit cooler with a good (50%) chance of rain and snow Thursday, mostly cloudy with rain and snow showers likely (70%) Thursday night.
  • Then mostly cloudy and a bit cooler with rain and snow showers likely (70%) Friday,
  •  snow level 7,000 ft. Tuesday and Tuesday night, 5,500 ft. Wednesday, 4,500 ft. Wednesday night, 4,000 ft. Thursday, 4,500 ft. Thursday night, then 4,000 ft. Friday.
  • highs 57-39 lows 33-28.