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March 14, 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

  • NONE AT THIS TIME.

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    Sunday through Thursday show the frontal system that be offshore Monday and Tuesday.

Forecast For The South Willamette Valley Including Eugene-Springfield:

  • Widespread AM frost, mostly sunny and warmer this afternoon, mostly clear tonight,
  • Mostly sunny and warmer Friday, clear at night,
  • Mostly sunny and a bit warmer Saturday, then clear Saturday night.
  • highs 58-73 lows 35-42.
  • Mostly sunny and a bit cooler Sunday afternoon, mostly clear Sunday night,
  • Some AM clouds, mostly sunny and a bit cooler Monday afternoon, partly cloudy at night,
  • Partly cloudy and a bit cooler Tuesday, a slight (20%) chance of evening rain, mostly cloudy with a slight (20%) chance of rain late Tuesday night,
  • Then mostly cloudy and a bit cooler with a (30%) chance of rain Wednesday.
  • highs 72-57 lows 43-45 cooling to 42 Monday night. (seasonal averages high 57 low 37)

Forecast for the Umpqua Valley including Roseburg:

  • Sunny and a bit warmer today and Friday, clear both nights,
  • Sunny Saturday, then clear Saturday night.
  • highs 62-70 lows 37-43.
  • Sunny Sunday, mostly clear Sunday night,
  • Mostly sunny and a bit warmer Monday, mostly clear in the evening, partly cloudy late at night,
  • Mostly cloudy start, partly cloudy with a slight (20%) chance of showers and a bit cooler Tuesday afternoon, partly cloudy with a slight (20%) chance of evening showers, mostly cloudy with a slight (20%) chance of showers Tuesday night,
  • Then mostly cloudy with a slight (20%) chance of rain Wednesday.
  • highs 70-72 cooling to 62 Wednesday lows 45-47 cooling back to 45 Tuesday night. (seasonal average high 59 low 40)

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

  • Sunny and a bit warmer today and Friday, clear both nights,
  • Sunny and a bit cooler Saturday, then mostly clear Saturday night.
  • highs 62-69 cooling to 66 Saturday lows 42-44.
  • Mostly sunny and a bit cooler Sunday, mostly clear Sunday night,
  • Some AM clouds, sunny and a bit cooler Monday afternoon, partly cloudy in the evening, mostly cloudy at night,
  • Mostly cloudy start, partly cloudy and a bit cooler with a slight (20%) chance of showers Tuesday afternoon, mostly cloudy with a slight (20%) chance of showers Tuesday night,
  • Then mostly cloudy and a bit cooler with a slight (20%) chance of showers Wednesday.
  • highs 63-57 lows 45-43. (seasonal average high 55 low 42)

Forecast for the Northern Oregon Cascades including Willamette Pass:

  • Mostly sunny and warmer today, clear tonight,
  • Mostly sunny and a bit warmer Friday, mostly clear at night,
  • Sunny and a bit warmer Saturday, then clear Saturday night.
  • free air freezing level 5,000 ft. rising to 9,000 ft. this afternoon, 10,000 ft. tonight, 9,000 ft. rising to 11,000 ft. Friday, then 11,000 ft. Friday night through Saturday night.
  • highs 43-56 lows 26-30.
  • Mostly sunny Sunday and Monday, clear both nights,
  • Partly cloudy with a slight (20%) chance of rain Tuesday, a good (50%) chance of rain Tuesday night,
  • A mix of clouds and sun with a good (50%) chance of rain and a bit cooler Wednesday.
  • free air freezing level 10,000 ft. Sunday, 11,000 ft. Sunday night and Monday, 10,000 ft. Monday night, snow level 7,000 ft. Tuesday, 6,500 ft. Tuesday night, then 5,000 ft. Wednesday.
  • highs 56-45 lows 32-34 cooling back to 32 Tuesday night.