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Tim Chuey Weather

by | Mar 20, 2024 | Weather

March 20, 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) starts migrating away from us. The graphics for days 1-3  show the weak frontal systems that are on the way to the Pacific Northwest. The graphics for days 3-7    Saturday through Wednesday show the frontal system that pushes through the Pacific Northwest Saturday, then Monday and next Wednesday.

Forecast For The South Willamette Valley Including Eugene-Springfield:

  • Mostly cloudy with  a (40%) chance of evening rain, a slight (20%) chance of showers late tonight (under 0.10 in. of rain possible),
  • A mix of clouds and sun with a (40%) chance of rain and a bit warmer Thursday afternoon, a good (50%) chance of evening rain, rain likely (70%) late Thursday night (under 0.10 in. of rain possible),
  • Mostly cloudy and a bit cooler with rain Friday, showers at night,
  • Mostly cloudy and a bit cooler with showers Saturday, then showers likely (70%) Saturday night.
  • lows 44-46 cooling to 42 Friday night and Saturday night highs 62-54.
  • Mostly cloudy and a bit warmer with showers likely (70%) Sunday, rain likely (70%) Sunday night,
  • Mostly cloudy with rain and a bit cooler Monday, showers at night,
  • Mostly cloudy and a bit warmer with showers Tuesday, showers Tuesday night,
  • Then mostly cloudy with showers Wednesday.
  • highs 55-53 warming back to 55 Wednesday lows near 42. (seasonal averages high 57 low 38)

Forecast for the Umpqua Valley including Roseburg:

  • Becoming mostly cloudy with a slight (20%) chance of showers tonight,
  • Mostly cloudy and a bit warmer with a slight (20%) chance of showers Thursday afternoon, a (30%) chance of showers Thursday night,
  • Mostly cloudy with AM rain likely (70%), showers and a bit cooler with a slight (20%) chance of thunderstorms Friday afternoon, evening rain with a slight (20%) chance of thunderstorms, rain likely (70%) late at night (snow level 3,500 ft.),
  • Mostly cloudy with showers and a bit cooler Saturday, evening showers with a slight (20%) chance of thunderstorms, then showers likely (70%) late Saturday night.
  • lows 46-43 highs 66-55.
  • Mostly cloudy with showers likely (70%) Sunday afternoon, a good (50%) chance of evening showers, rain likely (70%) late Sunday night,
  • Then mostly cloudy with rain Monday through Wednesday.
  • highs near 55 lows near 43. (seasonal average high 59 low 40)

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

  • Mostly cloudy with a slight (20%) chance of coastal showers tonight while a slight (20%) chance of inland showers late tonight,
  • Mostly cloudy and a bit warmer with a (30%) chance of showers Thursday, a good (50%) chance of showers Thursday night,
  • Mostly cloudy with AM coastal rain and a slight (20%) chance of thunderstorms while AM inland rain, a bit cooler with showers and a slight (20%) chance of thunderstorms Friday afternoon, evening coastal rain with coastal rain and a slight (20%) chance of thunderstorms late at night while mostly cloudy with inland rain at night,
  • Mostly cloudy and a bit cooler with showers and a slight (20%) chance of thunderstorms Saturday and in the evening, then showers likely (70%) late Saturday night.
  • lows 46-43 highs 62-64.
  • Mostly cloudy with showers likely (70%) Sunday, a good (50%) chance of evening showers, rain likely (70%) Sunday night,
  • Then mostly cloudy with rain Monday through Wednesday.
  • highs near 55 lows near 43. (seasonal average high 55 low 42)

Forecast for the Northern Oregon Cascades including Willamette Pass:

  • Mostly cloudy a good (50%) chance of evening rain, a good (50%) chance of rain and snow showers late tonight (0.10 in. of rain possible, a trace of ice accumulation possible),
  • Clouds and sun with a slight (20%) of AM showers, a slight (20%) chance of rain and a bit warmer Thursday afternoon and evening, a good (50%) chance of rain late Thursday night,
  • Mostly cloudy with a good (50%) chance of AM rain, rain and a bit cooler Friday afternoon, then showers and snow showers with a slight (20%) chance of thunderstorms at night,
  • Mostly cloudy with rain and snow showers and a bit cooler Saturday, then snow showers with rain showers likely (70%) Saturday night.
  • snow level 5,000 ft. tonight and Thursday, 6,000 ft. Thursday night, 5,500 ft. Friday, 5,500 ft. falling to 4,500 ft. Friday afternoon, 3,500 ft. Saturday, then 4,000 ft. Saturday night.
  • lows 32-35 cooling to 29 Friday night and Saturday night highs 48-38.
  • Mostly cloudy and a bit cooler with snow and rain showers Sunday, snow with rain likely (70%) Sunday night,
  • Mostly cloudy with rain showers and snow Monday (snow possibly heavy at times), snow and rain showers at night,
  • Then mostly cloudy with snow and rain showers Tuesday through Wednesday.
  • snow level 3,500 ft. Sunday through Monday, then 4,000 ft. Monday night through Wednesday.
  • highs near 36 lows near 28.