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Tim Chuey Weather

by | Mar 20, 2024 | Weather

March 21, 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 frontal systems that is on the way to the Pacific Northwest Friday. The graphics for days 3-7    Sunday through Thursday show the frontal system that pushes through the Pacific Northwest Wednesday and next Thursday.

Forecast For The South Willamette Valley Including Eugene-Springfield:

  • A mix of clouds and sun with a (40%) chance of rain and a bit warmer this afternoon, a good (50%) chance of evening rain, rain likely (70%) late tonight (under 0.10 in. of rain possible),
  • Mostly cloudy and a bit cooler with rain Friday (0.25 in. of rain  possible), showers at night (0.25 in. of rain  possible),
  • Mostly cloudy and a bit cooler with showers Saturday, then showers likely (70%) Saturday night.
  • highs 62-54 lows 46-42.
  • 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:

  • Mostly cloudy and a bit warmer with a slight (20%) chance of showers this afternoon, a (30%) chance of showers tonight,
  • Mostly cloudy with AM rain likely (70%), showers and a bit cooler with a slight (20%) chance of thunderstorms Friday afternoon (0.25 in. of rain  possible), evening rain with a slight (20%) chance of thunderstorms, rain likely (70%) late at night (0.10 in. of rain possible, 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.
  • highs 66-55 lows 46-43.
  • 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 and a bit warmer with a (30%) chance of showers today, a good (50%) chance of showers tonight (under 0.10 in. of rain possible),
  • 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 (0.25 in. of rain  possible), evening coastal rain with coastal rain and a slight (20%) chance of thunderstorms late at night while mostly cloudy with inland rain at night (0.25 in. of rain possible),
  • 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.
  • highs 62-64 lows 46-43.
  • 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:

  • Clouds and sun with a slight (20%) of AM showers, a slight (20%) chance of rain and a bit warmer this afternoon and evening, a good (50%) chance of rain late tonight,
  • 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. today, 6,000 ft. tonight, 5,500 ft. Friday, 5,500 ft. falling to 4,500 ft. Friday afternoon, 3,500 ft. Saturday, then 4,000 ft. Saturday night.
  • highs 48-38 lows 35-29.
  • 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.