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Tim Chuey Weather

by | Apr 17, 2024 | Weather

April 17, 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 FREEZE WARNING IS IN EFFECT FROM 2 AM UNTIL 9 AM THURSDAY FOR THE LOWER COLUMBIA BASIN OF OREGON AND THE FOOTHILLS OF THE NORTHERN BLUE MOUNTAINS OF OREGON.
  • A FLOOD WARNING IS IN EFFECT UNTIL EARLY FRIDAY AFTERNOON FOR THE OWYHEE RIVER BELOW THE OWYHEE DAM AFFECTING MALHEUR COUNTY.

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  brings the Pacific Northwest a lot more sunshine.  The graphics for days 1-3  show no frontal systems approaching Oregon with little or no effect on our weather. The graphics for days 3-7  Saturday through Wednesday show a frontal system offshore next Saturday moving across the Pacific Northwest between Saturday afternoon and next Sunday.  A complex frontal system will be offshore Monday then moving in next Tuesday with another front right behind it.

Forecast For The South Willamette Valley Including Eugene-Springfield:

  • Clear with areas of frost tonight,
  • Areas of AM frost, sunny and a bit warmer Thursday afternoon, mostly clear in the evening, partly cloudy late Thursday night,
  • Sunny and a bit warmer Friday, mostly clear in the evening, partly cloudy late at night,
  • Mostly sunny with a good (50%) chance of AM showers, a mix of clouds and sun and a bit cooler with a good (50%) chance of rain Saturday afternoon, mostly cloudy with a good (50%) chance of evening showers, then partly cloudy with a good (50%) chance of showers late Saturday night.
  • lows 35-45 cooling to 42 Saturday night highs 69-73 cooling to 65 Saturday.
  • Mostly sunny and a bit cooler with a slight (20%) chance of showers Sunday, partly cloudy Sunday night,
  • A mix of clouds and sun and a bit warmer Monday, mostly cloudy at night,
  • A mix of clouds and sun with a slight (20%) chance of showers Tuesday, mostly cloudy with a (30%) chance of showers Tuesday night,
  • Then a mix of clouds and sun with a (40%) chance of showers Wednesday.
  • highs 62-66 cooling to 64 Tuesday lows 39-45. (seasonal averages high 62 low 40)

Forecast for the Umpqua Valley including Roseburg:

  • Mostly clear tonight,
  • Sunny and a bit warmer Thursday, clear in the evening, partly cloudy late Thursday night,
  • Sunny and a bit warmer Friday, mostly clear in the evening, partly cloudy late at night,
  • Sunny start, becoming mostly cloudy and cooler with a slight (20%) chance of rain Saturday afternoon, then mostly cloudy with a slight (20%) chance of rain Saturday night.
  • lows 39-48 cooling to 42 Saturday night highs 72-77 cooling to 67 Saturday.
  • Partly cloudy and a bit cooler Sunday, partly cloudy Sunday night,
  • Partly cloudy and a bit warmer Monday, mostly cloudy at night,
  • Partly cloudy with a slight (20%) chance of AM rain, partly cloudy and a bit cooler with a slight (20%) chance of rain Tuesday afternoon, mostly cloudy with a (20%) chance of rain Tuesday night,
  • Then mostly cloudy and a bit cooler with a (30%) chance of rain Wednesday.
  • highs 64-70 cooling to 66 Wednesday lows 42-46. (seasonal averages high 63 low 42)

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

  • Mostly clear tonight,
  • Sunny and a bit warmer Thursday, partly cloudy Thursday night,
  • Sunny Friday, partly cloudy with a  slight (20%) chance of rain late at night,
  • Partly cloudy with a (30%) chance of AM rain, mostly cloudy and a bit cooler with a good (50%) chance of rain Saturday afternoon, then mostly cloudy with a slight (20%) chance of rain Saturday night.
  • lows 40-46 cooling to 42 Saturday night highs 65-59.
  • Partly cloudy and a bit cooler Sunday, mostly cloudy Sunday night,
  • Mostly cloudy and a bit warmer Monday, a slight (20%) chance of rain at night,
  • Mostly cloudy with a slight (20%) chance of AM rain, partly cloudy and a bit warmer with a slight (20%) chance of rain Tuesday afternoon, mostly cloudy with a (30%) chance of rain Tuesday night,
  • Then mostly cloudy with a (30%) chance of rain Wednesday.
  • highs 58-60 cooling back to 58 Tuesday lows 42-44. (seasonal average high 57 low 44)

Forecast for the Northern Oregon Cascades including Willamette Pass:

  • Clear tonight,
  • Sunny and a bit warmer Thursday, mostly clear Thursday night,
  • Sunny and a bit warmer Friday, mostly clear in the evening, partly cloudy late Friday night,
  • Mostly sunny with a good (50%) chance of AM showers, a mix of clouds and sun and a bit cooler with a slight (20%) chance of showers Saturday afternoon, mostly cloudy with a good (50%) chance of rain and snow showers Saturday night,
  • free air freezing level 3,500 ft. late tonight, 4,000 ft. rising to 5,500 ft. Thursday afternoon, 6,500 ft. falling to 5,500 ft. late Thursday night, 5,500 ft. rising to 6,500 ft. Friday afternoon, 7,500 ft. falling to 7,000 ft. late Friday night, snow level 6,500 ft. Saturday, then 5,000 ft. Saturday night.
  • lows 28-37 cooling back to 28 Saturday night highs 56-60 cooling to 55 Saturday.
  • Mostly sunny and a bit cooler with a slight (20%) chance of rain and snow showers Sunday, partly cloudy Sunday night,
  • Mostly sunny and warmer Monday, partly cloudy at night,
  • A mix of clouds and sun and a bit cooler with a (40%) chance of rain and snow showers Tuesday, a good (50%) chance of rain and snow showers Tuesday night.
  • Then a mix of clouds and sun and a bit cooler with a good (50%) chance of rain and snow showers Wednesday.
  • snow level 4,500 ft. Sunday, free air freezing level 6,500 ft. Sunday, free air freezing level 6,500 ft. Sunday night and Monday, 7,000 ft. Monday night, then snow level 6,000 ft. Tuesday through Wednesday.
  • highs 50-60 cooling back to 50 Wednesday lows 32-35.