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Tim Chuey Weather

by | May 3, 2024 | Weather

May 3, 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.

(NOTE: I won’t be able to publish my forecasts starting April 30th Due to shoulder surgery. I’ll resume as soon as possible.).

ADVISORIES

  • A WINTER WEATHER ADVISORY IS IN EFFECT FROM 5 AM SATURDAY UNTIL 11 AM SUNDAY ABOVE 3,500 FT FOR THE NORTHERN OREGON CASCADES, THE CASCADES OF MARION AND LINN COUNTIES, AND THE CASCADES OF LANE COUNTY.
  • A WINTER WEATHER ADVISORY IS IN EFFECT FROM 5 AM SATURDAY UNTIL 11 AM SUNDAY ABOVE 4,000 FT. FOR THE EAST SLOPES OF THE OREGON CASCADES.
  • A WINTER WEATHER ADVISORY IS IN EFFECT FROM 2 AM UNTIL 11 PM SATURDAY ABOVE 4,000 FT. FOR THE SOUTH CENTRAL OREGON CASCADES, THE SISKIYOU MOUNTAINS, AND THE SOUTHERN OREGON CASCADES.
  • A WIND ADVISORY IS IN EFFECT FROM 5 AM UNTIL 5 PM SATURDAY FOR NORTHERN AND EASTERN KLAMATH COUNTY AND WESTERN, CENTRAL, AND EASTERN LAKE COUNTY.
  • A WINTER WEATHER ADVISORY IS IN EFFECT FROM 5 PM SATURDAY UNTIL UNTIL 11 PM SUNDAY ABOVE 4,000 FT. THE OCHOCO, AND THE JOHN DAY HIGHLANDS.
  • A WIND ADVISORY IS IN EFFECT FROM 9 AM MDT UNTIL 6 PM MDT SATURDAY FOR HARNRY 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 Low Pressure Trough (“U” shape) sitting right over the Pacific Northwest. The graphics for days 1-3  show a frontal system sliding through Pacific Northwest tonight and early Saturday. The graphics for days 3-7    Tuesday through Saturday show no frontal systems moving across the Pacific Northwest through the period, but one well to our Northwest next Saturday. .

Forecast For The South Willamette Valley Including Eugene-Springfield:

  • Mostly cloudy with rain tonight (1.00 in. of rain possible),
  • Mostly cloudy with rain and a bit cooler Saturday, evening rain likely (70%), a good (50%) chance of rain Saturday night (0.10 in. of rain possible),
  • Mostly cloudy with AM rain likely (70%), showers likely (70%) and a bit warmer Sunday afternoon (under 0.10 in. of rain possible), showers at night (under 0.10 in. of rain possible),
  • Mostly sunny and a bit warmer with a good (50%) chance of showers Monday, showers likely (70%) with a slight (20%) chance of thunderstorms Monday night.
  • lows 44-42 warming to 45 Sunday night cooling to 40 Monday night highs 53-56.
  • A mix of clouds and sun with a good (50%) chance of showers and a bit warmer Tuesday, partly cloudy in the evening, mostly clear late Tuesday night,
  • Mostly cloudy sunny and a bit warmer Wednesday, mostly clear at night,
  • Sunny and a bit warmer Thursday, clear Thursday night,
  • Then sunny and a bit warmer Friday.
  • highs 58-79 lows 38-46 (seasonal averages high 66 low 42)

Forecast for the Umpqua Valley including Roseburg:

  • Mostly cloudy with rain tonight (1.00 in,. of rain possible, snow level 2,500 ft.),
  • Mostly cloudy with AM rain, snow and a slight (20%) chance of thunderstorms, showers and a slight (20%) chance of thunderstorms and much cooler Saturday afternoon (0.50 in. of rain possible, 1 in., of snow possible, snow level 2,000 ft. rising to 2,500 ft. in the afternoon), mostly cloudy with evening rain showers, snow showers likely (70%) and a slight (20%) chance of thunderstorms, a good (50%) chance of showers and snow showers late Saturday night (under 0.10 in. of rain possible, snow level 3,000 ft. falling to 2,500 ft. late at night, no snow accumulation expected),
  • Mostly cloudy with a (30%) chance of AM rain and snow showers, showers likely (70%) and a bit warmer Sunday afternoon (under 0.10 in. of rain possible, snow level 2,000 ft. rising to 3,500 ft.), a (40%) chance of evening showers, a (40%) chance of rain at night (under 0.10 in. of rain possible),
  • Mostly cloudy with AM rain, showers with a slight (20%) chance of thunderstorms and a bit warmer Monday afternoon, evening showers likely (70%) with a slight (20%) chance of thunderstorms, then a (0%) chance of showers late Monday night.
  • lows 43-40 warming to 45 Sunday night cooling to 42 Monday night highs 52-55.
  • Mostly cloudy and a bit warmer with a slight (20%) chance of showers Tuesday, partly cloudy in the evening,  mostly clear Tuesday night,
  • Mostly sunny and a bit warmer Wednesday, mostly clear at night,
  • Then sunny and a bit warmer Thursday and Friday, clear Thursday night,
  • highs 58-82 lows 40-48. (seasonal average high 69 low 46)

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

  • Mostly cloudy with rain tonight (1.00 in. of rain possible),
  • Mostly cloudy with AM coastal rain and a slight (20%) chance of thunderstorms while inland AM rain likely (70%), a good (50%) chance of showers and a slight (20%) chance of thunderstorms  Saturday afternoon (0.25 in. of rain possible), mostly cloudy with a (30%) chance of evening showers and a slight (20%) chance of thunderstorms, a (30%) chance of showers late Saturday night (under 0.10 in. of rain possible),
  • Mostly cloudy with a (40%) chance of showers Sunday afternoon (under 0.10 in. of rain possible), a slight (20%) chance of evening showers, rain likely (70%) at night (under 0.10 in. of rain possible),
  • Partly cloudy with AM rain, mostly cloudy rain with a slight (20%) chance of rain thunderstorms Monday, a (30%) chance of evening rain and a slight (20%) chance of thunderstorms, then a (40%) chance of showers late Monday night.
  • lows 42-45 cooling to 42 Monday night highs near 55.
  • Mostly cloudy with a (40%) chance of AM showers, partly cloudy and a bit warmer with a slight (20%) chance of showers Tuesday afternoon, becoming mostly clear Tuesday night,
  • Mostly sunny and a bit warmer Wednesday, mostly clear at night,
  • Mostly sunny  and a bit warmer Thursday, mostly clear Thursday night,
  • Then sunny and a bit warmer Friday.
  • highs 57-73 lows 40-49. (seasonal average high 59 low 46)

Forecast for the Northern Oregon Cascades including Willamette Pass:

  • Mostly cloudy with rain, snow late tonight (1.00 in. of rain possible, 1 in. of snow possible),
  • Mostly cloudy with snow and rain Saturday (0.50 in. of rain possible, 2-5 in. of snow possible), snow and rain Saturday night (0.50 in. of rain possible, 3-6 in. of snow possible),
  • Mostly cloudy with AM snow and rain, snow and rain showers Sunday afternoon, snow showers and rain showers at night,
  • Mostly cloudy with rain and snow showers Monday, snow showers, rain showers and a slight (20%) thunderstorms Monday night,
  • snow level 7,500 ft. falling to 6,000 ft. late tonight, 3,500 ft. Saturday, 2,500 ft. Saturday night, 2,500 ft. rising to 4,000 ft. Sunday, 4,000 ft. Sunday night and Monday, then 3,500 ft. Monday night.
  • lows 32-26 warming to 32 Sunday night cooling to 28 Monday night highs near 37.
  • Mostly cloudy with snow and rain showers likely (70%) Tuesday, a (50%) chance of rain and snow Tuesday night,
  • Mostly sunny and a bit warmer Wednesday, mostly clear at night,
  • Sunny and a bit warmer Thursday, mostly clear Thursday night,
  • Then sunny and a bit warmer Friday.
  • snow level 3,500 ft. Tuesday, 4,000 Tuesday night, free air freezing level 5,000 ft. Wednesday, 8,000 ft. Wednesday night, 11,000 ft. Thursday asnd Thursday night, then 12,000 ft. Friday.
  • highs 56-45 lows 35-32-38 cooling to 34 Sunday night.