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Tim Chuey Weather

by | May 5, 2023 | Weather

May 5, 2023

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 FLOOD WARNING IS IN EFFECT UNTIL NEXT WEDNESDAY MORNING FOR THE JOHN DAY RIVER AT SERVICE CREEK AFFECTING WHEELER COUNTY.
  • A FLOOD WARNING IS IN EFFECT FOR THE SPRAGUE  RIVER NEAR BEATTY AFFECTING KLAMATH COUNTY UNTIL EARLY SUNDAY MORNING DUE TO SNOW MELT.
  • A FLOOD WARNING IS IN EFFECT FOR THE SILVIES RIVER NEAR BURNS AFFECTING HARNEY  COUNTY UNTIL LATE NEXT MONDAY NIGHT DUE TO SNOW MELT.
  • A FLOOD ADVISORY IS IN EFFECT FOR BAKER COUNTY DUE TO RAIN AND SNOW MELT UNTIL 5 PM MDT SUNDAY.

HEALTH ADVISORIES

A PERMANENT RECREATIONAL HEALTH ADVISORY IS IN EFFECT FOR THE SOUTH UMPQUA RIVER AND MAINSTEM UMPQUA RIVER. THE ADVISORY COVERS THE SOUTH UMPQUA RIVER FROM CANYONVILLE DOWNSTREAM TO THE CONFLUENCE OF THE MAINSTEM UMPQUA RIVER, AND THE MAINSTEM UMPQUA RIVER DOWNSTREAM PAST ELKTON TO LAWSON BAR. PEOPLE IN THE BEDROCK ALONG THE RIVERS EDGE ARE ARE KNOWN TO DEVELOP CYANOBACTERIA (BLUE-GREEN ALGAE) BLOOMS THAT CAN BE HARMFUL TO PETS AND PEOPLE IF ACCIDENTAL INGESTION OCCURS. SIGNS HAVE BEEN POSTED AT SEVERAL ACCESS AREAS ALONG THE RIVER.

THE WEATHER PATTERN

An Upper Level Low  and surface low with it associated cold front are sliding down the California coast keeping the flow of coastal moisture aimed our way. The graphics for days 1-3  show the frontal system, as described above,  moving southward tonight. The graphics for days 3-7  Monday through next Friday show a quiet weather pattern, but a parade of fronts can be seen offshore to our northwest.

Forecast For The South Willamette Valley Including Eugene-Springfield:

  • Mostly cloudy with a slight (20%) chance of rain tonight with patchy fog late (under 0.10 in. of rain possible),
  • Mostly cloudy with patchy AM fog, a good (50%) chance of showers Saturday (0.10 in. of rain possible), a slight (20%) chance of showers Saturday night (under 0.10 in. of rain possible),
  • Mostly cloudy with a slight (20%) chance of AM showers, a good (50%) chance of showers Sunday afternoon, a good (50%) chance of evening showers, a good (50%) chance of rain late at night (under 0.10 in. of rain possible),
  • Mostly cloudy with AM rain likely (70%), showers likely (70%) with a slight (20%) chance of thunderstorms Monday afternoon, a (40%) chance of evening showers, then partly cloudy late Monday night.
  • lows 47-42 warming to 44 Sunday night cooling to 42 Monday night highs near 60.
  • AM clouds and sun with a slight (20%) chance of showers and a bit warmer Tuesday, partly cloudy Tuesday night,
  • Partly cloudy and a bit warmer Wednesday, partly cloudy at night,
  • Partly cloudy and a bit warmer Thursday, mostly clear Thursday night,
  • Then mostly sunny and a bit warmer Friday.
  • highs 65-76 lows 42-46. (seasonal averages high 66 low 43)

Forecast for the Umpqua Valley including Roseburg:

  • Mostly cloudy with evening showers likely (70%), a good (50%) chance of showers late tonight (0.10 in. of rain possible),
  • Mostly cloudy with a good (50%) chance of AM showers, showers likely (70%) Saturday afternoon (under 0.10 in. of rain possible), a (30%) chance of showers Saturday night (0.10 in. of rain possible),
  • Mostly cloudy with a (30%) chance of showers and a bit warmer Sunday, evening showers likely (70%), rain late at night (0.10 in. of rain possible),
  • Mostly cloudy with a good (50%) chance of AM showers, a bit cooler with showers likely (70%) Monday afternoon, then a (30%) chance of showers Monday night.
  • lows 46-42 warming to 46 Monday night highs 62-63 c0oling to 60 Monday.
  • Mostly cloudy with a slight (20%) chance of AM showers, partly cloudy a bit warmer with a slight (20%) chance of showers Tuesday afternoon, partly cloudy Tuesday night,
  • Partly cloudy and a bit warmer Wednesday, partly cloudy at night,
  • Mostly sunny and a bit warmer Thursday, mostly clear Thursday night,
  • Then sunny and a bit warmer Friday.
  • highs 66-80 lows 45-49. (seasonal averages high 69 low 46)

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

  • Mostly cloudy with a (40%) chance of showers tonight (under 0.10 in. of rain possible),
  • Mostly cloudy and a bit warmer with a (30%) chance of showers Saturday (under 0.10 in. of rain possible), a slight (20%) chance of showers Saturday night (under 0.10 in. of rain possible),
  • Mostly cloudy with a (30%) chance of showers Sunday, evening showers, rain late at night (0.10 in. of rain possible),
  • Mostly cloudy with a good (50%) of AM rain, a good (50%) chance of showers and a bit warmer Monday afternoon, then a slight (20%) chance of showers Monday night.
  • lows 45-42 warming back to 45 Sunday night cooling back to 42 Monday night highs near 58.
  • Mostly cloudy with a slight (20%) chance of AM showers, just partly cloudy and a bit warmer Tuesday, partly cloudy Tuesday night,
  • Partly cloudy and a bit warmer Wednesday and at night,
  • Mostly sunny and a bit warmer Thursday, mostly clear Thursday night,
  • Then sunny and a bit warmer Friday.
  • highs 60-67 lows 43-45. (seasonal averages high 59 low 47)

Forecast for the Northern Oregon Cascades including Willamette Pass:

  • Mostly cloudy with a good (50%) chance of rain with a good (50%) chance of snow late tonight (0.25 in. of rain possible, little or no snow accumulation expected),
  • Mostly cloudy with a good (50%) chance of AM rain and snow showers, showers with a slight (20%) chance of thunderstorms and a bit warmer Saturday afternoon (0.25 in. of rain possible, 1 in. of snow possible), evening showers and snow showers likely (70%) with a slight (20%) chance of evening thunderstorms, a good (50%) chance of rain and snow showers late Saturday night (0.25 in. of rain possible, 1 in. of snow possible),
  • Mostly cloudy with a good (50%) chance of AM snow showers, a good (50%) chance of showers and a bit warmer Sunday afternoon (little or no snow accumulation expected), evening showers likely (70%), rain and snow likely (70%) late at night,
  • Mostly cloudy AM rain and snow likely (70%), showers and a bit cooler with a slight (20%) chance of thunderstorms Monday afternoon, evening rain and snow showers likely (70%), then a slight (20%) chance of rain and snow showers  late Monday night.
  • snow level 5,000 ft. tonight and Saturday, 4,500 ft. Saturday night, 4,000 ft. rising to 5,000 ft. Sunday afternoon, then 5,000 ft. Sunday night through Monday night.
  • lows 32-28 warming to 32 Sunday night cooling to 29 Monday night highs 42-44 cooling to 42 Monday.
  • Clouds and sun with slight (20%) chance of AM rain and snow showers, a good (50%) chance of showers and a bit warmer Tuesday afternoon, partly cloudy with a (30%) chance of evening showers, just partly cloudy late Tuesday night,
  • Partly cloudy and a bit warmer with a slight (20%) chance of showers Wednesday afternoon and evening, just partly cloudy late at night,
  • Some AM clouds, sunny and a bit warmer Thursday afternoon, mostly clear Thursday night,
  • Then mostly sunny and a bit warmer Friday.
  • snow level 5,000 ft. Tuesday, 5,500 ft. Tuesday night, 6,000 ft. Wednesday, 6,500 ft Wednesday night,free air freezing level 9,000 ft. Thursday, 11,000 ft. Thursday night, then 13,000 ft. Friday.
  • highs 47-65 lows 32-36.