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Tim Chuey Weather

by | May 9, 2023 | Weather

May 9, 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 THURSDAY MORNING FOR THE JOHN DAY RIVER AT SERVICE CREEK AFFECTING WHEELER COUNTY DUE TO RAIN AND SNOW MELT.
  • A FLOOD WARNING IS IN EFFECT FOR THE SILVIES RIVER NEAR BURNS AFFECTING HARNEY  COUNTY UNTIL   WEDNESDAY EVENING DUE TO RAIN AND SNOW MELT.
  • A FLOOD ADVISORY IS IN EFFECT FOR BAKER COUNTY UNTIL 6 PM MDT TODAY DUE TO RAIN AND SNOW MELT.

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  (“U” shape) is moving eastward and will weaken the moisture flow to the Pacific Northwest to be replaced by a High Pressure Ridge (“Arch” shape). The graphics for days 1-3  show the frontal system, show no frontal systems approaching the Pacific Northwest. The graphics for days 3-7  Friday through next Tuesday show a quiet weather pattern with a frontal system lingering offshore next Tuesday.

Forecast For The South Willamette Valley Including Eugene-Springfield:

  • Mostly clear tonight,
  • AM sun with a slight (20%) chance of rain, partly cloudy with a (30%) chance of showers and a slight (20%) chance of thunderstorms and a bit warmer Wednesday afternoon (under 0.10 in. of rain possible), partly cloudy Wednesday night,
  • A mix of clouds and sun and a bit warmer Thursday, mostly clear at night,
  • Mostly sunny and a bit warmer Friday, then mostly clear Friday night.
  • lows 42-53 highs 70-80.
  • Sunny and a bit warmer Saturday, clear Saturday night,
  • Sunny and a bit warmer Sunday, mostly clear at night,
  • Mostly sunny and a bit cooler Monday with a slight (20%) chance of afternoon showers, partly cloudy with a slight (20%) chance of evening rain, just partly cloudy late Monday night,
  • Then partly cloudy and a bit cooler Tuesday with a slight (20%) chance of rain in the afternoon.
  • highs 88-94 cooling to 82 Tuesday lows 58-62 cooling back to 58 Monday night. (seasonal averages high 67 low 43)

Forecast for the Umpqua Valley including Roseburg:

  • Mostly clear this evening, becoming mostly cloudy tonight with areas of coastal fog while patchy inland fog late tonight,
  • Mostly cloudy start, partly cloudy and a bit warmer with a slight (20%) chance of thunderstorms Wednesday afternoon (under .01 in. of rain possible), mostly cloudy Wednesday night,
  • AM clouds, sunny and a bit warmer Thursday afternoon, mostly clear Thursday night,
  • Mostly sunny and a bit warmer Friday, then clear Friday night.
  • lows 46-54 highs 70-83.
  • Sunny and a bit warmer Saturday, clear Saturday night,
  • Sunny and a bit warmer Sunday, mostly clear at night,
  • Sunny and a bit cooler Monday and Tuesday, mostly clear Monday night.
  • highs 92-98 cooling to 85 Tuesday lows near 60. (seasonal averages high 70 low 47)

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

  • Mostly clear with a slight (20%) chance of evening thunderstorms, becoming partly cloudy late tonight,
  • Mostly cloudy start, partly cloudy with a slight (20%) chance of thunderstorms Wednesday afternoon, mostly cloudy Wednesday night,
  • Mostly cloudy start, sunny and a bit warmer Thursday afternoon, partly cloudy in the evening, mostly clear late at night,
  • Some AM clouds, sunny and a bit warmer Friday, then clear Friday night.
  • lows 43-48 highs 60-67.
  • Sunny and a bit warmer Saturday, clear Saturday night,
  • Sunny and a bit warmer Sunday, mostly clear at night,
  • Mostly sunny and a bit cooler Monday, partly cloudy with a slight (20%) chance of evening showers, mostly clear Monday night,
  • Then sunny and a bit cooler Tuesday.
  • highs 80-88 cooling to 67 Tuesday lows 60-52. (seasonal averages high 60 low 47)

Forecast for the Northern Oregon Cascades including Willamette Pass:

  • Partly cloudy with a good (50%) chance of evening rain and slight (20%) chance of thunderstorms (under 0.10 in. of rain possible, more in storms), just partly cloudy late tonight,
  • Mostly sunny start, a mix of clouds and sun and a bit warmer with a (40%) chance of showers and a slight (20%) chance of thunderstorms Wednesday (0.50 in. of rain possible, more in storms), (40%) chance of evening rain and thunderstorms, just mostly cloudy late Wednesday night,
  • Partly cloudy and a bit warmer Thursday afternoon, partly cloudy at night,
  • Mostly sunny and a bit warmer Friday, then clear Friday night.
  • snow level 6,500 ft. tonight and Wednesday, 7,000 ft. Wednesday night, free air freezing level 9,000 ft. Thursday, 10,000 ft. Thursday night, 11,000 ft. Friday, then 13,000 ft. Friday night.
  •  lows 33-43 highs 53-68.
  • Sunny and a bit warmer Saturday, clear Saturday night,
  • Mostly sunny and a bit warmer Sunday, partly cloudy with a slight (20%) chance of evening rain, just partly cloudy late at night,
  • AM sun, a mix of clouds and sun with a (40%) chance of rain Monday afternoon, partly cloudy with a (40%) chance of evening rain, just partly cloudy late Monday night,
  • Then partly cloudy and a bit cooler with a (30%) chance of rain Tuesday afternoon.
  • free air freezing level 14,000 ft. Saturday, 15,000 ft. Saturday night, 14,000 ft. Sunday, then snow level above 8,000 ft. Sunday night through Tuesday.
  • highs 72-75 cooling to 69 Tuesday lows 47-45.