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Tim Chuey Weather

by | May 9, 2023 | Weather

May 10, 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 LATE THIS 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   THIS EVENING 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  Saturday through next Wednesday show a quiet weather pattern with a frontal system lingering offshore next Wednesday.

Forecast For The South Willamette Valley Including Eugene-Springfield:

  • 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 this afternoon (under 0.10 in. of rain possible), partly cloudy tonight,
  • 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.
  • highs 70-80 lows 44-53.
  • 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 cloudy start, partly cloudy and a bit warmer with a slight (20%) chance of thunderstorms this afternoon (under .01 in. of rain possible), mostly cloudy tonight,
  • AM clouds, sunny and a bit warmer Thursday afternoon, mostly clear Thursday night,
  • Mostly sunny and a bit warmer Friday, then clear Friday night.
  • highs 70-83 lows 47-54.
  • 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 cloudy start, partly cloudy with a slight (20%) chance of thunderstorms this afternoon, mostly cloudy tonight,
  • 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.
  • highs 60-67 lows 44-48.
  • 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:

  • 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 this afternoon (0.50 in. of rain possible, more in storms), (40%) chance of evening rain and thunderstorms, just mostly cloudy late tonight,
  • 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. today, 7,000 ft. tonight, free air freezing level 9,000 ft. Thursday, 10,000 ft. Thursday night, 11,000 ft. Friday, then 13,000 ft. Friday night.
  • highs 53-68 lows 35-43.
  • 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.