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Tim Chuey Weather

by | Apr 13, 2023 | Weather

April 13, 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 FROST ADVISORY IS IN EFFECT FROM 2 AM UNTIL 8 AM FRIDAY FOR CENTRAL DOUGLAS COUNTY AND JACKSON COUNTY.

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

Another  Upper Level Low Pressure Trough (“U” shape) is moving slowly eastward with an Upper Level High Pressure Ridge (“Arch” shape) moving in behind it to clear skies and keep us dry for  bit. The graphics for days 1-3 show the cold front that moved through the Pacific Northwest and the next one behind it.  The graphics for days 3-7  Sunday through Thursday show the continuing series of complex frontal systems that will slide into the Pacific Northwest through the period.

Note: Willamette Pass, Hoodoo, and Mt. Ashland  are still open for skiing. With the heavy snow pack the ski season is booming. Check their Web Sites for specific dates and times of operation.

Forecast For The South Willamette Valley Including Eugene-Springfield:

  • Partly cloudy with a slight (20%) chance of evening showers, partly cloudy with areas of frost late tonight,
  • Partly cloudy with areas of AM frost, partly cloudy and a bit warmer  Friday afternoon and evening, mostly cloudy late Friday night,
  • Mostly cloudy and a bit warmer Saturday, mostly cloudy with a slight (20%) chance of rain at night,
  • Mostly cloudy with a slight (20%) chance of AM rain, a bit cooler with rain Sunday afternoon, then rain Sunday night.
  • lows 35-42 cooling to 39 Sunday night highs 58-54.
  • Mostly cloudy and cooler with rain Monday, rain Monday night,
  • Mostly cloudy with rain and a bit cooler Tuesday, a good (50%) chance of rain at night,
  • Mostly cloudy with a good (50%) chance of rain, and a bit warmer Wednesday and Wednesday night,
  • Then mostly cloudy and a bit warmer with a good (50%) chance of rain Thursday..
  • highs 52-50 warming 56 Thursday lows 36-39. (seasonal averages high 61 low 40)

Forecast for the Umpqua Valley including Roseburg:

  • Partly cloudy with areas of frost tonight,
  • Some AM clouds with patchy frost, sunny and a bit warmer Friday afternoon, partly cloudy Friday night,
  • Mostly cloudy and a bit warmer Saturday, mostly cloudy at night,
  • Mostly cloudy with a good (50%) chance of AM rain, showers and a bit cooler Sunday afternoon, evening showers likely (70%), then rain and snow showers likely (70%)late Sunday night.
  • lows 36-42 highs 63-57.
  • Mostly cloudy with AM rain and snow, rain and a bit cooler Monday afternoon, evening rain and snow, rain and snow showers likely (70%) late Monday night,
  • Mostly cloudy with AM rain and snow showers, showers likely (70%) with a slight (20%) chance of thunderstorms Tuesday afternoon, a (30%) chance of rain and snow showers Tuesday night,
  • Mostly cloudy with a (40%) chance of rain and snow showers and a bit warmer Wednesday, a (40%) chance of showers Wednesday night,
  • Then mostly cloudy and a bit warmer with a good (50%) chance of showers Thursday.
  • highs 52-59 lows 37-40. (seasonal averages high 62 low 42)

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

  • Partly cloudy this evening, mostly cloudy late tonight with areas of coastal frost late,
  • Partly cloudy with areas of AM coastal frost, partly cloudy and a bit cooler Friday afternoon and evening, mostly cloudy late Friday night,
  • Mostly cloudy and a bit cooler Saturday and at night,
  • Mostly cloudy with AM rain likely (70%), rain and breezy and a bit cooler Sunday afternoon, then showers likely (70%) Sunday night.
  • lows 37-42 cooling to 39 Sunday night highs 58-54.
  • Mostly cloudy with rain and a bit cooler Monday and in the evening, rain and snow showers late Monday night,
  • Mostly cloudy with AM rain and snow showers likely (70%), showers likely (70%) and a bit cooler with a slight (20%) chance of thunderstorms Tuesday afternoon, a (40%) chance of showers Tuesday night,
  • Mostly cloudy and a bit warmer with a (40%) chance of showers Wednesday, a good (50%) chance of showers Wednesday night,
  • Then mostly cloudy and a bit warmer with a good (50%) chance of showers Thursday.
  • highs 52-50 warming to 55 Thursday lows 37-39. (seasonal averages high 56 low 44)

Forecast for the Northern Oregon Cascades including Willamette Pass:

  • Partly cloudy with a slight (20%) chance of snow showers, areas of frost late tonight,
  • Some AM clouds with widespread frost, mostly sunny and warmer Friday afternoon, partly cloudy with areas of frost late Friday night,
  • Clouds and sun with widespread AM frost, a mix of clouds and sun and a bit warmer Saturday, mostly cloudy in the evening, partly cloudy late at night,
  • Mostly cloudy with a (20%) chance of AM rain and snow, rain with snow likely (70%) and a bit cooler Sunday afternoon, then snow and rain Sunday night.
  • snow level at the surface tonight, free air freezing level at the surface rising to 5,000 ft. Friday afternoon, 6,000 ft. falling to 5,500 ft. late Friday night, 6,000 ft. rising to 6,500 ft. Saturday afternoon, 7,500 ft. falling to 7000 ft. late Saturday night, snow level 5,000 ft. Sunday, then 3,000 ft. Sunday night.
  • lows 17-32 cooling to 26 Sunday night highs 42-47 cooling to 43 Sunday.
  • Mostly cloudy with AM snow, snow and rain and colder Monday afternoon, snow Monday night,
  • Mostly cloudy with snow and a bit cooler with Tuesday, a good (50%) chance of evening rain, snow late at night,
  • Mostly cloudy with a good (50%) chance of AM snow, a good (50%) chance of  rain and a bit warmer Wednesday afternoon, a good (50%) chance of rain and snow Wednesday night,
  • Mostly cloudy with a good (50%) chance of AM rain and snow, then rain and snow likely (70%) and a bit warmer Thursday afternoon.
  • snow level 2,500 ft. Monday, 2,000 ft. Monday night and Tuesday 2,500 ft. Tuesday night, 3,500 ft. Wednesday, 4,000 ft. Wednesday night, then 4,500 ft. Thursday.
  • highs 35- 33 warming to 42 Thursday lows 27-22.