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Tim Chuey Weather

by | Apr 10, 2023 | Weather

by Tim Chuey | Apr 10, 2023 | Weather

April 11, 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 WIND ADVISORY IS IN EFFECT UNTIL 5 AM TODAY FOR NORTHERN AND EASTERN KLAMATH COUNTY AND WESTERN, CENTRAL, AND EASTERN LAKE 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 sending more moisture to the Pacific Northwest in the form of an Atmospheric River. The graphics for days 1-3 show the cold front that moved through the Pacific Northwest M0oday.  The graphics for days 3-7  Friday through Tuesday 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:

  • Mostly cloudy with AM showers and a slight (20%) chance of thunderstorms, a bit cooler with a good (50%) chance of showers and a slight (20%) chance of thunderstorms this afternoon (0.25 in. of rain possible, more in storms), evening showers with a slight (20%) chance of thunderstorms, snow showers late tonight (0.25 in. of rain possible, no snow accumulation expected),
  • Mostly cloudy with a good (50%) chance of AM snow showers, a mix of clouds and sun and a bit cooler with a good (50%) chance of showers Wednesday afternoon (under 0.10 in. of rain possible, AM snow level 1,000 ft.), partly cloudy with areas of frost at night,
  • Clouds and sun with widespread AM frost, a mix of clouds and sun and a bit warmer Thursday afternoon, becoming mostly cloudy with a slight (20%) chance of evening showers, then just partly cloudy late Thursday night.
  • highs 52-50 warming to 53 Thursday lows 36-32 warming back to 36 Thursday night.
  • A mix of clouds and sun and a bit warmer Friday, partly cloudy Friday night,
  • A  mix of clouds and sun and a bit warmer Saturday, becoming mostly cloudy with a slight (20%) chance of rain at night,
  • Mostly cloudy with a slight (20%) chance of AM rain, a bit warmer with a good (50%) chance of rain Sunday afternoon and Sunday night,
  • Then mostly cloudy and cooler with rain likely (70%) Monday.
  • highs 60-64 cooling to 54 Monday lows 37-42. (seasonal averages high 60 low 39)

Forecast for the Umpqua Valley including Roseburg:

  • Mostly cloudy with AM rain and snow likely (70%), a bit cooler with a good (50%) chance of rain and  showers this afternoon (under 0.10 in. of rain possible, 1 in. of snow possible), snow level 2,000 ft.), partly cloudy with a slight (20%) chance of evening rain and snow showers, cloudy with rain and snow showers late tonight (under 0.10 in. of rain possible, snow level 2,000 ft. falling to 1,500 ft.),
  • Mostly cloudy and a bit cooler with a good (50%) of rain and snow Wednesday,  just partly cloudy Wednesday night,
  • Partly cloudy and a bit warmer Thursday, then partly cloudy Thursday night.
  • highs 55-52 lows 37-33 warming to 36 Thursday night.
  • Partly cloudy Friday, mostly cloudy Friday night,
  • Partly cloudy Saturday and at night,
  • Mostly cloudy and a bit cooler with a slight (20%) chance of rain Sunday, a (40%) chance of rain Sunday night,
  • Mostly cloudy with AM rain likely (70%), then mostly cloudy and cooler with a good (50%) chance of rain Monday afternoon.
  • highs 55-69 lows 37-42. (seasonal averages high 62 low 42)

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

  • Mostly cloudy with AM coastal rain likely (70%) and partly cloudy with a slight (20%) chance of coastal showers this afternoon while inland AM rain likely (70%) and a slight (20%) chance of inland rain and snow this afternoon (0.10 in of rain possible, snow level 2,000 ft.), partly cloudy with a good (50%) chance of evening coastal showers and mostly cloudy with coastal showers late tonight while with a slight (20%) chance of evening inland rain and snow showers and cloudy with inland rain and snow showers late tonight (0.10 in. of rain possible, snow level 1,500 ft. rising to 2,000 ft. late tonight),
  • Mostly cloudy with a (30%) chance of coastal showers Wednesday while a (30%) chance of AM inland rain and snow showers and a slight (20%) chance of inland showers and a bit cooler and a bit cooler Wednesday afternoon (snow level 1,500 ft. rising to 2,000 ft. in the afternoon), just partly cloudy Wednesday night,
  • Mostly cloudy and a bit warmer Thursday, then mostly cloudy Thursday night.
  • highs 53-50 warming to 52 Thursday lows 37-34 warming to 36 Thursday night.
  • Partly cloudy and a bit warmer Friday and Friday night,
  • Mostly cloudy and a bit warmer Saturday and at night,
  • Mostly cloudy and a bit warmer with a (30%) chance of rain Sunday, a (30%) chance of rain Sunday night,
  • Mostly cloudy with AM rain likely (70%), then a good (50%) chance of rain and a bit cooler Monday afternoon.
  • highs 56-58 cooling to 52 Monday lows 38-42 cooling to 40 Sunday night. (seasonal averages high 56 low 43)

Forecast for the Northern Oregon Cascades including Willamette Pass:

  • Mostly cloudy with snow showers and a bit cooler today (1-4 in. of snow possible), a good (50%) chance of evening snow showers with a slight (20%) chance of thunderstorms, snow showers late tonight (0.25 in. of rain possible, 1-3 in. of snow possible),
  • Mostly cloudy with AM snow showers likely (70%), a good (50%) chance of snow showers Wednesday afternoon (light snow accumulation expected), becoming partly cloudy late at night,
  • A mix of clouds and sun and a bit warmer Thursday, partly cloudy with a slight (20%) chance of evening rain and snow showers, then just partly cloudy late Thursday night.
  • snow level 2,500 ft. today and this evening, at the surface Wednesday, free air freezing level at the surface Wednesday night, 4,000 ft. Thursday, then snow level 2,500 ft. Thursday night.
  • highs 32-38 lows 22-17 warming back to 22 Thursday night .
  • Partly cloudy and a bit warmer Friday, partly cloudy Friday night,
  • Partly cloudy and a bit warmer Saturday, partly cloudy at night,
  • A mix of clouds and sun and a bit warmer with a slight (20%) chance of rain Sunday, mostly cloudy with a good (50%) chance of rain and snow Sunday night,
  • Mostly cloudy with a good (50%) chance of AM rain and snow, then rain and snow likely (70%) and colder Monday afternoon.
  • free air freezing level 4,500 ft. Friday, 6,500 ft. Friday night, 8,000 ft. Saturday and Saturday night, 6,000 ft. Sunday and Sunday night, then 4,500 ft. Monday.
  • highs 44-52 cooling to 40 Monday lows 27-32 cooling to 30 Sunday night.