Significant and Catastrophic Flooding in the Pacific Northwest; Very Cold Temperatures in the Northern Plains

The atmospheric river over the Pacific Northwest will begin to subside today, but lingering rainfall will exacerbate ongoing catastrophic major river flooding, and landslides will continue across portions of western Washington and northwest Oregon for several days. Arctic air will plummet southward into the Northern Plains today, bringing cold air in the single digits to the region by Friday. Read More >

Current conditions at

Knoxville, McGhee Tyson Airport (KTYS)

Lat: 35.82°NLon: 83.99°WElev: 981ft.

A Few Clouds

35°F

2°C

Humidity 67%
Wind Speed Calm
Barometer 30.03 in (1017.1 mb)
Dewpoint 25°F (-4°C)
Visibility 10.00 mi
Last update 11 Dec 8:53 am EST
Extended Forecast for

7 Miles NE Tallassee TN

Winter Weather Advisory December 11, 09:13am until December 11, 10:00am
Click here for hazard details and duration
...
  •  
    Winter Weather Advisory December 11, 09:13am until December 11, 10:00am

    NOW until 10:00am Thu

    Winter Weather Advisory

  • Today

    High: 39 °F

    Mostly Sunny

  • Tonight

    Tonight: Increasing clouds, with a low around 32. Calm wind becoming southwest around 5 mph after midnight.

    Low: 32 °F

    Increasing
    Clouds

  • Friday

    Friday: Mostly sunny, with a high near 51. Southwest wind 5 to 10 mph, with gusts as high as 20 mph.

    High: 51 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 33. Southwest wind around 5 mph becoming calm  in the evening.

    Low: 33 °F

    Partly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 50. Calm wind becoming west around 5 mph.

    High: 50 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: A chance of rain showers before 3am, then a chance of snow showers.  Partly cloudy, with a low around 25. Calm wind becoming northwest around 5 mph after midnight.  Chance of precipitation is 40%.

    Low: 25 °F

    Slight Chance
    Showers then
    Chance
    Rain/Snow

  • Sunday

    Sunday: A 30 percent chance of snow showers before 7am.  Mostly sunny, with a high near 29. North wind around 10 mph, with gusts as high as 20 mph.

    High: 29 °F

    Chance Snow
    Showers then
    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 13.

    Low: 13 °F

    Mostly Clear

Detailed Forecast

Today
Mostly sunny, with a high near 39. West wind around 5 mph.
Tonight
Increasing clouds, with a low around 32. Calm wind becoming southwest around 5 mph after midnight.
Friday
Mostly sunny, with a high near 51. Southwest wind 5 to 10 mph, with gusts as high as 20 mph.
Friday Night
Partly cloudy, with a low around 33. Southwest wind around 5 mph becoming calm in the evening.
Saturday
Mostly sunny, with a high near 50. Calm wind becoming west around 5 mph.
Saturday Night
A chance of rain showers before 3am, then a chance of snow showers. Partly cloudy, with a low around 25. Calm wind becoming northwest around 5 mph after midnight. Chance of precipitation is 40%.
Sunday
A 30 percent chance of snow showers before 7am. Mostly sunny, with a high near 29. North wind around 10 mph, with gusts as high as 20 mph.
Sunday Night
Mostly clear, with a low around 13.
Monday
Sunny, with a high near 39.
Monday Night
Mostly clear, with a low around 25.
Tuesday
Mostly sunny, with a high near 47.
Tuesday Night
Partly cloudy, with a low around 32.
Wednesday
A 30 percent chance of showers. Partly sunny, with a high near 51.
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ABOUT THIS FORECAST

 
Point Forecast:
7 Miles NE Tallassee TN
 35.62°N 83.87°W (Elev. 1867 ft)
6:06 am EST Dec 11, 2025
9am EST Dec 11, 2025-6pm EST Dec 17, 2025
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database