National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Heavy Lake Effect Snow Downwind of Lakes Erie and Ontario; Fire Weather Concerns in the Southern Plains and Southeast

A multi-day heavy lake effect snow event is expected downwind of Lakes Erie and Ontario through New Year's Day. There is increasing confidence in snow squalls causing bursts of snow & gusty winds on New Year's Eve. Elevated fire weather conditions will continue today over parts of the Southern Plains and across much of the Southeast U.S. Read More >

Hazardous Weather Conditions

Current conditions at

NCSB (NCSW1)

Lat: 48.42528°NLon: 120.14194°WElev: 1697.0ft.

NA

18°F

-8°C

Humidity 81%
Wind Speed N 2 MPH
Barometer NA
Dewpoint 13°F (-11°C)
Visibility NA
Last update 30 Dec 10:06 AM PST
Extended Forecast for

14 Miles SSW Twisp WA

Air Stagnation Advisory until January 1, 12:00pm
Click here for hazard details and duration
Air Stagnation Advisory
  •  
    Air Stagnation Advisory until January 1, 12:00pm

    NOW until 12:00pm Thu

    Air Stagnation Advisory

  • Today

    High: 31 °F

    Mostly Sunny

  • Tonight

    Tonight: Mostly cloudy, with a low around 24. Calm wind.

    Low: 24 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 34. Calm wind.

    High: 34 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 21. Calm wind.

    Low: 21 °F

    Partly Cloudy

  • New Year's Day

    New Year's Day: A 10 percent chance of snow after 4pm. Partly sunny, with a high near 31. Calm wind.

    High: 31 °F

    Partly Sunny
    then Slight
    Chance Snow

  • Thursday Night

    Thursday Night: A 30 percent chance of snow, mainly after 10pm. Mostly cloudy, with a low around 24. New snow accumulation of less than one inch possible.

    Low: 24 °F

    Chance Snow

  • Friday

    Friday: A 50 percent chance of snow. Mostly cloudy, with a high near 31. New snow accumulation of less than one inch possible.

    High: 31 °F

    Chance Snow

  • Friday Night

    Friday Night: Snow likely, mainly before 4am. Mostly cloudy, with a low around 27. Chance of precipitation is 70%.

    Low: 27 °F

    Snow Likely

Detailed Forecast

Today
Mostly sunny, with a high near 31. Calm wind.
Tonight
Mostly cloudy, with a low around 24. Calm wind.
Wednesday
Mostly sunny, with a high near 34. Calm wind.
Wednesday Night
Partly cloudy, with a low around 21. Calm wind.
New Year's Day
A 10 percent chance of snow after 4pm. Partly sunny, with a high near 31. Calm wind.
Thursday Night
A 30 percent chance of snow, mainly after 10pm. Mostly cloudy, with a low around 24. New snow accumulation of less than one inch possible.
Friday
A 50 percent chance of snow. Mostly cloudy, with a high near 31. New snow accumulation of less than one inch possible.
Friday Night
Snow likely, mainly before 4am. Mostly cloudy, with a low around 27. Chance of precipitation is 70%.
Saturday
Snow likely, mainly after 10am. Mostly cloudy, with a high near 33. Chance of precipitation is 60%.
Saturday Night
A 40 percent chance of snow, mainly before 4am. Mostly cloudy, with a low around 23.
Sunday
A 30 percent chance of snow. Partly sunny, with a high near 31.
Sunday Night
A 40 percent chance of snow. Mostly cloudy, with a low around 23.
Monday
A 30 percent chance of snow. Partly sunny, with a high near 32.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
14 Miles SSW Twisp WA
 48.17°N 120.26°W (Elev. 4364 ft)
Last Update:
3:31 am PST Dec 30, 2025
Forecast Valid:
10am PST Dec 30, 2025-6pm PST Jan 5, 2026
 
Forecast Discussion
 
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Additional Resources

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation