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

33°F

1°C

Humidity 57%
Wind Speed SSW 0 MPH
Barometer NA
Dewpoint 19°F (-7°C)
Visibility NA
Last update 30 Dec 02:06 PM PST
Extended Forecast for

11 Miles WSW 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

  • This Afternoon

    High: 29 °F

    Mostly Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around 23. Calm wind.

    Low: 23 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 32. Calm wind.

    High: 32 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 20. Calm wind.

    Low: 20 °F

    Mostly Clear

  • New Year's Day

    New Year's Day: Partly sunny, with a high near 29. Calm wind.

    High: 29 °F

    Partly Sunny

  • Thursday Night

    Thursday Night: A 30 percent chance of snow after 10pm. Mostly cloudy, with a low around 22. New snow accumulation of less than a half inch possible.

    Low: 22 °F

    Chance Snow

  • Friday

    Friday: Snow, mainly after 10am. High near 28. Chance of precipitation is 80%. New snow accumulation of less than a half inch possible.

    High: 28 °F

    Snow

  • Friday Night

    Friday Night: Snow. Low around 26. Chance of precipitation is 80%.

    Low: 26 °F

    Snow

Detailed Forecast

This Afternoon
Mostly sunny, with a high near 29. Calm wind.
Tonight
Partly cloudy, with a low around 23. Calm wind.
Wednesday
Mostly sunny, with a high near 32. Calm wind.
Wednesday Night
Mostly clear, with a low around 20. Calm wind.
New Year's Day
Partly sunny, with a high near 29. Calm wind.
Thursday Night
A 30 percent chance of snow after 10pm. Mostly cloudy, with a low around 22. New snow accumulation of less than a half inch possible.
Friday
Snow, mainly after 10am. High near 28. Chance of precipitation is 80%. New snow accumulation of less than a half inch possible.
Friday Night
Snow. Low around 26. Chance of precipitation is 80%.
Saturday
Snow. High near 31. Chance of precipitation is 80%.
Saturday Night
Snow likely, mainly before 10pm. Mostly cloudy, with a low around 25. Chance of precipitation is 60%.
Sunday
A 40 percent chance of snow. Partly sunny, with a high near 30.
Sunday Night
A 50 percent chance of snow. Mostly cloudy, with a low around 22.
Monday
A 40 percent chance of snow. Partly sunny, with a high near 29.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
11 Miles WSW Twisp WA
 48.29°N 120.33°W (Elev. 5220 ft)
Last Update:
2:47 pm PST Dec 30, 2025
Forecast Valid:
2pm PST Dec 30, 2025-6pm PST Jan 5, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation