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

Heavy Lake Effect Snow; Subfreezing Temperatures in the Eastern U.S.

A multi-day heavy lake effect snow event is expected downwind of Lakes Erie and Ontario through New Year's Day. The Arctic front will continue to bring increasing winds to the Northeast that will remain gusty. Subfreezing overnight low temperatures will be found as far south as the Gulf Coast. Read More >

Hazardous Weather Conditions

Current conditions at

NCSB (NCSW1)

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

NA

12°F

-11°C

Humidity 90%
Wind Speed N 2 MPH
Barometer NA
Dewpoint 10°F (-12°C)
Visibility NA
Last update 30 Dec 03:06 AM PST
Extended Forecast for

13 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

  • Overnight

    Low: 19 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 28. Light north wind.

    High: 28 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 23. Light northwest wind.

    Low: 23 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 31. Calm wind.

    High: 31 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 22. Calm wind.

    Low: 22 °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.

    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 25. New snow accumulation of less than a half inch possible.

    Low: 25 °F

    Chance Snow

  • Friday

    Friday: A chance of snow before 4pm, then snow likely, possibly mixed with rain. Mostly cloudy, with a high near 30. Chance of precipitation is 60%.

    High: 30 °F

    Chance Snow
    then
    Rain/Snow
    Likely

Detailed Forecast

Overnight
Partly cloudy, with a low around 19. Calm wind.
Tuesday
Mostly sunny, with a high near 28. Light north wind.
Tuesday Night
Mostly cloudy, with a low around 23. Light northwest wind.
Wednesday
Mostly sunny, with a high near 31. Calm wind.
Wednesday Night
Partly cloudy, with a low around 22. Calm wind.
New Year's Day
A 10 percent chance of snow after 4pm. Partly sunny, with a high near 31.
Thursday Night
A 30 percent chance of snow, mainly after 10pm. Mostly cloudy, with a low around 25. New snow accumulation of less than a half inch possible.
Friday
A chance of snow before 4pm, then snow likely, possibly mixed with rain. Mostly cloudy, with a high near 30. Chance of precipitation is 60%.
Friday Night
Rain likely, possibly mixed with snow, mainly before 4am. Mostly cloudy, with a low around 28. Chance of precipitation is 70%.
Saturday
A chance of rain and snow before 7am, then snow likely. Mostly cloudy, with a high near 33. Chance of precipitation is 60%.
Saturday Night
A 40 percent chance of snow. Mostly cloudy, with a low around 24.
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 24.
Monday
A 30 percent chance of snow. Partly sunny, with a high near 31.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
13 Miles SSW Twisp WA
 48.2°N 120.24°W (Elev. 3743 ft)
Last Update:
3:31 am PST Dec 30, 2025
Forecast Valid:
4am PST Dec 30, 2025-6pm PST Jan 5, 2026
 
Forecast Discussion
 
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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

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation