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

4 Miles SSW Winthrop 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: 28 °F

    Partly Sunny

  • Tonight

    Tonight: Mostly cloudy, with a low around 19. Calm wind.

    Low: 19 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 30. Calm wind.

    High: 30 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 20. Calm wind.

    Low: 20 °F

    Partly Cloudy

  • New Year's Day

    New Year's Day: Partly sunny, with a high near 31. Calm wind.

    High: 31 °F

    Partly Sunny

  • Thursday Night

    Thursday Night: A 20 percent chance of snow after 10pm. Mostly cloudy, with a low around 22.

    Low: 22 °F

    Slight Chance
    Snow

  • Friday

    Friday: A 40 percent chance of snow, mainly after 10am. Mostly cloudy, with a high near 31. New snow accumulation of less than a half inch possible.

    High: 31 °F

    Chance Snow

  • Friday Night

    Friday Night: Rain likely, possibly mixed with snow. Mostly cloudy, with a low around 26. Chance of precipitation is 70%.

    Low: 26 °F

    Rain/Snow
    Likely

Detailed Forecast

This Afternoon
Partly sunny, with a high near 28. Calm wind.
Tonight
Mostly cloudy, with a low around 19. Calm wind.
Wednesday
Mostly sunny, with a high near 30. Calm wind.
Wednesday Night
Partly cloudy, with a low around 20. Calm wind.
New Year's Day
Partly sunny, with a high near 31. Calm wind.
Thursday Night
A 20 percent chance of snow after 10pm. Mostly cloudy, with a low around 22.
Friday
A 40 percent chance of snow, mainly after 10am. Mostly cloudy, with a high near 31. New snow accumulation of less than a half inch possible.
Friday Night
Rain likely, possibly mixed with snow. Mostly cloudy, with a low around 26. Chance of precipitation is 70%.
Saturday
Rain likely, possibly mixed with snow. Mostly cloudy, with a high near 36. Chance of precipitation is 70%.
Saturday Night
A chance of rain and snow. Mostly cloudy, with a low around 27. Chance of precipitation is 50%.
Sunday
A chance of rain and snow. Mostly cloudy, with a high near 34. Chance of precipitation is 40%.
Sunday Night
A chance of rain and snow. Mostly cloudy, with a low around 24. Chance of precipitation is 40%.
Monday
A 30 percent chance of snow. Mostly cloudy, with a high near 33.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
4 Miles SSW Winthrop WA
 48.41°N 120.2°W (Elev. 2871 ft)
Last Update:
1:32 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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Chance of Precipitation