Lake-effect Snow and Whiteout Conditions in the Great Lakes Region; Below-average Temperatures in the East

Heavy lake-effect and lake-enhanced snow will persist downwind of the Great Lakes and produce some whiteout conditions that could cause difficult travel conditions. A coastal low will produce moderate to heavy snow over parts of southern and eastern New England into the afternoon. Below average temperatures are expected across the eastern U.S., particularly with chilly morning temperatures. Read More >

Current conditions at

NCSB (NCSW1)

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

NA

21°F

-6°C

Humidity 95%
Wind Speed NW 4 MPH
Barometer NA
Dewpoint 20°F (-7°C)
Visibility NA
Wind Chill15°F (-9°C)
Last update 19 Jan 04:06 AM PST
Extended Forecast for

12 Miles SW Twisp WA

Air Stagnation Advisory January 19, 04:46am until January 20, 04:00pm
Click here for hazard details and duration
Air Stagnation Advisory
  •  
    Air Stagnation Advisory January 19, 04:46am until January 20, 04:00pm

    NOW until 4:00pm Tue

    Air Stagnation Advisory

  • M.L.King Day

    High: 36 °F

    Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around 27. Calm wind becoming northwest around 5 mph.

    Low: 27 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 35. Light northwest wind.

    High: 35 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 23. Calm wind.

    Low: 23 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 33. Calm wind.

    High: 33 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 23.

    Low: 23 °F

    Partly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 33.

    High: 33 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 22.

    Low: 22 °F

    Partly Cloudy

Detailed Forecast

M.L.King Day
Sunny, with a high near 36. Calm wind.
Tonight
Partly cloudy, with a low around 27. Calm wind becoming northwest around 5 mph.
Tuesday
Mostly sunny, with a high near 35. Light northwest wind.
Tuesday Night
Mostly clear, with a low around 23. Calm wind.
Wednesday
Sunny, with a high near 33. Calm wind.
Wednesday Night
Partly cloudy, with a low around 23.
Thursday
Mostly sunny, with a high near 33.
Thursday Night
Partly cloudy, with a low around 22.
Friday
Mostly sunny, with a high near 32.
Friday Night
Partly cloudy, with a low around 21.
Saturday
A 20 percent chance of snow. Mostly sunny, with a high near 30.
Saturday Night
A 30 percent chance of snow. Mostly cloudy, with a low around 21.
Sunday
A 40 percent chance of snow. Partly sunny, with a high near 29.
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ABOUT THIS FORECAST

 
Point Forecast:
12 Miles SW Twisp WA
 48.21°N 120.27°W (Elev. 4606 ft)
2:57 am PST Jan 19, 2026
4am PST Jan 19, 2026-6pm PST Jan 25, 2026
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database