Strong Atmospheric River Bringing Heavy Rain to the Pacific Northwest; Areas of Snow in the North-Central and Eastern U.S.

A strong atmospheric river will bring prolonged heavy rainfall along with gusty winds to the Pacific Northwest through much of this week. The heavy rainfall may lead to widespread urban and river flooding. Accumulating snow is expected over parts of the central Appalachians and Mid-Atlantic today as well as the Upper Midwest and the Upper Great Lakes this evening into Tuesday. Read More >

Hazardous Weather Conditions

Current conditions at

NCSB (NCSW1)

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

NA

35°F

2°C

Humidity 97%
Wind Speed N 1 MPH
Barometer NA
Dewpoint 34°F (1°C)
Visibility NA
Last update 08 Dec 12:06 PM PST
Extended Forecast for

10 Miles E Twisp WA

  • This Afternoon

    This Afternoon: Rain and snow, becoming all rain after 1pm.  High near 38. South wind 6 to 8 mph.  Chance of precipitation is 90%. Total daytime snow accumulation of less than a half inch possible.

    High: 38 °F

    Rain/Snow

  • Tonight

    Tonight: Rain, possibly mixed with snow, mainly before 1am.  Low around 32. West wind 11 to 15 mph, with gusts as high as 24 mph.  Chance of precipitation is 80%. Little or no snow accumulation expected.

    Low: 32 °F

    Rain/Snow

  • Tuesday

    Tuesday: A 30 percent chance of snow after 10am.  Increasing clouds, with a high near 37. West wind 6 to 10 mph.  New snow accumulation of less than one inch possible.

    High: 37 °F

    Chance Snow

  • Tuesday Night

    Tuesday Night: Snow.  Low around 31. West wind around 6 mph.  Chance of precipitation is 90%. New snow accumulation of 3 to 5 inches possible.

    Low: 31 °F

    Snow

  • Wednesday

    Wednesday: Rain and snow likely before 10am, then rain likely between 10am and 4pm, then rain likely, possibly mixed with snow after 4pm.  Mostly cloudy, with a high near 38. West wind around 7 mph.  Chance of precipitation is 70%. New snow accumulation of less than a half inch possible.

    High: 38 °F

    Rain/Snow
    Likely

  • Wednesday Night

    Wednesday Night: Rain and snow likely.  Mostly cloudy, with a low around 32. Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.

    Low: 32 °F

    Rain/Snow
    Likely

  • Thursday

    Thursday: A chance of rain and snow.  Mostly cloudy, with a high near 38. Chance of precipitation is 50%. New snow accumulation of less than a half inch possible.

    High: 38 °F

    Chance
    Rain/Snow

  • Thursday Night

    Thursday Night: A chance of rain and snow, mainly before 10pm.  Mostly cloudy, with a low around 33. Chance of precipitation is 40%.

    Low: 33 °F

    Chance
    Rain/Snow

  • Friday

    Friday: A 10 percent chance of rain after 4pm.  Mostly cloudy, with a high near 39.

    High: 39 °F

    Mostly Cloudy
    then Slight
    Chance Rain

Detailed Forecast

This Afternoon
Rain and snow, becoming all rain after 1pm. High near 38. South wind 6 to 8 mph. Chance of precipitation is 90%. Total daytime snow accumulation of less than a half inch possible.
Tonight
Rain, possibly mixed with snow, mainly before 1am. Low around 32. West wind 11 to 15 mph, with gusts as high as 24 mph. Chance of precipitation is 80%. Little or no snow accumulation expected.
Tuesday
A 30 percent chance of snow after 10am. Increasing clouds, with a high near 37. West wind 6 to 10 mph. New snow accumulation of less than one inch possible.
Tuesday Night
Snow. Low around 31. West wind around 6 mph. Chance of precipitation is 90%. New snow accumulation of 3 to 5 inches possible.
Wednesday
Rain and snow likely before 10am, then rain likely between 10am and 4pm, then rain likely, possibly mixed with snow after 4pm. Mostly cloudy, with a high near 38. West wind around 7 mph. Chance of precipitation is 70%. New snow accumulation of less than a half inch possible.
Wednesday Night
Rain and snow likely. Mostly cloudy, with a low around 32. Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.
Thursday
A chance of rain and snow. Mostly cloudy, with a high near 38. Chance of precipitation is 50%. New snow accumulation of less than a half inch possible.
Thursday Night
A chance of rain and snow, mainly before 10pm. Mostly cloudy, with a low around 33. Chance of precipitation is 40%.
Friday
A 10 percent chance of rain after 4pm. Mostly cloudy, with a high near 39.
Friday Night
A 20 percent chance of rain before 10pm. Mostly cloudy, with a low around 33.
Saturday
A slight chance of rain and snow. Mostly cloudy, with a high near 37. Chance of precipitation is 20%.
Saturday Night
A chance of rain and snow. Mostly cloudy, with a low around 32. Chance of precipitation is 40%.
Sunday
A chance of rain and snow. Partly sunny, with a high near 36. Chance of precipitation is 30%.
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ABOUT THIS FORECAST

 
Point Forecast:
10 Miles E Twisp WA
 48.39°N 119.91°W (Elev. 3993 ft)
9:23 am PST Dec 8, 2025
12pm PST Dec 8, 2025-6pm PST Dec 14, 2025
 
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Additional Resources

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