Prolonged Atmospheric River in the Pacific Northwest; Snow and High Winds from the Upper Midwest into the Northeast

A prolonged atmospheric river will continue to impact the Pacific Northwest into the Northern Rockies with heavy rainfall, areas of urban and river flooding, landslides, heavy mountain snow, and gusty winds into Thursday. A strong clipper system will bring the threat of heavy snow and high winds across the Upper Midwest/Great Lakes as well as portions of the interior Northeast and Appalachians. Read More >

Current conditions at

STEHEKIN-AIRSTRIP (STRW1)

Lat: 48.34694°NLon: 120.72028°WElev: 1230.0ft.

NA

40°F

4°C

Humidity 96%
Wind Speed WNW 0 MPH
Barometer NA
Dewpoint 39°F (4°C)
Visibility NA
Last update 09 Dec 05:01 PM PST
Extended Forecast for

4 Miles W Washington Pass WA

Flood Watch December 9, 05:58pm until December 12, 07:00am
Click here for hazard details and duration
Flood Watch
  •  
    Flood Watch December 9, 05:58pm until December 12, 07:00am

    NOW until 7:00am Fri

    Flood Watch

  • This Afternoon

    High: 31 °F

    Heavy Snow

  • Tonight

    Tonight: Rain and snow, becoming all rain after 4am. The rain and snow could be heavy at times.  Temperature rising to around 36 by 4am. South wind 7 to 10 mph becoming southwest after midnight. Winds could gust as high as 20 mph.  Chance of precipitation is 100%. New snow accumulation of 7 to 11 inches possible.

    Low: 29 °F

    Heavy Snow
    then
    Rain/Snow

  • Wednesday

    Wednesday: Rain and snow, becoming all snow after 1pm. The rain and snow could be heavy at times.  High near 37. West wind 11 to 13 mph, with gusts as high as 21 mph.  Chance of precipitation is 100%. New snow accumulation of 4 to 8 inches possible.

    High: 37 °F

    Rain/Snow

  • Wednesday Night

    Wednesday Night: Snow. The snow could be heavy at times.  Low around 30. West wind 11 to 14 mph, with gusts as high as 22 mph.  Chance of precipitation is 100%. New snow accumulation of 9 to 13 inches possible.

    Low: 30 °F

    Heavy Snow

  • Thursday

    Thursday: Snow.  High near 33. West wind 10 to 13 mph, with gusts as high as 21 mph.  Chance of precipitation is 80%. New snow accumulation of 1 to 3 inches possible.

    High: 33 °F

    Snow

  • Thursday Night

    Thursday Night: Snow likely.  Mostly cloudy, with a low around 28. Chance of precipitation is 60%. New snow accumulation of 1 to 2 inches possible.

    Low: 28 °F

    Snow Likely

  • Friday

    Friday: Snow.  High near 34. Chance of precipitation is 80%. New snow accumulation of around an inch possible.

    High: 34 °F

    Snow

  • Friday Night

    Friday Night: Snow likely, mainly before 10pm.  Mostly cloudy, with a low around 30. Chance of precipitation is 60%.

    Low: 30 °F

    Snow Likely

Detailed Forecast

This Afternoon
Snow. The snow could be heavy at times. High near 31. Southeast wind around 6 mph. Chance of precipitation is 80%. Total daytime snow accumulation of 1 to 3 inches possible.
Tonight
Rain and snow, becoming all rain after 4am. The rain and snow could be heavy at times. Temperature rising to around 36 by 4am. South wind 7 to 10 mph becoming southwest after midnight. Winds could gust as high as 20 mph. Chance of precipitation is 100%. New snow accumulation of 7 to 11 inches possible.
Wednesday
Rain and snow, becoming all snow after 1pm. The rain and snow could be heavy at times. High near 37. West wind 11 to 13 mph, with gusts as high as 21 mph. Chance of precipitation is 100%. New snow accumulation of 4 to 8 inches possible.
Wednesday Night
Snow. The snow could be heavy at times. Low around 30. West wind 11 to 14 mph, with gusts as high as 22 mph. Chance of precipitation is 100%. New snow accumulation of 9 to 13 inches possible.
Thursday
Snow. High near 33. West wind 10 to 13 mph, with gusts as high as 21 mph. Chance of precipitation is 80%. New snow accumulation of 1 to 3 inches possible.
Thursday Night
Snow likely. Mostly cloudy, with a low around 28. Chance of precipitation is 60%. New snow accumulation of 1 to 2 inches possible.
Friday
Snow. High near 34. Chance of precipitation is 80%. New snow accumulation of around an inch possible.
Friday Night
Snow likely, mainly before 10pm. Mostly cloudy, with a low around 30. Chance of precipitation is 60%.
Saturday
A 40 percent chance of snow. Partly sunny, with a high near 34.
Saturday Night
Snow, mainly after 10pm. Low around 28. Chance of precipitation is 80%.
Sunday
Snow. High near 33. Chance of precipitation is 80%.
Sunday Night
Snow likely. Mostly cloudy, with a low around 27. Chance of precipitation is 70%.
Monday
Snow. The snow could be heavy at times. High near 34. Chance of precipitation is 90%.
Monday Night
Snow. The snow could be heavy at times. Low around 27. Chance of precipitation is 90%.
Tuesday
Snow. The snow could be heavy at times. High near 32. Chance of precipitation is 80%.
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ABOUT THIS FORECAST

 
Point Forecast:
4 Miles W Washington Pass WA
 48.51°N 120.74°W (Elev. 6024 ft)
5:48 pm PST Dec 9, 2025
5pm PST Dec 9, 2025-6pm PST Dec 16, 2025
 
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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