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 NNE 0 MPH
Barometer NA
Dewpoint 39°F (4°C)
Visibility NA
Last update 09 Dec 07:01 PM PST
Extended Forecast for

13 Miles NW Mazama WA

  • Tonight

    Tonight: Snow before 3am, then rain, possibly mixed with snow. The rain and snow could be heavy at times.  Temperature rising to around 33 by 4am. Southeast wind 11 to 15 mph becoming west after midnight. Winds could gust as high as 25 mph.  Chance of precipitation is 100%. Total nighttime snow accumulation of 7 to 11 inches possible.

    Low: 24 °F

    Heavy Snow
    then
    Rain/Snow

  • Wednesday

    Wednesday: Snow, possibly mixed with rain, becoming all snow after 1pm. The rain and snow could be heavy at times.  High near 33. West wind around 13 mph, with gusts as high as 21 mph.  Chance of precipitation is 100%. New snow accumulation of 10 to 14 inches possible.

    High: 33 °F

    Rain/Snow

  • Wednesday Night

    Wednesday Night: Snow. The snow could be heavy at times.  Low around 25. West wind 10 to 16 mph, with gusts as high as 26 mph.  Chance of precipitation is 100%. New snow accumulation of 14 to 20 inches possible.

    Low: 25 °F

    Heavy Snow

  • Thursday

    Thursday: Snow, mainly before 4pm.  High near 27. West wind 13 to 16 mph, with gusts as high as 26 mph.  Chance of precipitation is 80%. New snow accumulation of 1 to 3 inches possible.

    High: 27 °F

    Snow

  • Thursday Night

    Thursday Night: Snow likely, mainly after 10pm.  Mostly cloudy, with a low around 24. West wind around 9 mph.  Chance of precipitation is 60%. New snow accumulation of 1 to 2 inches possible.

    Low: 24 °F

    Snow Likely

  • Friday

    Friday: Snow.  High near 29. Chance of precipitation is 80%. New snow accumulation of 1 to 3 inches possible.

    High: 29 °F

    Snow

  • Friday Night

    Friday Night: Snow likely, mainly before 10pm.  Mostly cloudy, with a low around 25. Chance of precipitation is 60%. New snow accumulation of around an inch possible.

    Low: 25 °F

    Snow Likely

  • Saturday

    Saturday: A 40 percent chance of snow.  Mostly cloudy, with a high near 28.

    High: 28 °F

    Chance Snow

  • Saturday Night

    Saturday Night: Snow, mainly after 10pm.  Low around 25. Chance of precipitation is 80%.

    Low: 25 °F

    Snow

Detailed Forecast

Tonight
Snow before 3am, then rain, possibly mixed with snow. The rain and snow could be heavy at times. Temperature rising to around 33 by 4am. Southeast wind 11 to 15 mph becoming west after midnight. Winds could gust as high as 25 mph. Chance of precipitation is 100%. Total nighttime snow accumulation of 7 to 11 inches possible.
Wednesday
Snow, possibly mixed with rain, becoming all snow after 1pm. The rain and snow could be heavy at times. High near 33. West wind around 13 mph, with gusts as high as 21 mph. Chance of precipitation is 100%. New snow accumulation of 10 to 14 inches possible.
Wednesday Night
Snow. The snow could be heavy at times. Low around 25. West wind 10 to 16 mph, with gusts as high as 26 mph. Chance of precipitation is 100%. New snow accumulation of 14 to 20 inches possible.
Thursday
Snow, mainly before 4pm. High near 27. West wind 13 to 16 mph, with gusts as high as 26 mph. Chance of precipitation is 80%. New snow accumulation of 1 to 3 inches possible.
Thursday Night
Snow likely, mainly after 10pm. Mostly cloudy, with a low around 24. West wind around 9 mph. Chance of precipitation is 60%. New snow accumulation of 1 to 2 inches possible.
Friday
Snow. High near 29. Chance of precipitation is 80%. New snow accumulation of 1 to 3 inches possible.
Friday Night
Snow likely, mainly before 10pm. Mostly cloudy, with a low around 25. Chance of precipitation is 60%. New snow accumulation of around an inch possible.
Saturday
A 40 percent chance of snow. Mostly cloudy, with a high near 28.
Saturday Night
Snow, mainly after 10pm. Low around 25. Chance of precipitation is 80%.
Sunday
Snow. High near 28. Chance of precipitation is 80%.
Sunday Night
Snow likely. Mostly cloudy, with a low around 23. Chance of precipitation is 70%.
Monday
Snow. The snow could be heavy at times. High near 28. Chance of precipitation is 90%.
Monday Night
Snow. The snow could be heavy at times. Low around 24. Chance of precipitation is 90%.
Tuesday
Snow. The snow could be heavy at times. High near 26. Chance of precipitation is 80%.
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ABOUT THIS FORECAST

 
Point Forecast:
13 Miles NW Mazama WA
 48.71°N 120.67°W (Elev. 6266 ft)
5:48 pm PST Dec 9, 2025
8pm 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