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

NCSB (NCSW1)

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

NA

32°F

0°C

Humidity 100%
Wind Speed NW 0 MPH
Barometer NA
Dewpoint 32°F (0°C)
Visibility NA
Last update 10 Dec 12:06 AM PST
Extended Forecast for

23 Miles NNE Mazama WA

  • Overnight

    Overnight: Snow. The snow could be heavy at times.  Temperature rising to around 32 by 5am. West wind 15 to 17 mph, with gusts as high as 33 mph.  Chance of precipitation is 100%. Total nighttime snow accumulation of 5 to 9 inches possible.

    Low: 25 °F

    Heavy Snow

  • Wednesday

    Wednesday: Snow. The snow could be heavy at times.  High near 32. Breezy, with a west wind 17 to 21 mph, with gusts as high as 33 mph.  Chance of precipitation is 100%. New snow accumulation of 6 to 10 inches possible.

    High: 32 °F

    Heavy Snow
    and Breezy

  • Wednesday Night

    Wednesday Night: Snow. The snow could be heavy at times.  Low around 23. Breezy, with a west wind 15 to 18 mph, with gusts as high as 30 mph.  Chance of precipitation is 100%. New snow accumulation of 4 to 8 inches possible.

    Low: 23 °F

    Heavy Snow
    and Breezy

  • Thursday

    Thursday: Snow likely before 7am.  Mostly cloudy, with a high near 27. West wind 13 to 16 mph, with gusts as high as 29 mph.  Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.

    High: 27 °F

    Snow Likely
    then Mostly
    Cloudy

  • Thursday Night

    Thursday Night: A 50 percent chance of snow.  Mostly cloudy, with a low around 22. Northwest wind 7 to 9 mph.  New snow accumulation of less than a half inch possible.

    Low: 22 °F

    Chance Snow

  • Friday

    Friday: Snow likely.  Mostly cloudy, with a high near 29. Chance of precipitation is 70%. New snow accumulation of less than one inch possible.

    High: 29 °F

    Snow Likely

  • Friday Night

    Friday Night: Snow likely, mainly before 10pm.  Mostly cloudy, with a low around 26. Chance of precipitation is 60%. New snow accumulation of less than one inch possible.

    Low: 26 °F

    Snow Likely

  • Saturday

    Saturday: A 30 percent chance of snow, mainly before 10am.  Mostly cloudy, with a high near 28.

    High: 28 °F

    Chance Snow

  • Saturday Night

    Saturday Night: A 50 percent chance of snow.  Mostly cloudy, with a low around 24.

    Low: 24 °F

    Chance Snow

Detailed Forecast

Overnight
Snow. The snow could be heavy at times. Temperature rising to around 32 by 5am. West wind 15 to 17 mph, with gusts as high as 33 mph. Chance of precipitation is 100%. Total nighttime snow accumulation of 5 to 9 inches possible.
Wednesday
Snow. The snow could be heavy at times. High near 32. Breezy, with a west wind 17 to 21 mph, with gusts as high as 33 mph. Chance of precipitation is 100%. New snow accumulation of 6 to 10 inches possible.
Wednesday Night
Snow. The snow could be heavy at times. Low around 23. Breezy, with a west wind 15 to 18 mph, with gusts as high as 30 mph. Chance of precipitation is 100%. New snow accumulation of 4 to 8 inches possible.
Thursday
Snow likely before 7am. Mostly cloudy, with a high near 27. West wind 13 to 16 mph, with gusts as high as 29 mph. Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.
Thursday Night
A 50 percent chance of snow. Mostly cloudy, with a low around 22. Northwest wind 7 to 9 mph. New snow accumulation of less than a half inch possible.
Friday
Snow likely. Mostly cloudy, with a high near 29. Chance of precipitation is 70%. New snow accumulation of less than one inch possible.
Friday Night
Snow likely, mainly before 10pm. Mostly cloudy, with a low around 26. Chance of precipitation is 60%. New snow accumulation of less than one inch possible.
Saturday
A 30 percent chance of snow, mainly before 10am. Mostly cloudy, with a high near 28.
Saturday Night
A 50 percent chance of snow. Mostly cloudy, with a low around 24.
Sunday
Snow likely. Mostly cloudy, with a high near 28. Chance of precipitation is 60%.
Sunday Night
Snow likely. Mostly cloudy, with a low around 25. Chance of precipitation is 60%.
Monday
Snow. The snow could be heavy at times. High near 28. Chance of precipitation is 80%.
Monday Night
Snow. The snow could be heavy at times. Low around 21. Chance of precipitation is 90%.
Tuesday
Snow. High near 24. Chance of precipitation is 80%.
Basemap Options
Click map to change the forecast location
Loading map...

ABOUT THIS FORECAST

 
Point Forecast:
23 Miles NNE Mazama WA
 48.92°N 120.25°W (Elev. 7149 ft)
12:07 am PST Dec 10, 2025
12am PST Dec 10, 2025-6pm PST Dec 16, 2025
 
Get as KML Get as XML

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database