Prolonged Atmospheric River Will Impact the Northwest Early this Week

A weather system in the Pacific Northwest will produce rain throughout the day, before a potent atmospheric river produces a prolonged round of heavy rainfall, widespread urban and river flooding, and high elevation snow to the region Monday through Wednesday. Showers and thunderstorms may produce isolated damaging winds, a brief tornado, and locally heavy rainfall across parts of Florida today. Read More >

Hazardous Weather Conditions

Current conditions at

NCSB (NCSW1)

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

NA

32°F

0°C

Humidity 100%
Wind Speed NW 1 MPH
Barometer NA
Dewpoint 32°F (0°C)
Visibility NA
Last update 07 Dec 08:06 PM PST
Extended Forecast for

22 Miles NNE Mazama WA

  • Tonight

    Tonight: Snow likely, mainly between 1am and 4am.  Mostly cloudy, with a low around 22. West wind around 17 mph, with gusts as high as 31 mph.  Chance of precipitation is 70%. Total nighttime snow accumulation of less than one inch possible.

    Low: 22 °F

    Chance Snow
    then Snow
    Likely

  • Monday

    Monday: Snow, mainly after 7am. The snow could be heavy at times.  High near 28. Southwest wind 15 to 17 mph, with gusts as high as 29 mph.  Chance of precipitation is 100%. New snow accumulation of 4 to 8 inches possible.

    High: 28 °F

    Heavy Snow

  • Monday Night

    Monday Night: Snow. The snow could be heavy at times.  Low around 22. Windy, with a west wind 22 to 25 mph, with gusts as high as 41 mph.  Chance of precipitation is 90%. New snow accumulation of 3 to 7 inches possible.

    Low: 22 °F

    Heavy Snow
    and Windy

  • Tuesday

    Tuesday: A 40 percent chance of snow.  Mostly cloudy, with a high near 23. Breezy, with a west wind 17 to 22 mph decreasing to 11 to 16 mph in the afternoon. Winds could gust as high as 36 mph.  New snow accumulation of less than one inch possible.

    High: 23 °F

    Chance Snow
    and Breezy

  • Tuesday Night

    Tuesday Night: Snow.  Low around 21. Southwest wind 11 to 14 mph, with gusts as high as 25 mph.  Chance of precipitation is 90%. New snow accumulation of 3 to 7 inches possible.

    Low: 21 °F

    Snow

  • Wednesday

    Wednesday: Snow.  High near 26. Chance of precipitation is 90%. New snow accumulation of 1 to 2 inches possible.

    High: 26 °F

    Snow

  • Wednesday Night

    Wednesday Night: Snow likely, mainly before 10pm.  Mostly cloudy, with a low around 20. Chance of precipitation is 60%. New snow accumulation of 1 to 3 inches possible.

    Low: 20 °F

    Snow Likely

  • Thursday

    Thursday: A 50 percent chance of snow.  Mostly cloudy, with a high near 25.

    High: 25 °F

    Chance Snow

  • Thursday Night

    Thursday Night: Snow likely.  Mostly cloudy, with a low around 22. Chance of precipitation is 60%.

    Low: 22 °F

    Snow Likely

Detailed Forecast

Tonight
Snow likely, mainly between 1am and 4am. Mostly cloudy, with a low around 22. West wind around 17 mph, with gusts as high as 31 mph. Chance of precipitation is 70%. Total nighttime snow accumulation of less than one inch possible.
Monday
Snow, mainly after 7am. The snow could be heavy at times. High near 28. Southwest wind 15 to 17 mph, with gusts as high as 29 mph. Chance of precipitation is 100%. New snow accumulation of 4 to 8 inches possible.
Monday Night
Snow. The snow could be heavy at times. Low around 22. Windy, with a west wind 22 to 25 mph, with gusts as high as 41 mph. Chance of precipitation is 90%. New snow accumulation of 3 to 7 inches possible.
Tuesday
A 40 percent chance of snow. Mostly cloudy, with a high near 23. Breezy, with a west wind 17 to 22 mph decreasing to 11 to 16 mph in the afternoon. Winds could gust as high as 36 mph. New snow accumulation of less than one inch possible.
Tuesday Night
Snow. Low around 21. Southwest wind 11 to 14 mph, with gusts as high as 25 mph. Chance of precipitation is 90%. New snow accumulation of 3 to 7 inches possible.
Wednesday
Snow. High near 26. Chance of precipitation is 90%. New snow accumulation of 1 to 2 inches possible.
Wednesday Night
Snow likely, mainly before 10pm. Mostly cloudy, with a low around 20. Chance of precipitation is 60%. New snow accumulation of 1 to 3 inches possible.
Thursday
A 50 percent chance of snow. Mostly cloudy, with a high near 25.
Thursday Night
Snow likely. Mostly cloudy, with a low around 22. Chance of precipitation is 60%.
Friday
Snow likely, mainly before 10am. Mostly cloudy, with a high near 29. Chance of precipitation is 60%.
Friday Night
A 50 percent chance of snow. Mostly cloudy, with a low around 26.
Saturday
A 50 percent chance of snow. Mostly cloudy, with a high near 29.
Saturday Night
Snow likely. Mostly cloudy, with a low around 23. Chance of precipitation is 70%.
Sunday
Snow likely. Mostly cloudy, with a high near 25. Chance of precipitation is 60%.
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ABOUT THIS FORECAST

 
Point Forecast:
22 Miles NNE Mazama WA
 48.89°N 120.24°W (Elev. 7172 ft)
8:43 pm PST Dec 7, 2025
9pm PST Dec 7, 2025-6pm PST Dec 14, 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