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

35°F

2°C

Humidity 97%
Wind Speed N 1 MPH
Barometer NA
Dewpoint 34°F (1°C)
Visibility NA
Last update 07 Dec 01:06 PM PST
Extended Forecast for

10 Miles NNW Mazama WA

  • This Afternoon

    This Afternoon: Snow likely.  Mostly cloudy, with a high near 29. Southwest wind 9 to 11 mph.  Chance of precipitation is 60%. Total daytime snow accumulation of 2 to 4 inches possible.

    High: 29 °F

    Snow Likely

  • Tonight

    Tonight: Snow, mainly before 4am.  Low around 27. Breezy, with a southwest wind around 18 mph.  Chance of precipitation is 80%. New snow accumulation of less than one inch possible.

    Low: 27 °F

    Snow and
    Breezy

  • Monday

    Monday: Snow, mainly after 7am. The snow could be heavy at times.  High near 32. Southwest wind 11 to 14 mph.  Chance of precipitation is 100%. New snow accumulation of 3 to 7 inches possible.

    High: 32 °F

    Heavy Snow

  • Monday Night

    Monday Night: Snow before 7pm, then rain and snow between 7pm and 8pm, then snow after 8pm. The rain and snow could be heavy at times.  Low around 25. Windy, with a west wind 22 to 26 mph, with gusts as high as 43 mph.  Chance of precipitation is 90%. New snow accumulation of 3 to 5 inches possible.

    Low: 25 °F

    Rain/Snow and
    Breezy then
    Snow and
    Windy

  • Tuesday

    Tuesday: Snow, mainly after 10am.  High near 27. Breezy, with a west wind 17 to 22 mph decreasing to 10 to 15 mph in the afternoon. Winds could gust as high as 36 mph.  Chance of precipitation is 80%. New snow accumulation of around an inch possible.

    High: 27 °F

    Snow and
    Breezy

  • Tuesday Night

    Tuesday Night: Snow. The snow could be heavy at times.  Low around 25. Chance of precipitation is 90%. New snow accumulation of 4 to 8 inches possible.

    Low: 25 °F

    Heavy Snow

  • Wednesday

    Wednesday: Snow.  High near 29. Chance of precipitation is 90%. New snow accumulation of 2 to 4 inches possible.

    High: 29 °F

    Snow

  • Wednesday Night

    Wednesday Night: Snow likely, mainly before 10pm.  Mostly cloudy, with a low around 24. Chance of precipitation is 60%.

    Low: 24 °F

    Snow Likely

  • Thursday

    Thursday: Snow likely, mainly after 10am.  Mostly cloudy, with a high near 28. Chance of precipitation is 60%.

    High: 28 °F

    Snow Likely

Detailed Forecast

This Afternoon
Snow likely. Mostly cloudy, with a high near 29. Southwest wind 9 to 11 mph. Chance of precipitation is 60%. Total daytime snow accumulation of 2 to 4 inches possible.
Tonight
Snow, mainly before 4am. Low around 27. Breezy, with a southwest wind around 18 mph. Chance of precipitation is 80%. New snow accumulation of less than one inch possible.
Monday
Snow, mainly after 7am. The snow could be heavy at times. High near 32. Southwest wind 11 to 14 mph. Chance of precipitation is 100%. New snow accumulation of 3 to 7 inches possible.
Monday Night
Snow before 7pm, then rain and snow between 7pm and 8pm, then snow after 8pm. The rain and snow could be heavy at times. Low around 25. Windy, with a west wind 22 to 26 mph, with gusts as high as 43 mph. Chance of precipitation is 90%. New snow accumulation of 3 to 5 inches possible.
Tuesday
Snow, mainly after 10am. High near 27. Breezy, with a west wind 17 to 22 mph decreasing to 10 to 15 mph in the afternoon. Winds could gust as high as 36 mph. Chance of precipitation is 80%. New snow accumulation of around an inch possible.
Tuesday Night
Snow. The snow could be heavy at times. Low around 25. Chance of precipitation is 90%. New snow accumulation of 4 to 8 inches possible.
Wednesday
Snow. High near 29. Chance of precipitation is 90%. New snow accumulation of 2 to 4 inches possible.
Wednesday Night
Snow likely, mainly before 10pm. Mostly cloudy, with a low around 24. Chance of precipitation is 60%.
Thursday
Snow likely, mainly after 10am. Mostly cloudy, with a high near 28. Chance of precipitation is 60%.
Thursday Night
Snow likely. Mostly cloudy, with a low around 26. Chance of precipitation is 60%.
Friday
Snow likely. Mostly cloudy, with a high near 32. Chance of precipitation is 60%.
Friday Night
A 50 percent chance of snow. Mostly cloudy, with a low around 29.
Saturday
Snow likely. Mostly cloudy, with a high near 32. Chance of precipitation is 60%.
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ABOUT THIS FORECAST

 
Point Forecast:
10 Miles NNW Mazama WA
 48.74°N 120.49°W (Elev. 5673 ft)
1:21 pm PST Dec 7, 2025
1pm PST Dec 7, 2025-6pm PST Dec 13, 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