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 WNW 3 MPH
Barometer NA
Dewpoint 32°F (0°C)
Visibility NA
Last update 07 Dec 07:06 PM PST
Extended Forecast for

3 Miles SW Mazama WA

  • Tonight

    Tonight: A chance of rain and snow before 11pm, then snow likely.  Mostly cloudy, with a low around 32. North wind around 7 mph becoming southwest after midnight. Winds could gust as high as 20 mph.  Chance of precipitation is 70%. Total nighttime snow accumulation of less than a half inch possible.

    Low: 32 °F

    Chance
    Rain/Snow
    then Snow
    Likely

  • Monday

    Monday: Snow before 10am, then rain, possibly mixed with snow between 10am and 2pm, then rain after 2pm. The rain could be heavy at times.  High near 38. Southeast wind 5 to 7 mph becoming north in the afternoon.  Chance of precipitation is 100%. New snow accumulation of less than a half inch possible.

    High: 38 °F

    Rain/Snow

  • Monday Night

    Monday Night: Rain, possibly mixed with snow, mainly before 4am. The rain could be heavy at times.  Low around 33. Southwest wind around 11 mph, with gusts as high as 25 mph.  Chance of precipitation is 90%. New snow accumulation of less than a half inch possible.

    Low: 33 °F

    Rain/Snow

  • Tuesday

    Tuesday: A chance of rain and snow before 1pm, then a chance of rain between 1pm and 4pm, then a chance of rain and snow after 4pm.  Partly sunny, with a high near 38. West wind 6 to 10 mph.  Chance of precipitation is 50%. New snow accumulation of less than a half inch possible.

    High: 38 °F

    Chance
    Rain/Snow

  • Tuesday Night

    Tuesday Night: Rain, possibly mixed with snow, becoming all rain after 4am.  Low around 32. West wind 3 to 5 mph.  Chance of precipitation is 90%. New snow accumulation of less than one inch possible.

    Low: 32 °F

    Rain/Snow

  • Wednesday

    Wednesday: Rain, possibly mixed with snow before 1pm, then rain between 1pm and 4pm, then rain likely, possibly mixed with snow after 4pm.  High near 39. Chance of precipitation is 90%. New snow accumulation of less than a half inch possible.

    High: 39 °F

    Rain/Snow

  • Wednesday Night

    Wednesday Night: Rain and snow likely, mainly before 10pm.  Mostly cloudy, with a low around 31. Chance of precipitation is 60%. New snow accumulation of less than one inch possible.

    Low: 31 °F

    Rain/Snow
    Likely

  • Thursday

    Thursday: A chance of rain and snow.  Mostly cloudy, with a high near 38. Chance of precipitation is 50%.

    High: 38 °F

    Chance
    Rain/Snow

  • Thursday Night

    Thursday Night: Rain and snow likely.  Mostly cloudy, with a low around 33. Chance of precipitation is 60%.

    Low: 33 °F

    Rain/Snow
    Likely

Detailed Forecast

Tonight
A chance of rain and snow before 11pm, then snow likely. Mostly cloudy, with a low around 32. North wind around 7 mph becoming southwest after midnight. Winds could gust as high as 20 mph. Chance of precipitation is 70%. Total nighttime snow accumulation of less than a half inch possible.
Monday
Snow before 10am, then rain, possibly mixed with snow between 10am and 2pm, then rain after 2pm. The rain could be heavy at times. High near 38. Southeast wind 5 to 7 mph becoming north in the afternoon. Chance of precipitation is 100%. New snow accumulation of less than a half inch possible.
Monday Night
Rain, possibly mixed with snow, mainly before 4am. The rain could be heavy at times. Low around 33. Southwest wind around 11 mph, with gusts as high as 25 mph. Chance of precipitation is 90%. New snow accumulation of less than a half inch possible.
Tuesday
A chance of rain and snow before 1pm, then a chance of rain between 1pm and 4pm, then a chance of rain and snow after 4pm. Partly sunny, with a high near 38. West wind 6 to 10 mph. Chance of precipitation is 50%. New snow accumulation of less than a half inch possible.
Tuesday Night
Rain, possibly mixed with snow, becoming all rain after 4am. Low around 32. West wind 3 to 5 mph. Chance of precipitation is 90%. New snow accumulation of less than one inch possible.
Wednesday
Rain, possibly mixed with snow before 1pm, then rain between 1pm and 4pm, then rain likely, possibly mixed with snow after 4pm. High near 39. Chance of precipitation is 90%. New snow accumulation of less than a half inch possible.
Wednesday Night
Rain and snow likely, mainly before 10pm. Mostly cloudy, with a low around 31. Chance of precipitation is 60%. New snow accumulation of less than one inch possible.
Thursday
A chance of rain and snow. Mostly cloudy, with a high near 38. Chance of precipitation is 50%.
Thursday Night
Rain and snow likely. Mostly cloudy, with a low around 33. Chance of precipitation is 60%.
Friday
Rain and snow likely before 1pm, then a chance of rain between 1pm and 4pm, then a chance of rain and snow after 4pm. Mostly cloudy, with a high near 41. Chance of precipitation is 60%.
Friday Night
A chance of rain and snow. Mostly cloudy, with a low around 35. Chance of precipitation is 50%.
Saturday
Rain and snow likely. Mostly cloudy, with a high near 41. Chance of precipitation is 60%.
Saturday Night
Rain and snow likely. Mostly cloudy, with a low around 33. Chance of precipitation is 70%.
Sunday
Rain and snow likely. Mostly cloudy, with a high near 39. Chance of precipitation is 60%.
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles SW Mazama WA
 48.57°N 120.47°W (Elev. 3199 ft)
2:48 pm PST Dec 7, 2025
7pm PST Dec 7, 2025-6pm PST Dec 14, 2025
 
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Additional Resources

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