National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Atmospheric River Bringing Heavy Rain to Southern California and Heavy Snow to the Sierra Nevadas

A strong atmospheric river will continue heavy rain over southern California through Friday. The heaviest rainfall is ongoing today in the Los Angeles Basin. Flash and urban flooding is possible. A prolonged heavy snowfall has begun over the Sierra Nevada Mountains and will continue through Friday. Travel will become increasingly difficult over the passes due to snow and strong winds. Read More >

Hazardous Weather Conditions

Current conditions at

SAWMILL FLATS (MEFW1)

Lat: 46.9675°NLon: 121.08444°WElev: 3000.0ft.

NA

32°F

0°C

Humidity 100%
Wind Speed E 0 MPH
Barometer NA
Dewpoint 32°F (0°C)
Visibility NA
Last update 25 Dec 09:25 AM PST
Extended Forecast for

White Pass WA

Winter Weather Advisory December 26, 04:00am until December 27, 07:00am
Click here for hazard details and duration
Winter Weather Advisory

  • Christmas Day

    Christmas Day: Snow, mainly before 1pm. High near 33. East wind 6 to 9 mph becoming south in the afternoon. Winds could gust as high as 21 mph. Chance of precipitation is 90%. Total daytime snow accumulation of less than one inch possible.

    High: 33 °F

    Snow

  • Tonight

    Tonight: A chance of snow before 10pm, then a chance of snow after 1am. Mostly cloudy, with a low around 23. West wind around 6 mph. Chance of precipitation is 30%.

    Low: 23 °F

    Chance Snow

  • Friday

    Friday: Snow, mainly after 7am. High near 29. West wind 8 to 13 mph, with gusts as high as 31 mph. Chance of precipitation is 90%. New snow accumulation of 3 to 5 inches possible.

    High: 29 °F

    Snow

  • Friday Night

    Friday Night: Snow, mainly before 4am. Low around 18. West wind around 18 mph, with gusts as high as 43 mph. Chance of precipitation is 90%. New snow accumulation of 2 to 4 inches possible.

    Low: 18 °F

    Snow then
    Snow Likely

  • Saturday

    Saturday: A 20 percent chance of snow before 10am. Mostly cloudy, with a high near 22. West wind 6 to 11 mph, with gusts as high as 26 mph.

    High: 22 °F

    Slight Chance
    Snow then
    Partly Sunny

  • Saturday Night

    Saturday Night: Patchy fog after 4am. Otherwise, mostly cloudy, with a low around 16.

    Low: 16 °F

    Mostly Cloudy
    then Patchy
    Fog

  • Sunday

    Sunday: Patchy fog before 10am, then patchy fog after 4pm. Otherwise, partly sunny, with a high near 30.

    High: 30 °F

    Patchy Fog

  • Sunday Night

    Sunday Night: Patchy fog before 7pm. Otherwise, mostly cloudy, with a low around 21.

    Low: 21 °F

    Patchy Fog
    then Mostly
    Cloudy

  • Monday

    Monday: Mostly cloudy, with a high near 34.

    High: 34 °F

    Mostly Cloudy

Detailed Forecast

Christmas Day
Snow, mainly before 1pm. High near 33. East wind 6 to 9 mph becoming south in the afternoon. Winds could gust as high as 21 mph. Chance of precipitation is 90%. Total daytime snow accumulation of less than one inch possible.
Tonight
A chance of snow before 10pm, then a chance of snow after 1am. Mostly cloudy, with a low around 23. West wind around 6 mph. Chance of precipitation is 30%.
Friday
Snow, mainly after 7am. High near 29. West wind 8 to 13 mph, with gusts as high as 31 mph. Chance of precipitation is 90%. New snow accumulation of 3 to 5 inches possible.
Friday Night
Snow, mainly before 4am. Low around 18. West wind around 18 mph, with gusts as high as 43 mph. Chance of precipitation is 90%. New snow accumulation of 2 to 4 inches possible.
Saturday
A 20 percent chance of snow before 10am. Mostly cloudy, with a high near 22. West wind 6 to 11 mph, with gusts as high as 26 mph.
Saturday Night
Patchy fog after 4am. Otherwise, mostly cloudy, with a low around 16.
Sunday
Patchy fog before 10am, then patchy fog after 4pm. Otherwise, partly sunny, with a high near 30.
Sunday Night
Patchy fog before 7pm. Otherwise, mostly cloudy, with a low around 21.
Monday
Mostly cloudy, with a high near 34.
Monday Night
Mostly cloudy, with a low around 26.
Tuesday
Mostly cloudy, with a high near 38.
Tuesday Night
A slight chance of rain and snow. Mostly cloudy, with a low around 29.
Wednesday
A chance of rain and snow. Mostly cloudy, with a high near 37.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
White Pass WA
 46.64°N 121.37°W (Elev. 4672 ft)
Last Update:
9:32 am PST Dec 25, 2025
Forecast Valid:
9am PST Dec 25, 2025-6pm PST Dec 31, 2025
 
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Additional Resources

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Chance of Precipitation