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 >

Current conditions at

MANZANITA LAKE (VIOC1)

Lat: 40.54011°NLon: 121.58016°WElev: 5732.0ft.

NA

27°F

-3°C

Humidity 93%
Wind Speed S 0 MPH
Barometer NA
Dewpoint 25°F (-4°C)
Visibility NA
Last update 26 Dec 01:52 AM PST
Extended Forecast for

20 Miles NNW Chester CA

Winter Storm Warning December 26, 02:08am until December 26, 10:00pm
Click here for hazard details and duration
Winter Storm Warning
  •  
    Winter Storm Warning December 26, 02:08am until December 26, 10:00pm

    NOW until 10:00pm Fri

    Winter Storm Warning

  • Overnight

    Low: 20 °F

    Snow Likely
    and Windy

  • Friday

    Friday: Snow. The snow could be heavy at times.  High near 25. Windy, with a south southwest wind 25 to 30 mph decreasing to 18 to 23 mph in the afternoon. Winds could gust as high as 55 mph.  Chance of precipitation is 90%. New snow accumulation of 3 to 5 inches possible.

    High: 25 °F

    Snow Likely
    and Windy
    then Heavy
    Snow and
    Breezy

  • Friday Night

    Friday Night: Snow likely before 3am, then a chance of snow after 4am.  Mostly cloudy, with a low around 17. Southwest wind 14 to 18 mph, with gusts as high as 32 mph.  Chance of precipitation is 60%. New snow accumulation of 1 to 3 inches possible.

    Low: 17 °F

    Snow Likely

  • Saturday

    Saturday: A 40 percent chance of snow, mainly before 10am.  Mostly sunny, with a high near 25. Calm wind becoming north northwest around 5 mph in the afternoon.  New snow accumulation of less than a half inch possible.

    High: 25 °F

    Chance Snow

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 12. East wind 7 to 9 mph.

    Low: 12 °F

    Partly Cloudy

  • Sunday

    Sunday: Sunny, with a high near 29.

    High: 29 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 16.

    Low: 16 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 32.

    High: 32 °F

    Sunny

Detailed Forecast

Overnight
Snow likely, mainly between 4am and 5am. Mostly cloudy, with a low around 20. Windy, with a south southwest wind around 33 mph, with gusts as high as 60 mph. Chance of precipitation is 60%. Total nighttime snow accumulation of 7 to 11 inches possible.
Friday
Snow. The snow could be heavy at times. High near 25. Windy, with a south southwest wind 25 to 30 mph decreasing to 18 to 23 mph in the afternoon. Winds could gust as high as 55 mph. Chance of precipitation is 90%. New snow accumulation of 3 to 5 inches possible.
Friday Night
Snow likely before 3am, then a chance of snow after 4am. Mostly cloudy, with a low around 17. Southwest wind 14 to 18 mph, with gusts as high as 32 mph. Chance of precipitation is 60%. New snow accumulation of 1 to 3 inches possible.
Saturday
A 40 percent chance of snow, mainly before 10am. Mostly sunny, with a high near 25. Calm wind becoming north northwest around 5 mph in the afternoon. New snow accumulation of less than a half inch possible.
Saturday Night
Partly cloudy, with a low around 12. East wind 7 to 9 mph.
Sunday
Sunny, with a high near 29.
Sunday Night
Mostly clear, with a low around 16.
Monday
Sunny, with a high near 32.
Monday Night
Mostly clear, with a low around 21.
Tuesday
Sunny, with a high near 38.
Tuesday Night
Mostly clear, with a low around 25.
Wednesday
Mostly sunny, with a high near 38.
Wednesday Night
A slight chance of snow. Mostly cloudy, with a low around 25.
New Year's Day
Snow likely. Partly sunny, with a high near 33.
Basemap Options
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ABOUT THIS FORECAST

 
Point Forecast:
20 Miles NNW Chester CA
 40.58°N 121.33°W (Elev. 7106 ft)
1:21 am PST Dec 26, 2025
2am PST Dec 26, 2025-6pm PST Jan 1, 2026
 
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