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

GERBER RESERVOIR (GRBO3)

Lat: 42.20597°NLon: 121.13806°WElev: 4950.0ft.

NA

39°F

4°C

Humidity 81%
Wind Speed S 10 MPH
Barometer NA
Dewpoint 34°F (1°C)
Visibility NA
Wind Chill32°F (0°C)
Last update 24 Dec 04:45 PM PST
Extended Forecast for

13 Miles SSW Bly OR

Wind Advisory December 25, 01:00am until December 25, 01:00pm
Click here for hazard details and duration
Wind Advisory
  • Tonight

    Tonight: Rain and snow likely, mainly after 1am.  Snow level 5000 feet rising to 5600 feet after midnight. Mostly cloudy, with a steady temperature around 36. South southeast wind 9 to 17 mph, with gusts as high as 26 mph.  Chance of precipitation is 60%. Little or no snow accumulation expected.

    Low: 36 °F

    Slight Chance
    Rain/Snow
    then
    Rain/Snow
    Likely

  • Christmas Day

    Christmas Day: Rain and snow, becoming all snow after 1pm.  High near 41. Breezy, with a south wind 22 to 25 mph, with gusts as high as 41 mph.  Chance of precipitation is 80%. New snow accumulation of less than a half inch possible.

    High: 41 °F

    Rain/Snow and
    Breezy

  • Thursday Night

    Thursday Night: Snow, mainly before 4am.  Low around 28. South southeast wind around 16 mph, with gusts as high as 24 mph.  Chance of precipitation is 90%. New snow accumulation of around an inch possible.

    Low: 28 °F

    Snow

  • Friday

    Friday: Snow likely, mainly between 10am and 4pm.  Mostly cloudy, with a high near 38. South southwest wind 15 to 17 mph, with gusts as high as 26 mph.  Chance of precipitation is 70%. New snow accumulation of less than a half inch possible.

    High: 38 °F

    Snow Likely

  • Friday Night

    Friday Night: A 40 percent chance of snow before 10pm.  Mostly cloudy, with a low around 22. Southwest wind 5 to 9 mph, with gusts as high as 20 mph.  New snow accumulation of less than a half inch possible.

    Low: 22 °F

    Chance Snow
    then Mostly
    Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 36.

    High: 36 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 15.

    Low: 15 °F

    Partly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 40.

    High: 40 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 19.

    Low: 19 °F

    Mostly Clear

Detailed Forecast

Tonight
Rain and snow likely, mainly after 1am. Snow level 5000 feet rising to 5600 feet after midnight. Mostly cloudy, with a steady temperature around 36. South southeast wind 9 to 17 mph, with gusts as high as 26 mph. Chance of precipitation is 60%. Little or no snow accumulation expected.
Christmas Day
Rain and snow, becoming all snow after 1pm. High near 41. Breezy, with a south wind 22 to 25 mph, with gusts as high as 41 mph. Chance of precipitation is 80%. New snow accumulation of less than a half inch possible.
Thursday Night
Snow, mainly before 4am. Low around 28. South southeast wind around 16 mph, with gusts as high as 24 mph. Chance of precipitation is 90%. New snow accumulation of around an inch possible.
Friday
Snow likely, mainly between 10am and 4pm. Mostly cloudy, with a high near 38. South southwest wind 15 to 17 mph, with gusts as high as 26 mph. Chance of precipitation is 70%. New snow accumulation of less than a half inch possible.
Friday Night
A 40 percent chance of snow before 10pm. Mostly cloudy, with a low around 22. Southwest wind 5 to 9 mph, with gusts as high as 20 mph. New snow accumulation of less than a half inch possible.
Saturday
Mostly sunny, with a high near 36.
Saturday Night
Partly cloudy, with a low around 15.
Sunday
Mostly sunny, with a high near 40.
Sunday Night
Mostly clear, with a low around 19.
Monday
Sunny, with a high near 45.
Monday Night
Mostly clear, with a low around 23.
Tuesday
Sunny, with a high near 49.
Tuesday Night
Mostly clear, with a low around 25.
Wednesday
Sunny, with a high near 49.
Basemap Options
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ABOUT THIS FORECAST

 
Point Forecast:
13 Miles SSW Bly OR
 42.23°N 121.14°W (Elev. 4954 ft)
5:21 pm PST Dec 24, 2025
5pm PST Dec 24, 2025-6pm PST Dec 31, 2025
 
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Additional Resources

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