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

GERBER RESERVOIR (GRBO3)

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

NA

38°F

3°C

Humidity 85%
Wind Speed SSE 7 MPH
Barometer NA
Dewpoint 34°F (1°C)
Visibility NA
Wind Chill33°F (1°C)
Last update 24 Dec 05:45 PM PST
Extended Forecast for

10 Miles NE Bly OR

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

  • Tonight

    Tonight: Snow likely, mainly after 5am. Mostly cloudy, with a steady temperature around 28. Breezy, with a south southeast wind 17 to 22 mph increasing to 23 to 28 mph after midnight. Winds could gust as high as 41 mph. Chance of precipitation is 60%. Total nighttime snow accumulation of 1 to 2 inches possible.

    Low: 28 °F

    Breezy.
    Mostly Cloudy
    then Snow
    Likely

  • Christmas Day

    Christmas Day: Snow, mainly after 2pm. The snow could be heavy at times. Temperature falling to around 24 by 10am. Windy, with a south southwest wind 39 to 49 mph, with gusts as high as 75 mph. Chance of precipitation is 80%. New snow accumulation of 1 to 3 inches possible.

    High: 30 °F⇓

    Heavy Snow
    and Windy

  • Thursday Night

    Thursday Night: Snow, mainly before 4am. Low around 23. Breezy, with a south wind 21 to 23 mph, with gusts as high as 34 mph. Chance of precipitation is 90%. New snow accumulation of 2 to 4 inches possible.

    Low: 23 °F

    Snow and
    Breezy

  • Friday

    Friday: Snow, mainly between 10am and 4pm. High near 24. Breezy, with a south southwest wind 24 to 29 mph, with gusts as high as 44 mph. Chance of precipitation is 80%. New snow accumulation of 1 to 3 inches possible.

    High: 24 °F

    Snow and
    Breezy

  • Friday Night

    Friday Night: A 50 percent chance of snow before 10pm. Mostly cloudy, with a low around 20. West southwest wind 16 to 21 mph, with gusts as high as 26 mph. New snow accumulation of less than one inch possible.

    Low: 20 °F

    Chance Snow
    then Mostly
    Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 22.

    High: 22 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 16.

    Low: 16 °F

    Partly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 27.

    High: 27 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 21.

    Low: 21 °F

    Mostly Clear

Detailed Forecast

Tonight
Snow likely, mainly after 5am. Mostly cloudy, with a steady temperature around 28. Breezy, with a south southeast wind 17 to 22 mph increasing to 23 to 28 mph after midnight. Winds could gust as high as 41 mph. Chance of precipitation is 60%. Total nighttime snow accumulation of 1 to 2 inches possible.
Christmas Day
Snow, mainly after 2pm. The snow could be heavy at times. Temperature falling to around 24 by 10am. Windy, with a south southwest wind 39 to 49 mph, with gusts as high as 75 mph. Chance of precipitation is 80%. New snow accumulation of 1 to 3 inches possible.
Thursday Night
Snow, mainly before 4am. Low around 23. Breezy, with a south wind 21 to 23 mph, with gusts as high as 34 mph. Chance of precipitation is 90%. New snow accumulation of 2 to 4 inches possible.
Friday
Snow, mainly between 10am and 4pm. High near 24. Breezy, with a south southwest wind 24 to 29 mph, with gusts as high as 44 mph. Chance of precipitation is 80%. New snow accumulation of 1 to 3 inches possible.
Friday Night
A 50 percent chance of snow before 10pm. Mostly cloudy, with a low around 20. West southwest wind 16 to 21 mph, with gusts as high as 26 mph. New snow accumulation of less than one inch possible.
Saturday
Mostly sunny, with a high near 22.
Saturday Night
Partly cloudy, with a low around 16.
Sunday
Mostly sunny, with a high near 27.
Sunday Night
Mostly clear, with a low around 21.
Monday
Sunny, with a high near 33.
Monday Night
Mostly clear, with a low around 26.
Tuesday
Sunny, with a high near 37.
Tuesday Night
Mostly clear, with a low around 28.
Wednesday
Sunny, with a high near 37.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
10 Miles NE Bly OR
 42.49°N 120.88°W (Elev. 8196 ft)
Last Update:
5:21 pm PST Dec 24, 2025
Forecast Valid:
6pm PST Dec 24, 2025-6pm PST Dec 31, 2025
 
Forecast Discussion
 
Get as KML Get as XML

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation