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

SCE Camp Nelson (SE333)

Lat: 36.1402°NLon: 118.6159°WElev: 4836.0ft.

NA

42°F

6°C

Humidity 79%
Wind Speed ENE 0 MPH
Barometer NA
Dewpoint 36°F (2°C)
Visibility NA
Last update 25 Dec 10:50 AM PST
Extended Forecast for

25 Miles ENE Porterville CA

Flood Watch December 25, 11:13am until December 26, 04:00pm
Winter Storm Warning December 25, 11:13am until December 26, 10:00pm
Click here for hazard details and duration
Flood Watch
Winter Storm Warning
  •  
    Flood Watch December 25, 11:13am until December 26, 04:00pm
    Winter Storm Warning December 25, 11:13am until December 26, 10:00pm

    NOW: Multiple hazards in effect

    Click HERE for Details

  • Christmas Day

    High: 33 °F

    Snow

  • Tonight

    Tonight: Snow showers. Some thunder is also possible.  Steady temperature around 32. Wind chill values as low as 23. Southwest wind around 10 mph, with gusts as high as 20 mph.  Chance of precipitation is 100%. New snow accumulation of 5 to 9 inches possible.

    Low: 32 °F

    Snow Showers

  • Friday

    Friday: Snow showers before 1pm, then snow after 1pm. Some thunder is also possible.  Temperature falling to around 27 by 5pm. Wind chill values as low as 22. West wind 5 to 10 mph, with gusts as high as 15 mph.  Chance of precipitation is 90%. New snow accumulation of 4 to 8 inches possible.

    High: 32 °F

    Snow Showers

  • Friday Night

    Friday Night: Snow, mainly before 10pm.  Low around 22. Calm wind.  Chance of precipitation is 80%. New snow accumulation of 1 to 2 inches possible.

    Low: 22 °F

    Snow then
    Chance Snow

  • Saturday

    Saturday: A 30 percent chance of snow, mainly after 10am.  Mostly sunny and cold, with a high near 30. Calm wind becoming west southwest around 5 mph.  Little or no snow accumulation expected.

    High: 30 °F

    Chance Snow

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 23. West northwest wind around 5 mph becoming northeast in the evening.

    Low: 23 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 36. East wind around 5 mph becoming calm  in the afternoon.

    High: 36 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 26. Northeast wind around 10 mph, with gusts as high as 20 mph.

    Low: 26 °F

    Mostly Clear

Detailed Forecast

Christmas Day
Snow. High near 33. Wind chill values as low as 24. Southwest wind 5 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 100%. Total daytime snow accumulation of 6 to 10 inches possible.
Tonight
Snow showers. Some thunder is also possible. Steady temperature around 32. Wind chill values as low as 23. Southwest wind around 10 mph, with gusts as high as 20 mph. Chance of precipitation is 100%. New snow accumulation of 5 to 9 inches possible.
Friday
Snow showers before 1pm, then snow after 1pm. Some thunder is also possible. Temperature falling to around 27 by 5pm. Wind chill values as low as 22. West wind 5 to 10 mph, with gusts as high as 15 mph. Chance of precipitation is 90%. New snow accumulation of 4 to 8 inches possible.
Friday Night
Snow, mainly before 10pm. Low around 22. Calm wind. Chance of precipitation is 80%. New snow accumulation of 1 to 2 inches possible.
Saturday
A 30 percent chance of snow, mainly after 10am. Mostly sunny and cold, with a high near 30. Calm wind becoming west southwest around 5 mph. Little or no snow accumulation expected.
Saturday Night
Mostly clear, with a low around 23. West northwest wind around 5 mph becoming northeast in the evening.
Sunday
Sunny, with a high near 36. East wind around 5 mph becoming calm in the afternoon.
Sunday Night
Mostly clear, with a low around 26. Northeast wind around 10 mph, with gusts as high as 20 mph.
Monday
Sunny, with a high near 40. North wind 5 to 10 mph, with gusts as high as 15 mph.
Monday Night
Mostly clear, with a low around 32. Northeast wind around 10 mph, with gusts as high as 20 mph.
Tuesday
Sunny, with a high near 46. Northeast wind 5 to 10 mph becoming light and variable in the afternoon. Winds could gust as high as 15 mph.
Tuesday Night
Mostly clear, with a low around 36. Northeast wind 5 to 10 mph.
Wednesday
A slight chance of rain and snow. Mostly sunny, with a high near 47. Northeast wind around 5 mph becoming calm in the afternoon. Chance of precipitation is 20%.
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ABOUT THIS FORECAST

 
Point Forecast:
25 Miles ENE Porterville CA
 36.17°N 118.59°W (Elev. 7782 ft)
10:56 am PST Dec 25, 2025
11am PST Dec 25, 2025-6pm PST Dec 31, 2025
 
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