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

SUGARLOAF (SHF) (SLFC1)

Lat: 40.91596°NLon: 122.43483°WElev: 3259.0ft.

NA

41°F

5°C

Humidity 100%
Wind Speed WSW 32 MPH
Barometer NA
Dewpoint 41°F (5°C)
Visibility NA
Wind Chill29°F (-2°C)
Last update 25 Dec 04:19 AM PST
Extended Forecast for

13 Miles SE Trinity Center CA

Flood Watch December 25, 04:47am until December 26, 04:00pm
Winter Storm Warning until December 26, 10:00pm
Click here for hazard details and duration
Flood Watch
Winter Storm Warning
  •  
    Flood Watch December 25, 04:47am until December 26, 04:00pm
    Winter Storm Warning until December 26, 10:00pm

    NOW: Multiple hazards in effect

    Click HERE for Details

  • Overnight

    Low: 39 °F

    Rain and
    Windy

  • Christmas Day

    Christmas Day: Rain and snow before 2pm, then rain between 2pm and 3pm, then rain and snow after 3pm.  Steady temperature around 37. Windy, with a south southeast wind 22 to 31 mph, with gusts as high as 41 mph.  Chance of precipitation is 100%. Little or no snow accumulation expected.

    High: 37 °F

    Rain/Snow and
    Windy

  • Thursday Night

    Thursday Night: Rain and snow, becoming all snow after 10pm.  Steady temperature around 36. Breezy, with a south southeast wind 20 to 22 mph, with gusts as high as 30 mph.  Chance of precipitation is 90%. New snow accumulation of less than one inch possible.

    Low: 36 °F

    Rain/Snow and
    Breezy then
    Snow

  • Friday

    Friday: Snow.  High near 36. South southeast wind 13 to 20 mph, with gusts as high as 29 mph.  Chance of precipitation is 100%. New snow accumulation of 1 to 3 inches possible.

    High: 36 °F

    Snow

  • Friday Night

    Friday Night: Snow, mainly before 10pm.  Low around 30. Northwest wind around 6 mph.  Chance of precipitation is 80%. New snow accumulation of less than a half inch possible.

    Low: 30 °F

    Snow then
    Chance Snow

  • Saturday

    Saturday: A 30 percent chance of snow, mainly before 10am.  Mostly sunny, with a high near 38. New snow accumulation of less than a half inch possible.

    High: 38 °F

    Chance Snow

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 29.

    Low: 29 °F

    Partly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 42.

    High: 42 °F

    Mostly Sunny

Detailed Forecast

Overnight
Rain. Steady temperature around 39. Windy, with a south southeast wind around 31 mph, with gusts as high as 48 mph. Chance of precipitation is 100%. New precipitation amounts between a tenth and quarter of an inch possible.
Christmas Day
Rain and snow before 2pm, then rain between 2pm and 3pm, then rain and snow after 3pm. Steady temperature around 37. Windy, with a south southeast wind 22 to 31 mph, with gusts as high as 41 mph. Chance of precipitation is 100%. Little or no snow accumulation expected.
Thursday Night
Rain and snow, becoming all snow after 10pm. Steady temperature around 36. Breezy, with a south southeast wind 20 to 22 mph, with gusts as high as 30 mph. Chance of precipitation is 90%. New snow accumulation of less than one inch possible.
Friday
Snow. High near 36. South southeast wind 13 to 20 mph, with gusts as high as 29 mph. Chance of precipitation is 100%. New snow accumulation of 1 to 3 inches possible.
Friday Night
Snow, mainly before 10pm. Low around 30. Northwest wind around 6 mph. Chance of precipitation is 80%. New snow accumulation of less than a half inch possible.
Saturday
A 30 percent chance of snow, mainly before 10am. Mostly sunny, with a high near 38. New snow accumulation of less than a half inch possible.
Saturday Night
Partly cloudy, with a low around 29.
Sunday
Mostly sunny, with a high near 42.
Sunday Night
Mostly clear, with a low around 34.
Monday
Sunny, with a high near 47.
Monday Night
Mostly clear, with a low around 37.
Tuesday
Sunny, with a high near 50.
Tuesday Night
Mostly clear, with a low around 38.
Wednesday
Sunny, with a high near 49.
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ABOUT THIS FORECAST

 
Point Forecast:
13 Miles SE Trinity Center CA
 40.87°N 122.53°W (Elev. 4350 ft)
1:21 am PST Dec 25, 2025
4am PST Dec 25, 2025-6pm PST Dec 31, 2025
 
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Additional Resources

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