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

TUOLUMNE MEADOWS TUM (TUMC1)

Lat: 37.87639°NLon: 119.34806°WElev: 8654.0ft.

NA

32°F

0°C

Humidity 98%
Wind Speed NA NA MPH
Barometer NA
Dewpoint 32°F (0°C)
Visibility NA
Last update 24 Dec 06:00 AM PST
Extended Forecast for

11 Miles W Conway Summit CA

Flood Watch December 24, 06:45am until December 26, 04:00pm
Winter Storm Warning December 24, 06:45am until December 26, 10:00pm
Click here for hazard details and duration
Flood Watch
Winter Storm Warning
  •  
    Flood Watch December 24, 06:45am until December 26, 04:00pm
    Winter Storm Warning December 24, 06:45am until December 26, 10:00pm

    NOW: Multiple hazards in effect

    Click HERE for Details

  • Today

    High: 33 °F

    Heavy Snow
    and Windy

  • Tonight

    Tonight: Snow before 10pm, then snow showers between 10pm and 4am, then snow after 4am. Some thunder is also possible. Low around 18. Wind chill values as low as -1. Windy, with a south southwest wind 30 to 40 mph, with gusts as high as 55 mph. Chance of precipitation is 100%. New snow accumulation of 12 to 18 inches possible.

    Low: 18 °F

    Snow and
    Windy

  • Christmas Day

    Christmas Day: Snow before 1pm, then snow showers after 1pm. The snow could be heavy at times. Some thunder is also possible. High near 27. Wind chill values as low as -2. Windy, with a south southwest wind 35 to 40 mph, with gusts as high as 65 mph. Chance of precipitation is 100%. New snow accumulation of 17 to 23 inches possible.

    High: 27 °F

    Heavy Snow
    and Windy

  • Thursday Night

    Thursday Night: Snow before 10pm, then snow showers between 10pm and 4am, then snow after 4am. The snow could be heavy at times. Some thunder is also possible. Low around 15. Wind chill values as low as -4. Windy, with a south southwest wind 35 to 40 mph, with gusts as high as 60 mph. Chance of precipitation is 100%. New snow accumulation of 15 to 21 inches possible.

    Low: 15 °F

    Heavy Snow
    and Windy

  • Friday

    Friday: Snow. The snow could be heavy at times. High near 23. Windy, with a southwest wind 30 to 35 mph decreasing to 20 to 25 mph in the afternoon. Winds could gust as high as 55 mph. Chance of precipitation is 100%. New snow accumulation of 5 to 9 inches possible.

    High: 23 °F

    Heavy Snow
    and Windy

  • Friday Night

    Friday Night: Snow likely, mainly before 10pm. Mostly cloudy, with a low around 5. West southwest wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 70%. New snow accumulation of around an inch possible.

    Low: 5 °F

    Snow Likely
    then Chance
    Snow

  • Saturday

    Saturday: A 40 percent chance of snow, mainly before 4pm. Partly sunny and cold, with a high near 24. West northwest wind around 10 mph, with gusts as high as 15 mph. New snow accumulation of less than a half inch possible.

    High: 24 °F

    Chance Snow

  • Saturday Night

    Saturday Night: A 20 percent chance of snow before 10pm. Partly cloudy, with a low around 6. Blustery, with a northeast wind 20 to 25 mph, with gusts as high as 35 mph.

    Low: 6 °F

    Blustery.
    Slight Chance
    Snow then
    Mostly Clear

Detailed Forecast

Today
Snow before 1pm, then snow showers between 1pm and 4pm, then snow after 4pm. The snow could be heavy at times. Some thunder is also possible. High near 33. Wind chill values as low as 8. Windy, with a south southwest wind 25 to 30 mph decreasing to 20 to 25 mph in the afternoon. Winds could gust as high as 50 mph. Chance of precipitation is 100%. Total daytime snow accumulation of 20 to 26 inches possible.
Tonight
Snow before 10pm, then snow showers between 10pm and 4am, then snow after 4am. Some thunder is also possible. Low around 18. Wind chill values as low as -1. Windy, with a south southwest wind 30 to 40 mph, with gusts as high as 55 mph. Chance of precipitation is 100%. New snow accumulation of 12 to 18 inches possible.
Christmas Day
Snow before 1pm, then snow showers after 1pm. The snow could be heavy at times. Some thunder is also possible. High near 27. Wind chill values as low as -2. Windy, with a south southwest wind 35 to 40 mph, with gusts as high as 65 mph. Chance of precipitation is 100%. New snow accumulation of 17 to 23 inches possible.
Thursday Night
Snow before 10pm, then snow showers between 10pm and 4am, then snow after 4am. The snow could be heavy at times. Some thunder is also possible. Low around 15. Wind chill values as low as -4. Windy, with a south southwest wind 35 to 40 mph, with gusts as high as 60 mph. Chance of precipitation is 100%. New snow accumulation of 15 to 21 inches possible.
Friday
Snow. The snow could be heavy at times. High near 23. Windy, with a southwest wind 30 to 35 mph decreasing to 20 to 25 mph in the afternoon. Winds could gust as high as 55 mph. Chance of precipitation is 100%. New snow accumulation of 5 to 9 inches possible.
Friday Night
Snow likely, mainly before 10pm. Mostly cloudy, with a low around 5. West southwest wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 70%. New snow accumulation of around an inch possible.
Saturday
A 40 percent chance of snow, mainly before 4pm. Partly sunny and cold, with a high near 24. West northwest wind around 10 mph, with gusts as high as 15 mph. New snow accumulation of less than a half inch possible.
Saturday Night
A 20 percent chance of snow before 10pm. Partly cloudy, with a low around 6. Blustery, with a northeast wind 20 to 25 mph, with gusts as high as 35 mph.
Sunday
Sunny and cold, with a high near 28. Blustery, with a north northeast wind 15 to 20 mph, with gusts as high as 30 mph.
Sunday Night
Mostly clear, with a low around 10. Blustery, with a northeast wind around 20 mph, with gusts as high as 30 mph.
Monday
Sunny, with a high near 34. Breezy, with a north northeast wind 10 to 20 mph, with gusts as high as 30 mph.
Monday Night
Mostly clear, with a low around 16. North northeast wind around 15 mph, with gusts as high as 20 mph.
Tuesday
Sunny, with a high near 38. North wind 5 to 15 mph.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
11 Miles W Conway Summit CA
 38.08°N 119.38°W (Elev. 11601 ft)
Last Update:
5:57 am PST Dec 24, 2025
Forecast Valid:
6am PST Dec 24, 2025-6pm PST Dec 30, 2025
 
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