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

30°F

-1°C

Humidity 95%
Wind Speed WSW 0 MPH
Barometer NA
Dewpoint 29°F (-2°C)
Visibility NA
Last update 24 Dec 03:00 PM PST
Extended Forecast for

16 Miles W Conway Summit CA

Flood Watch December 24, 03:26pm until December 26, 04:00pm
Winter Storm Warning December 24, 03:26pm until December 26, 10:00pm
Click here for hazard details and duration
Flood Watch
Winter Storm Warning
  •  
    Flood Watch December 24, 03:26pm until December 26, 04:00pm
    Winter Storm Warning December 24, 03:26pm until December 26, 10:00pm

    NOW: Multiple hazards in effect

    Click HERE for Details

  • This Afternoon

    High: 36 °F

    Heavy Snow
    and Breezy

  • Tonight

    Tonight: Snow showers before 7pm, then snow after 7pm. Some thunder is also possible. Low around 21. Wind chill values as low as 5. Windy, with a south southwest wind 25 to 30 mph, with gusts as high as 50 mph. Chance of precipitation is 100%. New snow accumulation of 12 to 18 inches possible.

    Low: 21 °F

    Snow Showers
    and Windy

  • Christmas Day

    Christmas Day: Snow. High near 31. Wind chill values as low as 4. Windy, with a south southwest wind around 30 mph, with gusts as high as 55 mph. Chance of precipitation is 100%. New snow accumulation of 19 to 25 inches possible.

    High: 31 °F

    Snow and
    Windy

  • Thursday Night

    Thursday Night: Snow showers. The snow could be heavy at times. Some thunder is also possible. Low around 18. Wind chill values as low as 2. Windy, with a south southwest wind 30 to 35 mph, with gusts as high as 55 mph. Chance of precipitation is 100%. New snow accumulation of 15 to 21 inches possible.

    Low: 18 °F

    Heavy Snow
    and Windy

  • Friday

    Friday: Snow before 10am, then snow showers between 10am and 1pm, then snow after 1pm. The snow could be heavy at times. Some thunder is also possible. High near 29. Windy, with a southwest wind 20 to 30 mph, with gusts as high as 50 mph. Chance of precipitation is 100%. New snow accumulation of 7 to 11 inches possible.

    High: 29 °F

    Heavy Snow
    and Windy

  • Friday Night

    Friday Night: Snow likely, mainly before 10pm. Mostly cloudy, with a low around 5. Southwest wind around 10 mph, with gusts as high as 20 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 30 percent chance of snow, mainly before 4pm. Mostly sunny and cold, with a high near 28. Southwest wind around 5 mph becoming northwest in the afternoon. New snow accumulation of less than a half inch possible.

    High: 28 °F

    Chance Snow

  • Saturday Night

    Saturday Night: A 20 percent chance of snow before 10pm. Mostly clear, with a low around 7. Breezy, with an east wind 15 to 20 mph, with gusts as high as 30 mph.

    Low: 7 °F

    Slight Chance
    Snow and
    Blustery then
    Mostly Clear
    and Breezy

Detailed Forecast

This Afternoon
Snow showers. The snow could be heavy at times. Some thunder is also possible. High near 36. Wind chill values as low as 14. Breezy, with a south southwest wind 15 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 100%. Total daytime snow accumulation of 13 to 19 inches possible.
Tonight
Snow showers before 7pm, then snow after 7pm. Some thunder is also possible. Low around 21. Wind chill values as low as 5. Windy, with a south southwest wind 25 to 30 mph, with gusts as high as 50 mph. Chance of precipitation is 100%. New snow accumulation of 12 to 18 inches possible.
Christmas Day
Snow. High near 31. Wind chill values as low as 4. Windy, with a south southwest wind around 30 mph, with gusts as high as 55 mph. Chance of precipitation is 100%. New snow accumulation of 19 to 25 inches possible.
Thursday Night
Snow showers. The snow could be heavy at times. Some thunder is also possible. Low around 18. Wind chill values as low as 2. Windy, with a south southwest wind 30 to 35 mph, with gusts as high as 55 mph. Chance of precipitation is 100%. New snow accumulation of 15 to 21 inches possible.
Friday
Snow before 10am, then snow showers between 10am and 1pm, then snow after 1pm. The snow could be heavy at times. Some thunder is also possible. High near 29. Windy, with a southwest wind 20 to 30 mph, with gusts as high as 50 mph. Chance of precipitation is 100%. New snow accumulation of 7 to 11 inches possible.
Friday Night
Snow likely, mainly before 10pm. Mostly cloudy, with a low around 5. Southwest wind around 10 mph, with gusts as high as 20 mph. Chance of precipitation is 70%. New snow accumulation of around an inch possible.
Saturday
A 30 percent chance of snow, mainly before 4pm. Mostly sunny and cold, with a high near 28. Southwest wind around 5 mph becoming northwest in the afternoon. New snow accumulation of less than a half inch possible.
Saturday Night
A 20 percent chance of snow before 10pm. Mostly clear, with a low around 7. Breezy, with an east wind 15 to 20 mph, with gusts as high as 30 mph.
Sunday
Sunny, with a high near 33. Breezy, with a north northeast wind 15 to 20 mph, with gusts as high as 30 mph.
Sunday Night
Mostly clear, with a low around 12. Blustery, with a northeast wind 15 to 20 mph, with gusts as high as 30 mph.
Monday
Sunny, with a high near 38. Breezy, with an east northeast wind 15 to 20 mph, with gusts as high as 30 mph.
Monday Night
Mostly clear, with a low around 17. East northeast wind around 15 mph, with gusts as high as 25 mph.
Tuesday
Sunny, with a high near 43. Northeast wind 5 to 10 mph, with gusts as high as 15 mph.
Tuesday Night
Mostly clear, with a low around 21. East northeast wind 5 to 10 mph.
Wednesday
A 20 percent chance of snow. Mostly sunny, with a high near 43. Southwest wind around 5 mph.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
16 Miles W Conway Summit CA
 38.09°N 119.47°W (Elev. 10190 ft)
Last Update:
2:57 pm PST Dec 24, 2025
Forecast Valid:
3pm PST Dec 24, 2025-6pm PST Dec 31, 2025
 
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