Heavy Rainfall to Bring Flooding Threat to California; Heavy Snow in the Sierra

A strong atmospheric river will bring heavy rainfall to California through the holiday week. The heaviest rainfall is expected on Wednesday in the Los Angeles Basin. Flash and urban flooding is possible. A prolonged heavy snowfall is expected in the Sierra Nevada from the atmospheric river, raising concerns for major snow‐load impacts. Travel may be difficult to impossible over the passes. Read More >

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 31°F (-1°C)
Visibility NA
Last update 24 Dec 04:00 AM PST
Extended Forecast for

11 Miles WSW Conway Summit CA

Flood Watch December 24, 05:02am until December 26, 04:00pm
Winter Storm Warning December 24, 05:02am until December 26, 10:00pm
Click here for hazard details and duration
Flood Watch
Winter Storm Warning
  •  
    Flood Watch December 24, 05:02am until December 26, 04:00pm
    Winter Storm Warning December 24, 05:02am until December 26, 10:00pm

    NOW: Multiple hazards in effect

    Click HERE for Details

  • Overnight

    Low: 24 °F

    Heavy Snow
    and Windy

  • Wednesday

    Wednesday: 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.  Temperature rising to near 31 by noon, then falling to around 24 during the remainder of the day. Wind chill values as low as 11. Breezy, with a south southwest wind 20 to 25 mph decreasing to 15 to 20 mph in the afternoon. Winds could gust as high as 45 mph.  Chance of precipitation is 100%. New snow accumulation of 17 to 23 inches possible.

    High: 31 °F

    Heavy Snow
    and Breezy

  • Wednesday Night

    Wednesday Night: Snow before 10pm, then snow showers between 10pm and 4am, then snow after 4am. Some thunder is also possible.  Steady temperature around 24. Wind chill values as low as 3. Windy, with a south southwest wind 25 to 30 mph increasing to 30 to 35 mph after midnight. Winds could gust as high as 50 mph.  Chance of precipitation is 100%. New snow accumulation of 10 to 16 inches possible.

    Low: 24 °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 25 to 35 mph, with gusts as high as 55 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 showers before 4am, then snow after 4am. The snow could be heavy at times. Some thunder is also possible.  Low around 17. 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 14 to 20 inches possible.

    Low: 17 °F

    Heavy Snow
    and Windy

  • Friday

    Friday: Snow. The snow could be heavy at times.  High near 23. Windy, with a southwest wind 25 to 30 mph decreasing to 15 to 20 mph in the afternoon. Winds could gust as high as 45 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 6. West 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: 6 °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. Southwest wind 5 to 10 mph becoming north in the morning.

    High: 24 °F

    Chance Snow

Detailed Forecast

Overnight
Snow. The snow could be heavy at times. Low around 24. Wind chill values as low as 8. Windy, with a south southwest wind around 30 mph, with gusts as high as 45 mph. Chance of precipitation is 100%. Total nighttime snow accumulation of 8 to 12 inches possible.
Wednesday
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. Temperature rising to near 31 by noon, then falling to around 24 during the remainder of the day. Wind chill values as low as 11. Breezy, with a south southwest wind 20 to 25 mph decreasing to 15 to 20 mph in the afternoon. Winds could gust as high as 45 mph. Chance of precipitation is 100%. New snow accumulation of 17 to 23 inches possible.
Wednesday Night
Snow before 10pm, then snow showers between 10pm and 4am, then snow after 4am. Some thunder is also possible. Steady temperature around 24. Wind chill values as low as 3. Windy, with a south southwest wind 25 to 30 mph increasing to 30 to 35 mph after midnight. Winds could gust as high as 50 mph. Chance of precipitation is 100%. New snow accumulation of 10 to 16 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 25 to 35 mph, with gusts as high as 55 mph. Chance of precipitation is 100%. New snow accumulation of 17 to 23 inches possible.
Thursday Night
Snow showers before 4am, then snow after 4am. The snow could be heavy at times. Some thunder is also possible. Low around 17. 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 14 to 20 inches possible.
Friday
Snow. The snow could be heavy at times. High near 23. Windy, with a southwest wind 25 to 30 mph decreasing to 15 to 20 mph in the afternoon. Winds could gust as high as 45 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 6. West 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 40 percent chance of snow, mainly before 4pm. Partly sunny and cold, with a high near 24. Southwest wind 5 to 10 mph becoming north in the morning.
Saturday Night
A 20 percent chance of snow before 10pm. Mostly clear, with a low around 7. Blustery, with an east northeast wind 15 to 20 mph, with gusts as high as 30 mph.
Sunday
Sunny and cold, with a high near 28. Blustery, with a northeast wind 10 to 20 mph, with gusts as high as 25 mph.
Sunday Night
Mostly clear, with a low around 12. Blustery, with a northeast wind 15 to 20 mph, with gusts as high as 25 mph.
Monday
Sunny, with a high near 34. Northeast wind 10 to 15 mph, with gusts as high as 25 mph.
Monday Night
Mostly clear, with a low around 18. Northeast wind around 10 mph, with gusts as high as 15 mph.
Tuesday
Sunny, with a high near 38. North northeast wind 5 to 10 mph.
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ABOUT THIS FORECAST

 
Point Forecast:
11 Miles WSW Conway Summit CA
 38.03°N 119.37°W (Elev. 10335 ft)
4:57 am PST Dec 24, 2025
5am PST Dec 24, 2025-6pm PST Dec 30, 2025
 
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