National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Significant Winter Storm to Affect the Pacific Coast through the Upper Midwest

A significant storm will bring high winds and heavy precipitation, including mountain snow, to portions of the western U.S. this weekend. Extremely dangerous travel is expected through passes. Confidence is increasing that this storm will then impact the central U.S. with heavy snow and strong winds to the north and severe thunderstorms with possible tornadoes and heavy rainfall to the south. Read More >

Hazardous Weather Conditions

Current conditions at

Mammoth Yosemite Airport (KMMH)

Lat: 37.6241°NLon: 118.8423°WElev: 7112ft.

Clear

32°F

0°C

Humidity 31%
Wind Speed W 10 MPH
Barometer 30.02 in (1016.59 mb)
Dewpoint 5°F (-15°C)
Visibility 10.00 mi
Wind Chill24°F (-4°C)
Last update 09 Dec 09:39 PM PST
Extended Forecast for

18 Miles SE Mammoth Lakes CA

Winter Storm Warning December 10, 04:00am until December 12, 04:00am
Click here for hazard details and duration
Winter Storm Warning

  • Tonight

    Tonight: Isolated snow showers after 5am. Mostly cloudy, then gradually becoming mostly clear, with a steady temperature around 17. Wind chill values as low as -5. Breezy, with a southwest wind 18 to 23 mph, with gusts as high as 40 mph. Chance of precipitation is 10%.

    Breezy.
    Mostly Cloudy
    then Isolated
    Snow Showers

    Low: 17 °F

  • Saturday

    Saturday: Snow showers, mainly after 10am. The snow could be heavy at times. High near 30. Wind chill values as low as -8. Windy, with a south southwest wind 30 to 34 mph, with gusts as high as 55 mph. Chance of precipitation is 80%. New snow accumulation of 4 to 8 inches possible.

    Heavy Snow
    and Windy

    High: 30 °F

  • Saturday
    Night

    Saturday Night: Snow showers. The snow could be heavy at times. Low around 15. Windy, with a south southwest wind 32 to 37 mph, with gusts as high as 55 mph. Chance of precipitation is 90%. New snow accumulation of 11 to 17 inches possible.

    Heavy Snow
    and Windy

    Low: 15 °F

  • Sunday

    Sunday: Snow showers. The snow could be heavy at times. High near 25. Wind chill values as low as -2. Windy, with a west southwest wind 25 to 30 mph decreasing to 18 to 23 mph in the afternoon. Winds could gust as high as 43 mph. Chance of precipitation is 90%. New snow accumulation of 4 to 8 inches possible.

    Heavy Snow
    and Windy

    High: 25 °F

  • Sunday
    Night

    Sunday Night: Scattered snow showers. Mostly cloudy, with a low around 1. West southwest wind 10 to 13 mph. Chance of precipitation is 50%. New snow accumulation of less than a half inch possible.

    Scattered
    Snow Showers

    Low: 1 °F

  • Monday

    Monday: Scattered snow showers. Partly sunny, with a high near 19. Chance of precipitation is 30%. New snow accumulation of less than a half inch possible.

    Scattered
    Snow Showers

    High: 19 °F

  • Monday
    Night

    Monday Night: Mostly clear, with a low around -1.

    Mostly Clear

    Low: -1 °F

  • Tuesday

    Tuesday: Sunny, with a high near 22.

    Sunny

    High: 22 °F

  • Tuesday
    Night

    Tuesday Night: Mostly clear, with a low around 2.

    Mostly Clear

    Low: 2 °F

Detailed Forecast

Tonight
Isolated snow showers after 5am. Mostly cloudy, then gradually becoming mostly clear, with a steady temperature around 17. Wind chill values as low as -5. Breezy, with a southwest wind 18 to 23 mph, with gusts as high as 40 mph. Chance of precipitation is 10%.
Saturday
Snow showers, mainly after 10am. The snow could be heavy at times. High near 30. Wind chill values as low as -8. Windy, with a south southwest wind 30 to 34 mph, with gusts as high as 55 mph. Chance of precipitation is 80%. New snow accumulation of 4 to 8 inches possible.
Saturday Night
Snow showers. The snow could be heavy at times. Low around 15. Windy, with a south southwest wind 32 to 37 mph, with gusts as high as 55 mph. Chance of precipitation is 90%. New snow accumulation of 11 to 17 inches possible.
Sunday
Snow showers. The snow could be heavy at times. High near 25. Wind chill values as low as -2. Windy, with a west southwest wind 25 to 30 mph decreasing to 18 to 23 mph in the afternoon. Winds could gust as high as 43 mph. Chance of precipitation is 90%. New snow accumulation of 4 to 8 inches possible.
Sunday Night
Scattered snow showers. Mostly cloudy, with a low around 1. West southwest wind 10 to 13 mph. Chance of precipitation is 50%. New snow accumulation of less than a half inch possible.
Monday
Scattered snow showers. Partly sunny, with a high near 19. Chance of precipitation is 30%. New snow accumulation of less than a half inch possible.
Monday Night
Mostly clear, with a low around -1.
Tuesday
Sunny, with a high near 22.
Tuesday Night
Mostly clear, with a low around 2.
Wednesday
Mostly sunny, with a high near 26.
Wednesday Night
Partly cloudy, with a low around 8.
Thursday
Isolated snow showers. Mostly sunny, with a high near 26.
Thursday Night
Isolated snow showers. Mostly cloudy, with a low around 8.
Friday
Scattered snow showers. Partly sunny, with a high near 24.
Click Map For Forecast
Disclaimer
Map Legend
Point Forecast:
18 Miles SE Mammoth Lakes CA
 37.47°N 118.73°W (Elev. 9813 ft)
Last Update:
1:02 pm PST Dec 9, 2022
Forecast Valid:
9pm PST Dec 9, 2022-6pm PST Dec 16, 2022
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation