Strong Storm System Brings Heavy Mountain Snow to the Sierra Nevada and Critical Fire Weather Conditions to the Plains

A Pacific storm system will continue to bring low elevation rain and mountain snow to much of the West through Wednesday, with heavy mountain snow expected in the higher elevations of the Sierra Nevada. This system will also bring strong winds to the Intermountain West, Rockies, and Plains, which will create Critical fire weather conditions for the High Plains. Read More >

Hazardous Weather Conditions

Winter Weather Advisory until April 22, 05:00 PM PDT

Current conditions at

Mammoth Yosemite Airport (KMMH)

Lat: 37.6241°NLon: 118.8423°WElev: 7112.0ft.

light snow,haze

32°F

0°C

Humidity	86%
Wind Speed	W 16 MPH
Barometer	29.92 in (1013.21 mb)
Dewpoint	28°F (-2°C)
Visibility	0.50 mi
Wind Chill	21°F (-6°C)
Last update	21 Apr 05:55 PM PDT

More Information:

Local Forecast Office More Local Wx 3 Day History Hourly Weather Forecast

Extended Forecast for

6 Miles SE Mammoth Lakes CA

Winter Weather Advisory April 21, 06:12pm until April 22, 05:00pm

Click here for hazard details and duration

Winter Weather Advisory

Winter Weather Advisory April 21, 06:12pm until April 22, 05:00pm
NOW until 5:00pm Wed
Winter Weather Advisory
Tonight
Low: 15 °F
Heavy Snow
and Very
Windy then
Heavy Snow
and Windy
Wednesday
High: 29 °F
Slight Chance
Snow Showers
and Windy
Wednesday Night
Low: 16 °F
Mostly Clear
Thursday
High: 38 °F
Sunny
Thursday Night
Low: 24 °F
Partly Cloudy
Friday
High: 39 °F
Mostly Sunny
Friday Night
Low: 25 °F
Mostly Cloudy
Saturday
High: 33 °F
Chance Snow
Showers

Detailed Forecast

Tonight

Snow showers, mainly before 2am. The snow could be heavy at times. Some thunder is also possible. Low around 15. Very windy, with a southwest wind 40 to 45 mph decreasing to 30 to 35 mph in the evening. Winds could gust as high as 70 mph. Chance of precipitation is 90%. Total nighttime snow accumulation of 10 to 14 inches possible.

Wednesday

A slight chance of snow showers before 8am, then a slight chance of snow showers after 11am. Mostly sunny, with a high near 29. Windy, with a 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 20%.

Wednesday Night

Mostly clear, with a low around 16. Southwest wind 10 to 15 mph, with gusts as high as 25 mph.

Thursday

Sunny, with a high near 38. Southwest wind around 10 mph.

Thursday Night

Partly cloudy, with a low around 24. West wind around 10 mph.

Friday

Mostly sunny, with a high near 39. Southwest wind 10 to 15 mph, with gusts as high as 25 mph.

Friday Night

Mostly cloudy, with a low around 25.

Saturday

A chance of snow showers after 11am. Partly sunny, with a high near 33.