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,mist

36°F

2°C

Humidity	86%
Wind Speed	SSE 8 MPH
Barometer	29.89 in (1012.19 mb)
Dewpoint	32°F (0°C)
Visibility	2.50 mi
Wind Chill	30°F (-1°C)
Last update	21 Apr 03:55 PM PDT

More Information:

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

Extended Forecast for

8 Miles ENE Mammoth Lakes CA

Winter Weather Advisory April 21, 04:15pm until April 22, 05:00pm

Click here for hazard details and duration

Winter Weather Advisory

Winter Weather Advisory April 21, 04:15pm until April 22, 05:00pm
NOW until 5:00pm Wed
Winter Weather Advisory
This Afternoon
High: 44 °F
Rain/Snow and
Breezy
Tonight
Low: 21 °F
Snow Showers
and Breezy
then Chance
Snow Showers
Wednesday
High: 46 °F
Slight Chance
Snow Showers
Wednesday Night
Low: 20 °F
Mostly Clear
Thursday
High: 55 °F
Sunny
Thursday Night
Low: 26 °F
Mostly Clear
Friday
High: 56 °F
Mostly Sunny
Friday Night
Low: 29 °F
Mostly Cloudy

Detailed Forecast

This Afternoon

Rain and snow showers. Some thunder is also possible. Snow level 7200 feet. Steady temperature around 44. Breezy, with a southwest wind around 25 mph, with gusts as high as 40 mph. Chance of precipitation is 90%. Total daytime snow accumulation of less than a half inch possible.

Tonight

Snow showers, mainly before 11pm. Some thunder is also possible. Low around 21. Breezy, with a west wind 15 to 20 mph decreasing to 10 to 15 mph after midnight. Winds could gust as high as 35 mph. Chance of precipitation is 90%. New snow accumulation of 1 to 3 inches possible.

Wednesday

A slight chance of snow showers before 8am, then a slight chance of snow showers after 2pm. Sunny, with a high near 46. West wind 5 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 20%.

Wednesday Night

Mostly clear, with a low around 20. West wind 5 to 10 mph becoming light in the evening. Winds could gust as high as 20 mph.

Thursday

Sunny, with a high near 55. Calm wind becoming northwest around 5 mph.

Thursday Night

Mostly clear, with a low around 26. Northwest wind around 5 mph becoming calm in the evening.

Friday

Mostly sunny, with a high near 56.

Friday Night

Mostly cloudy, with a low around 29.

Saturday

A chance of showers after 11am. Snow level 7300 feet rising to 8300 feet in the afternoon. Partly sunny, with a high near 51.

Saturday Night

A chance of rain showers before 11pm, then a slight chance of rain and snow showers between 11pm and 2am, then a slight chance of snow showers after 2am. Snow level 8100 feet lowering to 7100 feet after midnight . Mostly cloudy, with a low around 26.

Sunday

A chance of rain and snow showers. Snow level rising to 7500 feet in the afternoon. Mostly sunny, with a high near 52.

Sunday Night

A slight chance of showers. Snow level 7800 feet lowering to 7000 feet after midnight . Partly cloudy, with a low around 24.

Monday

A slight chance of rain and snow showers. Mostly sunny, with a high near 54.

Monday Night

Mostly cloudy, with a low around 28.

Tuesday

A chance of showers. Snow level rising to 7800 feet in the afternoon. Mostly sunny, with a high near 54.