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.

snow,freezing fog

28°F

-2°C

Humidity	92%
Wind Speed	NW 11 MPH
Barometer	29.99 in (1015.58 mb)
Dewpoint	27°F (-3°C)
Visibility	0.25 mi
Wind Chill	18°F (-8°C)
Last update	21 Apr 09:35 PM PDT

More Information:

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

Extended Forecast for

9 Miles ESE Mammoth Lakes CA

Winter Weather Advisory April 21, 09:58pm until April 22, 05:00pm

Click here for hazard details and duration

Winter Weather Advisory

Winter Weather Advisory April 21, 09:58pm until April 22, 05:00pm
NOW until 5:00pm Wed
Winter Weather Advisory
Tonight
Low: 18 °F
Snow Showers
Likely
Wednesday
High: 46 °F
Slight Chance
Snow Showers
Wednesday Night
Low: 19 °F
Mostly Clear
Thursday
High: 56 °F
Sunny
Thursday Night
Low: 26 °F
Partly Cloudy
Friday
High: 56 °F
Partly Sunny
Friday Night
Low: 26 °F
Partly Cloudy
Saturday
High: 51 °F
Chance
Rain/Snow

Detailed Forecast

Tonight

Snow showers likely, mainly before 11pm. Mostly cloudy, then gradually becoming mostly clear, with a low around 18. West wind 5 to 10 mph, with gusts as high as 25 mph. Chance of precipitation is 60%. Total nighttime snow accumulation of 1 to 3 inches possible.

Wednesday

A slight chance of snow showers between 11am and 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 19. 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 56. Calm wind becoming northwest around 5 mph.

Thursday Night

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

Friday

Partly sunny, with a high near 56. Calm wind becoming southwest around 5 mph in the afternoon.

Friday Night

Partly cloudy, with a low around 26.

Saturday

A chance of rain and snow showers between 11am and 2pm, then a chance of rain showers after 2pm. Snow level 7600 feet. Partly sunny, with a high near 51.

Saturday Night

A chance of rain and snow showers before 11pm, then a chance of snow showers. Mostly cloudy, with a low around 23.

Sunday

A chance of snow showers after 11am, mixing with rain after 2pm. Partly sunny, with a high near 50.

Sunday Night

A slight chance of rain and snow showers. Partly cloudy, with a low around 22.

Monday

A slight chance of rain and snow showers. Partly sunny, with a high near 52.

Monday Night

A slight chance of rain and snow showers. Snow level 7900 feet lowering to 7300 feet after midnight . Mostly cloudy, with a low around 25.

Tuesday

A chance of rain and snow showers. Snow level rising to 7600 feet in the afternoon. Partly sunny, with a high near 52.