Lake Effect Snow through Friday; Heavy Rain, Thunderstorms and Mountain Snow in California

Periods of moderate to heavy lake effect snow will continue through Friday downwind of Lake Erie and Ontario. Several additional inches of accumulating snow are expected. A Pacific storm will bring heavy rain and mountain snow across California, the Southwest and Intermountain West today. Isolated severe thunderstorms and scattered flash flooding is possible across parts of southern California. Read More >

Hazardous Weather Conditions

Winter Storm Warning in effect from January 3, 12:00 AM PST until January 5, 10:00 AM PST

Current conditions at

Mammoth Yosemite Airport (KMMH)

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

Mostly Cloudy

32°F

0°C

Humidity	86%
Wind Speed	ESE 5 MPH
Barometer	30.01 in (1016.26 mb)
Dewpoint	28°F (-2°C)
Visibility	10.00 mi
Wind Chill	27°F (-3°C)
Last update	01 Jan 03:35 PM PST

More Information:

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

Extended Forecast for

9 Miles E Mammoth Lakes CA

Winter Storm Warning January 3, 12:00am until January 5, 10:00am

Click here for hazard details and duration

Winter Storm Warning

New Year's Day
High: 41 °F
Chance Snow
Tonight
Low: 18 °F
Partly Cloudy
Friday
High: 42 °F
Mostly Sunny
Friday Night
Low: 23 °F
Chance Snow
then Snow
Likely
Saturday
High: 42 °F
Rain/Snow
Saturday Night
Low: 24 °F
Rain/Snow
Likely then
Snow Likely
Sunday
High: 39 °F
Heavy Snow
Sunday Night
Low: 18 °F
Snow
Monday
High: 38 °F
Snow Likely

Detailed Forecast

New Year's Day

A 30 percent chance of snow. Mostly sunny, with a high near 41. South wind around 10 mph. Total daytime snow accumulation of less than a half inch possible.

Tonight

Partly cloudy, with a low around 18. West wind 5 to 10 mph.

Friday

Mostly sunny, with a high near 42. Calm wind becoming northeast around 5 mph in the morning.

Friday Night

Snow likely, mainly after 4am. Mostly cloudy, with a low around 23. South wind around 5 mph. Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.

Saturday

Snow, possibly mixed with rain. Snow level 7600 feet. High near 42. South wind 5 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 90%. New snow accumulation of less than a half inch possible.

Saturday Night

Rain and snow likely, becoming all snow after 7pm. Mostly cloudy, with a low around 24. South wind around 10 mph, with gusts as high as 20 mph. Chance of precipitation is 70%. New snow accumulation of 1 to 2 inches possible.

Sunday

Snow. The snow could be heavy at times. High near 39. Chance of precipitation is 90%. New snow accumulation of 3 to 5 inches possible.

Sunday Night

Snow, mainly before 4am. Mostly cloudy, with a low around 18.

Monday

Snow likely, mainly after 10am. Partly sunny, with a high near 38.

Monday Night

A chance of snow. Mostly cloudy, with a low around 15.

Tuesday

A chance of snow. Partly sunny, with a high near 37.

Tuesday Night

A slight chance of snow. Partly cloudy, with a low around 15.