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

Current conditions at

Mammoth Yosemite Airport (KMMH)

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

light snow,mist

32°F

0°C

Humidity	100%
Wind Speed	N 0 MPH
Barometer	30.04 in (1017.27 mb)
Dewpoint	32°F (0°C)
Visibility	4.00 mi
Last update	01 Jan 07:55 AM PST

More Information:

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

Extended Forecast for

10 Miles ESE Mammoth Lakes CA

Winter Storm Watch January 2, 04:00pm until January 4, 10:00am

Winter Weather Advisory until January 1, 12:00pm

Click here for hazard details and duration

Winter Storm Watch

Winter Weather Advisory

Winter Weather Advisory until January 1, 12:00pm
NOW until 12:00pm Thu
Winter Weather Advisory
New Year's Day
High: 37 °F
Snow and
Breezy
Tonight
Low: 21 °F
Breezy.
Slight Chance
Snow then
Partly Cloudy
Friday
High: 39 °F
Mostly Sunny
then Mostly
Sunny and
Breezy
Friday Night
Low: 24 °F
Chance Snow
and Windy
then Snow
Likely and
Very Windy
Saturday
High: 37 °F
Heavy Snow
and Very
Windy
Saturday Night
Low: 23 °F
Snow and Very
Windy
Sunday
High: 34 °F
Heavy Snow
and Windy
Sunday Night
Low: 22 °F
Heavy Snow
and Very
Windy

Detailed Forecast

New Year's Day

Snow, mainly before 1pm. High near 37. Breezy, with a southwest wind 20 to 25 mph, with gusts as high as 40 mph. Chance of precipitation is 100%. Total daytime snow accumulation of 2 to 4 inches possible.

Tonight

A 10 percent chance of snow before 7pm. Partly cloudy, with a low around 21. Breezy, with a southwest wind 15 to 25 mph, with gusts as high as 35 mph.

Friday

Mostly sunny, with a high near 39. Breezy, with a south wind 15 to 20 mph, with gusts as high as 30 mph.

Friday Night

Snow likely, mainly after 4am. Mostly cloudy, with a low around 24. Very windy, with a southwest wind 30 to 40 mph, with gusts as high as 55 mph. Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.

Saturday

Snow. The snow could be heavy at times. High near 37. Very windy, with a south wind around 40 mph, with gusts as high as 65 mph. Chance of precipitation is 90%. New snow accumulation of 3 to 5 inches possible.

Saturday Night

Snow before 10pm, then snow showers likely between 10pm and 4am, then snow likely after 4am. Some thunder is also possible. Low around 23. Very windy, with a southwest wind 35 to 40 mph, with gusts as high as 60 mph. Chance of precipitation is 80%. New snow accumulation of 1 to 3 inches possible.

Sunday

Snow. The snow could be heavy at times. High near 34. Windy. Chance of precipitation is 90%. New snow accumulation of 4 to 8 inches possible.

Sunday Night

Snow. The snow could be heavy at times. Cloudy, with a low around 22. Very windy.

Monday

Snow. Mostly cloudy, with a high near 32. Windy.

Monday Night

Snow likely. Mostly cloudy, with a low around 15. Breezy.

Tuesday

A chance of snow. Partly sunny, with a high near 31.

Tuesday Night

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