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	92%
Wind Speed	N 0 MPH
Barometer	30.04 in (1017.27 mb)
Dewpoint	30°F (-1°C)
Visibility	2.50 mi
Last update	01 Jan 06:55 AM PST

More Information:

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

Extended Forecast for

10 Miles ENE 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: 41 °F
Rain/Snow
Tonight
Low: 17 °F
Slight Chance
Snow then
Partly Cloudy
Friday
High: 43 °F
Mostly Sunny
Friday Night
Low: 21 °F
Chance Snow
then Snow
Likely
Saturday
High: 44 °F
Rain/Snow
Saturday Night
Low: 21 °F
Rain/Snow
then Snow
Likely
Sunday
High: 41 °F
Snow then
Rain/Snow
Sunday Night
Low: 20 °F
Rain/Snow
then Snow

Detailed Forecast

New Year's Day

Rain likely before 10am, then rain and snow. Snow level 8500 feet lowering to 7400 feet in the afternoon . High near 41. Calm wind becoming south around 5 mph in the morning. Chance of precipitation is 90%. Little or no snow accumulation expected.

Tonight

A 10 percent chance of snow before 7pm. Partly cloudy, with a low around 17. Northwest wind around 5 mph becoming calm after midnight.

Friday

Mostly sunny, with a high near 43. Calm wind becoming south around 5 mph in the afternoon.

Friday Night

Snow likely, mainly after 4am. Mostly cloudy, with a low around 21. South wind around 5 mph. Chance of precipitation is 60%. Little or no snow accumulation expected.

Saturday

Rain and snow, becoming all rain after 4pm. Snow level 7500 feet. High near 44. South wind 5 to 15 mph. Chance of precipitation is 90%. Little or no snow accumulation expected.

Saturday Night

Rain before 7pm, then rain and snow between 7pm and 10pm, then snow likely after 10pm. Low around 21. South wind 5 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 80%. New snow accumulation of less than a half inch possible.

Sunday

Snow before 1pm, then rain and snow. High near 41. Chance of precipitation is 90%. New snow accumulation of 1 to 3 inches possible.

Sunday Night

Rain and snow, becoming all snow after 7pm. Mostly cloudy, with a low around 20.

Monday

Snow. Mostly cloudy, with a high near 39.

Monday Night

Snow likely. Mostly cloudy, with a low around 13.

Tuesday

A chance of snow. Partly sunny, with a high near 38.

Tuesday Night

A slight chance of snow. Mostly cloudy, with a low around 12.