Snow Squalls May Impact New Year's Eve Travel from the Great Lakes to the Mid-Atlantic; Heavy Rain & Isolated Severe Thunderstorms in Southern California

Snow squalls are likely to cross the Lower Great Lakes this evening and the Ohio Valley through the interior Northeast/northern Mid-Atlantic overnight, before potentially reaching the I-95 corridor from D.C. to New York City early New Year’s Day morning. Heavy rain and isolated severe thunderstorms will impact coastal southern California including Los Angeles tonight into early on New Year's Day. Read More >

Hazardous Weather Conditions

Current conditions at

Mammoth Yosemite Airport (KMMH)

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

Mostly Cloudy

32°F

0°C

Humidity	69%
Wind Speed	N 0 MPH
Barometer	30.2 in (1022.69 mb)
Dewpoint	23°F (-5°C)
Visibility	10.00 mi
Last update	31 Dec 01:55 PM PST

More Information:

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

Extended Forecast for

8 Miles ENE Mammoth Lakes CA

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

Winter Weather Advisory December 31, 04:00pm until January 1, 12:00pm

Click here for hazard details and duration

Winter Storm Watch

Winter Weather Advisory

This Afternoon
High: 43 °F
Rain/Snow
Tonight
Low: 29 °F
Rain/Snow
New Year's Day
High: 41 °F
Rain/Snow
Thursday Night
Low: 21 °F
Chance Snow
then Partly
Cloudy
Friday
High: 45 °F
Mostly Sunny
Friday Night
Low: 24 °F
Chance Snow
then Snow
Likely
Saturday
High: 43 °F
Rain/Snow
Saturday Night
Low: 23 °F
Rain/Snow
then Snow
Sunday
High: 40 °F
Snow

Detailed Forecast

This Afternoon

Rain likely before 4pm, then rain and snow. Snow level 9000 feet. High near 43. East wind around 5 mph. Chance of precipitation is 80%. Little or no snow accumulation expected.

Tonight

Rain and snow, mainly before 4am. Snow level 8700 feet lowering to 8200 feet after midnight . Low around 29. Calm wind. Chance of precipitation is 80%. Little or no snow accumulation expected.

New Year's Day

Rain and snow. Snow level 8200 feet lowering to 7600 feet in the afternoon . High near 41. East wind 5 to 10 mph becoming northwest in the afternoon. Chance of precipitation is 90%. Little or no snow accumulation expected.

Thursday Night

A 30 percent chance of snow before 10pm. Partly cloudy, with a low around 21. West wind 5 to 10 mph. Little or no snow accumulation expected.

Friday

Mostly sunny, with a high near 45. Calm wind becoming south around 5 mph in the afternoon.

Friday Night

Snow likely, mainly after 4am. Mostly cloudy, with a low around 24. South wind around 10 mph. Chance of precipitation is 60%. Little or no snow accumulation expected.

Saturday

Snow likely before 10am, then rain and snow. Snow level rising to 7800 feet in the afternoon. High near 43. Chance of precipitation is 90%. New snow accumulation of less than a half inch possible.

Saturday Night

Rain and snow, becoming all snow after 10pm. Mostly cloudy, with a low around 23.

Sunday

Snow. Cloudy, with a high near 40.

Sunday Night

Snow. Mostly cloudy, with a low around 20.

Monday

Snow likely. Mostly cloudy, with a high near 39.

Monday Night

Snow likely. Mostly cloudy, with a low around 18.

Tuesday

A chance of snow. Partly sunny, with a high near 39.