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.

Overcast

32°F

0°C

Humidity	74%
Wind Speed	N 0 MPH
Barometer	30.19 in (1022.35 mb)
Dewpoint	25°F (-4°C)
Visibility	10.00 mi
Last update	31 Dec 02:15 PM 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 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: 44 °F
Rain/Snow
Likely
Tonight
Low: 27 °F
Wintry Mix
New Year's Day
High: 41 °F
Rain/Snow
Thursday Night
Low: 18 °F
Chance Snow
then Partly
Cloudy
Friday
High: 45 °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
Sunday
High: 41 °F
Snow then
Rain/Snow

Detailed Forecast

This Afternoon

Rain likely before 4pm, then rain and snow likely. Snow level 9100 feet. Cloudy, with a high near 44. Calm wind. Chance of precipitation is 60%. Little or no snow accumulation expected.

Tonight

Rain and snow likely before 7pm, then rain or freezing rain between 7pm and 1am, then rain and snow likely after 1am. Snow level 8600 feet. Low around 27. Calm wind. Chance of precipitation is 80%. Little or no ice accumulation expected. Little or no snow accumulation expected.

New Year's Day

Rain and snow. Snow level 8300 feet lowering to 7700 feet in the afternoon . High near 41. Calm wind becoming southeast around 5 mph in the morning. 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 18. Southwest wind around 5 mph becoming calm after midnight. 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. Snow level 6900 feet. 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 1pm. Snow level 6900 feet rising to 7800 feet in the afternoon. High near 44. Chance of precipitation is 80%. Little or no snow accumulation expected.

Saturday Night

Rain before 7pm, then rain and snow between 7pm and 1am, then snow after 1am. Snow level 7100 feet. Mostly cloudy, with a low around 21.

Sunday

Snow before 4pm, then rain and snow. Cloudy, with a high near 41.

Sunday Night

Rain and snow, becoming all snow after 7pm. Mostly cloudy, with a low around 18.

Monday

Snow likely. Mostly cloudy, with a high near 41.

Monday Night

Snow likely. Mostly cloudy, with a low around 16.

Tuesday

A chance of snow. Partly sunny, with a high near 40.