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.

unknown precip,mist

30°F

-1°C

Humidity	92%
Wind Speed	N 0 MPH
Barometer	30.05 in (1017.61 mb)
Dewpoint	28°F (-2°C)
Visibility	5.00 mi
Last update	01 Jan 12:55 AM PST

More Information:

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

Extended Forecast for

6 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
Overnight
Low: 27 °F
Wintry Mix
New Year's Day
High: 40 °F
Wintry Mix
Thursday Night
Low: 19 °F
Chance Snow
then Partly
Cloudy
Friday
High: 45 °F
Mostly Sunny
Friday Night
Low: 23 °F
Chance Snow
then Snow
Likely
Saturday
High: 41 °F
Rain/Snow
Saturday Night
Low: 25 °F
Rain/Snow
then Snow
Sunday
High: 38 °F
Snow

Detailed Forecast

Overnight

Rain and snow before 4am, then a chance of rain, snow, and freezing rain. Snow level 8500 feet. Low around 27. East wind around 5 mph. Chance of precipitation is 80%. Total nighttime ice accumulation of less than a 0.1 of an inch possible. Little or no snow accumulation expected.

New Year's Day

A chance of rain, snow, and freezing rain before 7am, then rain and snow. Snow level 8500 feet lowering to 7600 feet in the afternoon . High near 40. Southeast wind 5 to 15 mph. Chance of precipitation is 90%. Little or no ice accumulation expected. Little or no snow accumulation expected.

Thursday Night

A 30 percent chance of snow before 10pm. Partly cloudy, with a low around 19. Southwest wind 5 to 10 mph. Little or no snow accumulation expected.

Friday

Mostly sunny, with a high near 45. South wind 5 to 10 mph.

Friday Night

Snow likely, mainly after 4am. Mostly cloudy, with a low around 23. South wind around 10 mph. Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.

Saturday

Snow likely before 10am, then rain and snow. Snow level rising to 7800 feet in the afternoon. High near 41. South wind 10 to 15 mph, with gusts as high as 30 mph. Chance of precipitation is 90%. New snow accumulation of less than one inch possible.

Saturday Night

Rain and snow, becoming all snow after 10pm. Snow level 7200 feet. Low around 25. Chance of precipitation is 90%. New snow accumulation of 1 to 3 inches possible.

Sunday

Snow. Cloudy, with a high near 38.

Sunday Night

Snow. Mostly cloudy, with a low around 21.

Monday

Snow likely. Mostly cloudy, with a high near 37.

Monday Night

Snow likely. Mostly cloudy, with a low around 17.

Tuesday

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

Tuesday Night

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