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

28°F

-2°C

Humidity	92%
Wind Speed	N 0 MPH
Barometer	30.09 in (1018.96 mb)
Dewpoint	27°F (-3°C)
Visibility	10.00 mi
Last update	31 Dec 10:15 PM PST

More Information:

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

Extended Forecast for

9 Miles SE 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
Tonight
Low: 25 °F
Snow and
Breezy
New Year's Day
High: 31 °F
Heavy Snow
and Breezy
Thursday Night
Low: 16 °F
Windy. Chance
Snow then
Partly Cloudy
Friday
High: 32 °F
Mostly Sunny
and Breezy
Friday Night
Low: 18 °F
Very Windy.
Chance Snow
then Snow
Likely
Saturday
High: 28 °F
Heavy Snow
and Very
Windy
Saturday Night
Low: 18 °F
Heavy Snow
and Very
Windy
Sunday
High: 25 °F
Heavy Snow
and Very
Windy

Detailed Forecast

Tonight

Snow. Low around 25. Breezy, with a southwest wind 15 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 90%. Total nighttime snow accumulation of 1 to 3 inches possible.

New Year's Day

Snow, mainly before 4pm. The snow could be heavy at times. High near 31. Breezy, with a southwest wind around 25 mph, with gusts as high as 40 mph. Chance of precipitation is 90%. New snow accumulation of 3 to 7 inches possible.

Thursday Night

A 40 percent chance of snow before 10pm. Partly cloudy, with a low around 16. Windy, with a southwest wind 20 to 30 mph, with gusts as high as 45 mph. New snow accumulation of less than a half inch possible.

Friday

Mostly sunny, with a high near 32. Breezy, with a southwest wind 20 to 25 mph, with gusts as high as 35 mph.

Friday Night

Snow likely, mainly after 4am. Mostly cloudy, with a low around 18. Very windy, with a southwest wind 30 to 40 mph, with gusts as high as 60 mph. Chance of precipitation is 60%. New snow accumulation of 1 to 2 inches possible.

Saturday

Snow. The snow could be heavy at times. High near 28. Very windy, with a southwest wind 40 to 45 mph decreasing to 35 to 40 mph in the afternoon. Winds could gust as high as 70 mph. Chance of precipitation is 90%. New snow accumulation of 5 to 9 inches possible.

Saturday Night

Snow. The snow could be heavy at times. Low around 18. Very windy. Chance of precipitation is 90%. New snow accumulation of 7 to 11 inches possible.

Sunday

Snow. The snow could be heavy at times. Cloudy, with a high near 25. Very windy.

Sunday Night

Snow before 10pm, then snow showers after 10pm. The snow could be heavy at times. Some thunder is also possible. Mostly cloudy, with a low around 14. Very windy.

Monday

Snow likely. The snow could be heavy at times. Mostly cloudy, with a high near 24. Windy.

Monday Night

Snow likely. The snow could be heavy at times. Mostly cloudy, with a low around 12. Windy.

Tuesday

A chance of snow. Partly sunny, with a high near 25. Breezy.

Tuesday Night

A chance of snow. Partly cloudy, with a low around 13.

Wednesday

A chance of snow. Partly sunny, with a high near 26.