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	4.00 mi
Last update	01 Jan 01:55 AM PST

More Information:

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

Extended Forecast for

4 Miles E 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: 31 °F
Rain/Snow
New Year's Day
High: 41 °F
Rain/Snow
Thursday Night
Low: 21 °F
Slight Chance
Snow then
Partly Cloudy
Friday
High: 43 °F
Mostly Sunny
Friday Night
Low: 26 °F
Chance Snow
then Snow
Likely
Saturday
High: 42 °F
Rain/Snow
Saturday Night
Low: 25 °F
Snow
Sunday
High: 39 °F
Snow

Detailed Forecast

Overnight

Rain and snow. Snow level 8500 feet. Low around 31. Northeast wind around 5 mph. Chance of precipitation is 90%. Little or no snow accumulation expected.

New Year's Day

Rain and snow before 1pm, then a chance of snow. Snow level 8500 feet lowering to 7500 feet in the afternoon . High near 41. East wind 5 to 10 mph becoming southwest in the afternoon. Winds could gust as high as 20 mph. Chance of precipitation is 100%. Little or no snow accumulation expected.

Thursday Night

A 10 percent chance of snow before 7pm. Partly cloudy, with a low around 21. West wind 5 to 10 mph.

Friday

Mostly sunny, with a high near 43. South wind around 5 mph.

Friday Night

Snow likely, mainly after 4am. Mostly cloudy, with a low around 26. 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 7500 feet. High near 42. South wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 90%. New snow accumulation of less than one inch possible.

Saturday Night

Snow before 10pm, then snow showers likely between 10pm and 4am, then snow likely after 4am. Some thunder is also possible. Low around 25. Chance of precipitation is 80%. New snow accumulation of around an inch possible.

Sunday

Snow. Cloudy, with a high near 39.

Sunday Night

Snow. Cloudy, with a low around 23.

Monday

Snow. 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 36.

Tuesday Night

A slight chance of snow. Mostly cloudy, with a low around 17.