Snow Squalls May Impact New Year's Eve Travel from the Great Lakes to the Mid-Atlantic; Heavy Rain Returns to California

Lake effect snow will continue through Friday bringing significant snowfall to areas east to southeast of the Great Lakes. Snow squalls may impact New Year's Eve travel this evening and overnight across parts of the Great Lakes, Ohio Valley, Mid-Atlantic, and Upstate New York. Heavy rain will bring another flash flooding threat for southern California New Year's Eve into New Year's Day. Read More >

Hazardous Weather Conditions

Winter Storm Watch in effect from January 2, 04:00 PM PST until January 4, 10:00 AM PST

Current conditions at

Mammoth Yosemite Airport (KMMH)

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

Clear

23°F

-5°C

Humidity	85%
Wind Speed	N 3 MPH
Barometer	30.29 in (1025.74 mb)
Dewpoint	19°F (-7°C)
Visibility	10.00 mi
Last update	31 Dec 08:15 AM PST

More Information:

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

Extended Forecast for

8 Miles ESE Mammoth Lakes CA

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

Click here for hazard details and duration

Winter Storm Watch

Today
High: 40 °F
Chance
Rain/Snow
then
Rain/Snow
Likely
Tonight
Low: 33 °F
Rain/Snow
Likely
New Year's Day
High: 38 °F
Rain/Snow
Likely
Thursday Night
Low: 28 °F
Chance Snow
Friday
High: 40 °F
Chance Snow
Friday Night
Low: 28 °F
Snow Likely
Saturday
High: 35 °F
Snow
Saturday Night
Low: 26 °F
Snow Likely
Sunday
High: 33 °F
Heavy Snow

Detailed Forecast

Today

Rain and snow likely, mainly after 1pm. Snow level 8600 feet. Cloudy, with a high near 40. Calm wind becoming northeast around 5 mph in the afternoon. Chance of precipitation is 70%. Little or no snow accumulation expected.

Tonight

Rain and snow likely. Snow level 9300 feet. Mostly cloudy, with a low around 33. Southwest wind around 5 mph. Chance of precipitation is 70%. New snow accumulation of less than a half inch possible.

New Year's Day

Rain and snow likely, becoming all snow after 1pm. Snow level 9000 feet lowering to 8300 feet in the afternoon . Mostly cloudy, with a high near 38. Southwest wind 5 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 70%. New snow accumulation of less than a half inch possible.

Thursday Night

A 30 percent chance of snow, mainly before 10pm. Partly cloudy, with a low around 28. Southwest wind 5 to 10 mph, with gusts as high as 20 mph. Little or no snow accumulation expected.

Friday

A 30 percent chance of snow, mainly between 10am and 4pm. Mostly sunny, with a high near 40. South wind 5 to 10 mph, with gusts as high as 25 mph. Little or no snow accumulation expected.

Friday Night

Snow likely, mainly after 10pm. Mostly cloudy, with a low around 28. South wind around 15 mph, with gusts as high as 30 mph. Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.

Saturday

Snow. High near 35. Chance of precipitation is 90%. New snow accumulation of 1 to 3 inches possible.

Saturday Night

Snow likely. Mostly cloudy, with a low around 26.

Sunday

Snow likely. The snow could be heavy at times. Mostly cloudy, with a high near 33.

Sunday Night

Snow likely, mainly before 10pm. Mostly cloudy, with a low around 23.

Monday

A chance of snow. Partly sunny, with a high near 33.

Monday Night

A chance of snow. Mostly cloudy, with a low around 22.