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.

Overcast

25°F

-4°C

Humidity	79%
Wind Speed	N 0 MPH
Barometer	30.3 in (1026.08 mb)
Dewpoint	19°F (-7°C)
Visibility	10.00 mi
Last update	31 Dec 05:15 AM PST

More Information:

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

Extended Forecast for

9 Miles ENE 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: 44 °F
Chance
Rain/Snow
then
Rain/Snow
Likely
Tonight
Low: 28 °F
Rain/Snow
Likely
New Year's Day
High: 43 °F
Rain Likely
then
Rain/Snow
Likely
Thursday Night
Low: 22 °F
Chance
Rain/Snow
Friday
High: 45 °F
Chance
Rain/Snow
Friday Night
Low: 24 °F
Rain/Snow
Likely
Saturday
High: 42 °F
Rain/Snow
Saturday Night
Low: 21 °F
Rain/Snow
Likely then
Snow Likely
Sunday
High: 40 °F
Snow Likely

Detailed Forecast

Today

Rain and snow likely, mainly after 1pm. Snow level rising to 7800 feet in the afternoon. Cloudy, with a high near 44. Calm wind becoming east around 5 mph. Chance of precipitation is 60%. Little or no snow accumulation expected.

Tonight

Rain and snow likely, mainly before 10pm. Snow level 8500 feet. Cloudy, with a low around 28. Calm wind. Chance of precipitation is 60%. Little or no snow accumulation expected.

New Year's Day

Rain likely before 1pm, then rain and snow likely between 1pm and 4pm, then a chance of rain after 4pm. Snow level 8300 feet. Mostly cloudy, with a high near 43. Calm wind becoming southwest around 5 mph in the afternoon. Chance of precipitation is 60%. Little or no snow accumulation expected.

Thursday Night

A chance of rain and snow before 1am, then a slight chance of snow between 1am and 4am. Snow level 7200 feet rising to 7800 feet after midnight. Partly cloudy, with a low around 22. Southwest wind around 5 mph becoming calm after midnight. Chance of precipitation is 30%. Little or no snow accumulation expected.

Friday

A chance of rain and snow between 10am and 1pm, then a chance of rain after 1pm. Snow level 7400 feet. Mostly sunny, with a high near 45. Light south wind increasing to 5 to 10 mph in the morning. Chance of precipitation is 30%. Little or no snow accumulation expected.

Friday Night

A slight chance of rain and snow before 10pm, then snow likely between 10pm and 1am, then rain and snow likely after 1am. Snow level 6900 feet. Mostly cloudy, with a low around 24. South wind around 10 mph. Chance of precipitation is 60%. Little or no snow accumulation expected.

Saturday

Snow, possibly mixed with rain. Snow level 7300 feet. High near 42. Chance of precipitation is 80%. Little or no snow accumulation expected.

Saturday Night

Rain and snow likely, becoming all snow after 10pm. Mostly cloudy, with a low around 21.

Sunday

Snow likely. Mostly cloudy, with a high near 40.

Sunday Night

Snow likely, mainly before 10pm. Mostly cloudy, with a low around 17.

Monday

A chance of snow. Mostly cloudy, with a high near 40.

Monday Night

A chance of snow. Mostly cloudy, with a low around 16.