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

An Alberta clipper will bring lake effect snow downwind of the Great Lakes, with the highest snow totals downwind of Lakes Erie and Ontario. Snow squalls may impact New Year's Eve travel during the evening and overnight hours across parts of the Great Lakes, Ohio Valley, and Northeast. Heavy rain will bring a flash flooding threat for southern California on 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

23°F

-5°C

Humidity	67%
Wind Speed	N 0 MPH
Barometer	30.36 in (1028.11 mb)
Dewpoint	14°F (-10°C)
Visibility	10.00 mi
Last update	30 Dec 06:55 PM PST

More Information:

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

Extended Forecast for

10 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

Tonight
Low: 8 °F
Mostly Cloudy
Wednesday
High: 42 °F
Rain/Snow
Likely
Wednesday Night
Low: 23 °F
Wintry Mix
New Year's Day
High: 44 °F
Rain/Snow
then Rain
Thursday Night
Low: 23 °F
Chance Rain
Friday
High: 45 °F
Chance
Rain/Snow
Friday Night
Low: 23 °F
Rain/Snow
Likely
Saturday
High: 42 °F
Snow
Saturday Night
Low: 17 °F
Snow Likely

Detailed Forecast

Tonight

Mostly cloudy, with a low around 8. Calm wind.

Wednesday

Rain and snow likely, mainly after 1pm. Snow level 7100 feet rising to 7800 feet in the afternoon. Cloudy, with a high near 42. Calm wind. Chance of precipitation is 70%. Little or no snow accumulation expected.

Wednesday Night

Rain, snow, and freezing rain before 4am, then rain likely between 4am and 5am, then snow likely after 5am. Snow level 8100 feet. Low around 23. Calm wind. Chance of precipitation is 80%. Little or no ice accumulation expected. Little or no snow accumulation expected.

New Year's Day

Snow likely before 7am, then rain. Snow level 8500 feet. High near 44. Calm wind becoming south around 5 mph in the afternoon. Chance of precipitation is 80%. Little or no snow accumulation expected.

Thursday Night

A 30 percent chance of rain, mainly before 10pm. Snow level 8200 feet. Mostly cloudy, with a low around 23. Southwest wind around 5 mph becoming calm in the evening.

Friday

A chance of rain and snow between 10am and 1pm, then a chance of rain after 1pm. Snow level 7600 feet. Partly 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 chance of rain before 7pm, then rain and snow likely. Snow level 7300 feet. Mostly cloudy, with a low around 23. Chance of precipitation is 60%. New snow accumulation of less than one inch possible.

Saturday

Snow. Mostly cloudy, with a high near 42.

Saturday Night

Snow likely, mainly before 4am. Mostly cloudy, with a low around 17.

Sunday

Snow likely, mainly after 10am. Mostly cloudy, with a high near 41.

Sunday Night

A chance of snow. Mostly cloudy, with a low around 14.

Monday

A chance of snow. Partly sunny, with a high near 40.

Monday Night

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