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	5.00 mi
Last update	01 Jan 01:35 AM PST

More Information:

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

Extended Forecast for

12 Miles ENE 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: 29 °F
Rain/Snow
New Year's Day
High: 42 °F
Rain/Snow
Thursday Night
Low: 18 °F
Slight Chance
Snow then
Partly Cloudy
Friday
High: 43 °F
Mostly Sunny
Friday Night
Low: 22 °F
Chance Snow
then Snow
Likely
Saturday
High: 43 °F
Rain/Snow
then Rain
Saturday Night
Low: 22 °F
Rain/Snow
then Snow
Likely
Sunday
High: 41 °F
Snow then
Rain/Snow

Detailed Forecast

Overnight

Rain and snow, mainly before 4am. Snow level 8500 feet. Low around 29. Calm wind. Chance of precipitation is 80%. Little or no snow accumulation expected.

New Year's Day

Rain and snow before 1pm, then a chance of rain between 1pm and 4pm, then a chance of rain and snow after 4pm. Snow level 8500 feet lowering to 7500 feet in the afternoon . High near 42. Calm wind becoming south around 5 mph in the morning. Chance of precipitation is 90%. Little or no snow accumulation expected.

Thursday Night

A 10 percent chance of snow before 7pm. Partly cloudy, with a low around 18. Northwest wind around 5 mph becoming calm in the evening.

Friday

Mostly sunny, with a high near 43. Calm wind becoming south around 5 mph in the afternoon.

Friday Night

Snow likely, mainly after 4am. Snow level 6800 feet. Mostly cloudy, with a low around 22. South wind around 5 mph. Chance of precipitation is 60%. Little or no snow accumulation expected.

Saturday

Rain and snow likely before 10am, then rain. Snow level 7500 feet. High near 43. South wind 5 to 15 mph. Chance of precipitation is 90%. Little or no snow accumulation expected.

Saturday Night

Rain and snow, becoming all snow after 10pm. Snow level 6900 feet. Low around 22. Chance of precipitation is 80%. New snow accumulation of less than a half inch possible.

Sunday

Snow before 1pm, then rain and snow. Cloudy, with a high near 41.

Sunday Night

Rain and snow, becoming all snow after 7pm. Mostly cloudy, with a low around 20.

Monday

Snow likely, mainly before 4pm. Mostly cloudy, with a high near 39.

Monday Night

Snow likely. Mostly cloudy, with a low around 14.

Tuesday

A chance of snow. Partly sunny, with a high near 38.

Tuesday Night

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