Lake Effect Snow through Friday; Heavy Rain, Thunderstorms and Mountain Snow in California

Periods of moderate to heavy lake effect snow will continue through Friday downwind of Lake Erie and Ontario. Several additional inches of accumulating snow are expected. A Pacific storm will bring heavy rain and mountain snow across California, the Southwest and Intermountain West today. Isolated severe thunderstorms and scattered flash flooding is possible across parts of southern California. Read More >

Hazardous Weather Conditions

Current conditions at

Mammoth Yosemite Airport (KMMH)

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

unknown precip

32°F

0°C

Humidity	92%
Wind Speed	N 0 MPH
Barometer	30.02 in (1016.59 mb)
Dewpoint	30°F (-1°C)
Visibility	10.00 mi
Last update	01 Jan 05:15 AM PST

More Information:

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

Extended Forecast for

7 Miles ESE 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: 30 °F
Rain/Snow
Likely
New Year's Day
High: 42 °F
Rain/Snow
Thursday Night
Low: 21 °F
Slight Chance
Snow then
Partly Cloudy
Friday
High: 44 °F
Mostly Sunny
Friday Night
Low: 24 °F
Chance Snow
then Snow
Likely
Saturday
High: 43 °F
Rain/Snow
Saturday Night
Low: 24 °F
Snow
Sunday
High: 40 °F
Snow

Detailed Forecast

Overnight

Rain and snow likely. Snow level 8900 feet. Mostly cloudy, with a low around 30. Calm wind. Chance of precipitation is 60%. Total nighttime snow accumulation of less than a half inch possible.

New Year's Day

Rain and snow before 1pm, then a chance of snow. Snow level 8700 feet lowering to 7400 feet in the afternoon . High near 42. Southeast wind 5 to 10 mph becoming south in the afternoon. Winds could gust as high as 20 mph. Chance of precipitation is 100%. New snow accumulation of less than a half inch possible.

Thursday Night

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

Friday

Mostly sunny, with a high near 44. Calm wind becoming south around 5 mph in the afternoon.

Friday Night

Snow likely, mainly after 4am. Mostly cloudy, with a low around 24. South wind around 5 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 43. South wind 10 to 15 mph, with gusts as high as 30 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 24. Chance of precipitation is 80%. New snow accumulation of 1 to 2 inches possible.

Sunday

Snow. Cloudy, with a high near 40.

Sunday Night

Snow. Cloudy, with a low around 22.

Monday

Snow. Mostly cloudy, with a high near 37.

Monday Night

Snow likely. Mostly cloudy, with a low around 15.

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 15.