Atmospheric River Bringing Heavy Rain to Southern California and Heavy Snow to the Sierra Nevadas

A strong atmospheric river will continue heavy rain over southern California through Friday. The heaviest rainfall is ongoing today in the Los Angeles Basin. Flash and urban flooding is possible. A prolonged heavy snowfall has begun over the Sierra Nevada Mountains and will continue through Friday. Travel will become increasingly difficult over the passes due to snow and strong winds. Read More >

Hazardous Weather Conditions

Current conditions at

DW5868 Mammoth Lakes (D5868)

Lat: 37.625°NLon: 118.98°WElev: 7973.0ft.

30°F

-1°C

Humidity	92%
Wind Speed	W 2 MPH
Barometer	29.87 in (1011.51 mb)
Dewpoint	28°F (-2°C)
Visibility	NA
Last update	25 Dec 03:00 PM PST

More Information:

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

Extended Forecast for

2 Miles SSW Mammoth Lakes CA

Winter Storm Warning December 25, 03:22pm until December 26, 10:00am

Click here for hazard details and duration

Winter Storm Warning

Winter Storm Warning December 25, 03:22pm until December 26, 10:00am
NOW until 10:00am Fri
Winter Storm Warning
Christmas Day
High: 27 °F
Heavy Snow
and Windy
Tonight
Low: 22 °F
Heavy Snow
and Windy
Friday
High: 27 °F
Heavy Snow
and Windy
Friday Night
Low: 11 °F
Snow Likely
then Slight
Chance Snow
Saturday
High: 26 °F
Sunny
Saturday Night
Low: 12 °F
Mostly Clear
Sunday
High: 29 °F
Sunny
Sunday Night
Low: 16 °F
Mostly Clear

Detailed Forecast

Christmas Day

Snow before 4pm, then snow showers after 4pm. The snow could be heavy at times. Some thunder is also possible. High near 27. Windy, with a southwest wind around 30 mph, with gusts as high as 45 mph. Chance of precipitation is 90%. Total daytime snow accumulation of 13 to 19 inches possible.

Tonight

Snow showers before 7pm, then snow between 7pm and 10pm, then snow showers after 10pm. The snow could be heavy at times. Some thunder is also possible. Low around 22. Windy, with a southwest wind around 35 mph, with gusts as high as 55 mph. Chance of precipitation is 100%. New snow accumulation of 11 to 17 inches possible.

Friday

Snow, mainly before 4pm. The snow could be heavy at times. High near 27. Windy, with a southwest wind 25 to 30 mph decreasing to 20 to 25 mph in the afternoon. Winds could gust as high as 50 mph. Chance of precipitation is 80%. New snow accumulation of 7 to 11 inches possible.

Friday Night

Snow likely, mainly between 7pm and 10pm. Mostly cloudy, with a low around 11. Southwest wind 10 to 15 mph. Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.

Saturday

Sunny, with a high near 26. West wind around 5 mph becoming calm in the morning.

Saturday Night

Mostly clear, with a low around 12. West wind 5 to 10 mph.

Sunday

Sunny, with a high near 29.

Sunday Night

Mostly clear, with a low around 16.

Monday

Sunny, with a high near 34.

Monday Night

Mostly clear, with a low around 22.