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

Winter Storm Warning until December 26, 10:00 AM PST

Current conditions at

DEXTER (DEXC1)

Lat: 37.83888°NLon: 118.77189°WElev: 7981.0ft.

29°F

-2°C

Humidity	88%
Wind Speed	S 11 MPH
Barometer	NA
Dewpoint	26°F (-3°C)
Visibility	NA
Wind Chill	19°F (-7°C)
Last update	25 Dec 01:53 AM PST

More Information:

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

Extended Forecast for

13 Miles NE Mammoth Lakes CA

Winter Storm Warning December 25, 02:17am until December 26, 10:00am

Click here for hazard details and duration

Winter Storm Warning

Winter Storm Warning December 25, 02:17am until December 26, 10:00am
NOW until 10:00am Fri
Winter Storm Warning
Overnight
Low: 25 °F
Snow and
Breezy
Christmas Day
High: 38 °F
Heavy Snow
and Patchy
Freezing Fog
Thursday Night
Low: 23 °F
Heavy Snow
and Patchy
Fog
Friday
High: 38 °F
Heavy Snow
and Patchy
Freezing Fog
Friday Night
Low: 8 °F
Chance Snow
Saturday
High: 36 °F
Slight Chance
Snow
Saturday Night
Low: 4 °F
Mostly Clear
Sunday
High: 39 °F
Becoming
Sunny

Detailed Forecast

Overnight

Snow, mainly before 4am. Low around 25. Breezy, with a south wind around 20 mph, with gusts as high as 30 mph. Chance of precipitation is 80%. Total nighttime snow accumulation of 1 to 3 inches possible.

Christmas Day

Snow. The snow could be heavy at times. Patchy fog between 11am and noon. Patchy freezing fog between 9am and 11am. High near 38. Breezy, with a south wind 15 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 100%. New snow accumulation of 4 to 8 inches possible.

Thursday Night

Snow. The snow could be heavy at times. Patchy fog after 4am. Low around 23. Breezy, with a south wind around 20 mph, with gusts as high as 35 mph. Chance of precipitation is 90%. New snow accumulation of 4 to 8 inches possible.

Friday

Snow, mainly before 4pm. The snow could be heavy at times. Patchy freezing fog before 9am. High near 38. Southwest wind around 15 mph, with gusts as high as 25 mph. Chance of precipitation is 90%. New snow accumulation of 2 to 4 inches possible.

Friday Night

A 40 percent chance of snow, mainly before 10pm. Partly cloudy, with a low around 8. West wind 5 to 10 mph. Little or no snow accumulation expected.

Saturday

A 20 percent chance of snow. Mostly sunny, with a high near 36. West wind around 5 mph becoming north in the afternoon.

Saturday Night

Mostly clear, with a low around 4.

Sunday

Partly sunny, then gradually becoming sunny, with a high near 39.

Sunday Night

Mostly clear, with a low around 9.

Monday

Sunny, with a high near 44.