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

DEVILS POST PILE RAWS NEAR MAMMOTH LAKES 6WSW DPO (DPPC1)

Lat: 37.63°NLon: 119.09333°WElev: 8024.0ft.

30°F

-1°C

Humidity	97%
Wind Speed	SSE 0 MPH
Barometer	NA
Dewpoint	29°F (-2°C)
Visibility	NA
Last update	25 Dec 04:00 AM PST

More Information:

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

Extended Forecast for

12 Miles SW Mammoth Lakes CA

Flood Watch December 25, 04:47am until December 26, 04:00pm

Winter Storm Warning December 25, 04:47am until December 26, 10:00pm

Click here for hazard details and duration

Flood Watch

Winter Storm Warning

Flood Watch December 25, 04:47am until December 26, 04:00pm
Winter Storm Warning December 25, 04:47am until December 26, 10:00pm
NOW: Multiple hazards in effect
Click HERE for Details
Overnight
Low: 27 °F
Snow and
Breezy
Christmas Day
High: 28 °F
Snow and
Breezy
Thursday Night
Low: 23 °F
Snow Showers
and Breezy
Friday
High: 28 °F
Snow and
Breezy
Friday Night
Low: 15 °F
Chance Snow
then Slight
Chance Snow
Saturday
High: 27 °F
Slight Chance
Snow
Saturday Night
Low: 17 °F
Mostly Clear
Sunday
High: 33 °F
Sunny

Detailed Forecast

Overnight

Snow. Low around 27. Wind chill values as low as 13. Breezy, with a south southwest wind 20 to 25 mph, with gusts as high as 40 mph. Chance of precipitation is 100%. Total nighttime snow accumulation of 7 to 11 inches possible.

Christmas Day

Snow before 1pm, then snow showers after 1pm. Some thunder is also possible. High near 28. Wind chill values as low as 11. Breezy, with a south southwest wind around 20 mph, with gusts as high as 40 mph. Chance of precipitation is 100%. New snow accumulation of 12 to 18 inches possible.

Thursday Night

Snow showers. Some thunder is also possible. Low around 23. Wind chill values as low as 11. Breezy, with a south southwest wind around 25 mph, with gusts as high as 45 mph. Chance of precipitation is 100%. New snow accumulation of 10 to 14 inches possible.

Friday

Snow before 10am, then snow showers between 10am and 1pm, then snow after 1pm. Some thunder is also possible. High near 28. Wind chill values as low as 9. Breezy, with a southwest wind 15 to 20 mph, with gusts as high as 35 mph. Chance of precipitation is 100%. New snow accumulation of 5 to 9 inches possible.

Friday Night

A 50 percent chance of snow, mainly before 10pm. Mostly cloudy, with a low around 15. South southwest wind 5 to 10 mph. New snow accumulation of less than one inch possible.

Saturday

A 20 percent chance of snow. Mostly sunny and cold, with a high near 27. West wind around 5 mph.

Saturday Night

Mostly clear, with a low around 17. North northeast wind 10 to 15 mph.

Sunday

Sunny, with a high near 33. Northeast wind 5 to 10 mph becoming north northwest in the afternoon. Winds could gust as high as 15 mph.

Sunday Night

Clear, with a low around 23. Northeast wind around 15 mph, with gusts as high as 20 mph.

Monday

Sunny, with a high near 39. Northeast wind 5 to 15 mph.

Monday Night

Clear, with a low around 30. Northeast wind 10 to 15 mph.