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 SE Mammoth Lakes CA

Flood Watch December 25, 04:39am until December 26, 04:00pm

Winter Storm Warning December 25, 04:39am until December 26, 10:00pm

Click here for hazard details and duration

Flood Watch

Winter Storm Warning

Flood Watch December 25, 04:39am until December 26, 04:00pm
Winter Storm Warning December 25, 04:39am until December 26, 10:00pm
NOW: Multiple hazards in effect
Click HERE for Details
Overnight
Low: 16 °F
Snow and
Windy
Christmas Day
High: 19 °F
Snow and
Windy
Thursday Night
Low: 17 °F
Snow Showers
and Windy
Friday
High: 18 °F
Snow and
Windy
Friday Night
Low: 2 °F
Chance Snow
Saturday
High: 17 °F
Slight Chance
Snow
Saturday Night
Low: 2 °F
Mostly Clear
then Mostly
Clear and
Breezy
Sunday
High: 21 °F
Mostly Sunny
and Breezy
then Sunny

Detailed Forecast

Overnight

Snow. Low around 16. Wind chill values as low as -6. Windy, with a south southwest wind around 35 mph, with gusts as high as 55 mph. Chance of precipitation is 100%. Total nighttime snow accumulation of 8 to 12 inches possible.

Christmas Day

Snow. High near 19. Wind chill values as low as -6. Windy, with a south southwest wind 30 to 35 mph, with gusts as high as 55 mph. Chance of precipitation is 100%. New snow accumulation of 16 to 22 inches possible.

Thursday Night

Snow showers. Some thunder is also possible. Steady temperature around 17. Wind chill values as low as -6. Windy, with a south southwest wind 35 to 40 mph, with gusts as high as 55 mph. Chance of precipitation is 100%. New snow accumulation of 11 to 17 inches possible.

Friday

Snow before 10am, then snow showers between 10am and 1pm, then snow after 1pm. Some thunder is also possible. High near 18. Wind chill values as low as -8. Windy, with a southwest wind 25 to 35 mph, with gusts as high as 55 mph. Chance of precipitation is 100%. New snow accumulation of 7 to 11 inches possible.

Friday Night

A 50 percent chance of snow. Mostly cloudy, with a low around 2. Southwest wind around 15 mph, with gusts as high as 25 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 17. West northwest wind 10 to 15 mph.

Saturday Night

Mostly clear, with a low around 2. Breezy, with a west southwest wind 15 to 20 mph, with gusts as high as 25 mph.

Sunday

Sunny and cold, with a high near 21. Breezy, with a west wind 15 to 20 mph, with gusts as high as 25 mph.

Sunday Night

Mostly clear, with a low around 8. Blustery, with a north northwest wind 15 to 20 mph, with gusts as high as 30 mph.

Monday

Sunny and cold, with a high near 26. Blustery, with a north northeast wind 15 to 20 mph, with gusts as high as 30 mph.

Monday Night

Mostly clear, with a low around 15. North northwest wind around 15 mph, with gusts as high as 20 mph.