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 PM PST

Current conditions at

Emigrant Gap, Blue Canyon Nyack Airport (KBLU)

Lat: 39.27611°NLon: 120.70806°WElev: 5282.0ft.

Fog

34°F

1°C

Humidity	100%
Wind Speed	S 20 MPH
Barometer	29.84 in (1010.5 mb)
Dewpoint	34°F (1°C)
Visibility	0.25 mi
Wind Chill	23°F (-5°C)
Last update	25 Dec 10:35 AM PST

More Information:

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

Extended Forecast for

8 Miles NNW Donner Summit CA

Winter Storm Warning December 25, 10:59am until December 26, 10:00pm

Click here for hazard details and duration

Winter Storm Warning

Winter Storm Warning December 25, 10:59am until December 26, 10:00pm
NOW until 10:00pm Fri
Winter Storm Warning
Christmas Day
High: 28 °F
Heavy Snow
and Windy
Tonight
Low: 22 °F
Heavy Snow
and Windy
Friday
High: 25 °F
Heavy Snow
and Windy
Friday Night
Low: 19 °F
Snow
Saturday
High: 27 °F
Chance Snow
Saturday Night
Low: 14 °F
Partly Cloudy
Sunday
High: 30 °F
Sunny
Sunday Night
Low: 17 °F
Mostly Clear

Detailed Forecast

Christmas Day

Snow. The snow could be heavy at times. High near 28. Windy, with a south southwest wind 23 to 30 mph, with gusts as high as 50 mph. Chance of precipitation is 100%. Total daytime snow accumulation of 16 to 22 inches possible.

Tonight

Snow. The snow could be heavy at times. Low around 22. Windy, with a south southwest wind 32 to 34 mph, with gusts as high as 55 mph. Chance of precipitation is 100%. New snow accumulation of 19 to 25 inches possible.

Friday

Snow. The snow could be heavy at times. High near 25. Windy, with a south southwest wind 25 to 30 mph decreasing to 18 to 23 mph in the afternoon. Winds could gust as high as 46 mph. Chance of precipitation is 90%. New snow accumulation of 5 to 9 inches possible.

Friday Night

Snow. Low around 19. Southwest wind 11 to 14 mph, with gusts as high as 24 mph. Chance of precipitation is 80%. New snow accumulation of 2 to 4 inches possible.

Saturday

A 40 percent chance of snow. Partly sunny, with a high near 27. Southwest wind around 6 mph becoming light and variable in the afternoon. New snow accumulation of less than a half inch possible.

Saturday Night

Partly cloudy, with a low around 14.

Sunday

Sunny, with a high near 30.

Sunday Night

Mostly clear, with a low around 17.

Monday

Sunny, with a high near 34.

Monday Night

Mostly clear, with a low around 22.

Tuesday

Sunny, with a high near 39.