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 Weather Advisory until December 26, 07:00 AM PST

Current conditions at

BLACK ROCK (OKFO3)

Lat: 43.52831°NLon: 121.81601°WElev: 4891.0ft.

32°F

0°C

Humidity	93%
Wind Speed	ENE 3 MPH
Barometer	NA
Dewpoint	30°F (-1°C)
Visibility	NA
Last update	25 Dec 10:15 PM PST

More Information:

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

Extended Forecast for

5 Miles NNE Chemult OR

Winter Weather Advisory December 25, 10:45pm until December 26, 07:00am

Click here for hazard details and duration

Winter Weather Advisory

Winter Weather Advisory December 25, 10:45pm until December 26, 07:00am
NOW until 7:00am Fri
Winter Weather Advisory
Tonight
Low: 24 °F
Snow Showers
Friday
High: 37 °F
Snow Showers
Friday Night
Low: 20 °F
Snow then
Snow Likely
Saturday
High: 32 °F
Chance Snow
Saturday Night
Low: 15 °F
Mostly Cloudy
Sunday
High: 38 °F
Mostly Sunny
Sunday Night
Low: 18 °F
Partly Cloudy
Monday
High: 43 °F
Sunny

Detailed Forecast

Tonight

Snow showers, mainly before 2am. Low around 24. South wind 9 to 11 mph, with gusts as high as 18 mph. Chance of precipitation is 90%. Total nighttime snow accumulation of 1 to 3 inches possible.

Friday

Snow showers, mainly before 3pm, then snow after 4pm. High near 37. South southwest wind around 11 mph, with gusts as high as 18 mph. Chance of precipitation is 90%. New snow accumulation of less than one inch possible.

Friday Night

Snow. Low around 20. West wind around 9 mph. Chance of precipitation is 90%. New snow accumulation of less than a half inch possible.

Saturday

A 50 percent chance of snow. Partly sunny, with a high near 32. West northwest wind 8 to 11 mph, with gusts as high as 18 mph. New snow accumulation of less than a half inch possible.

Saturday Night

Mostly cloudy, with a low around 15. Calm wind.

Sunday

Mostly sunny, with a high near 38.

Sunday Night

Partly cloudy, with a low around 18.

Monday

Sunny, with a high near 43.

Monday Night

Partly cloudy, with a low around 22.

Tuesday

Mostly sunny, with a high near 48.