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

Wind Advisory in effect from December 25, 01:00 AM PST until December 25, 01:00 PM PST

Current conditions at

BLACK ROCK (OKFO3)

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

34°F

1°C

Humidity	97%
Wind Speed	ESE 3 MPH
Barometer	NA
Dewpoint	33°F (1°C)
Visibility	NA
Last update	25 Dec 04:15 AM PST

More Information:

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

Extended Forecast for

12 Miles ENE Chemult OR

Wind Advisory until December 25, 01:00pm

Click here for hazard details and duration

Wind Advisory

Wind Advisory until December 25, 01:00pm
NOW until 1:00pm Thu
Wind Advisory
Overnight
Low: 28 °F
Slight Chance
Snow Showers
Christmas Day
High: 37 °F
Snow Showers
Likely
Thursday Night
Low: 25 °F
Snow Showers
Friday
High: 35 °F
Snow
Friday Night
Low: 20 °F
Snow then
Chance Snow
Saturday
High: 30 °F
Chance Snow
Saturday Night
Low: 15 °F
Mostly Cloudy
Sunday
High: 36 °F
Mostly Sunny

Detailed Forecast

Overnight

A 20 percent chance of snow showers after 5am. Mostly cloudy, with a low around 28. South southeast wind around 15 mph, with gusts as high as 22 mph.

Christmas Day

Snow showers likely, mainly between 9am and noon. Mostly cloudy, with a high near 37. South wind 16 to 18 mph, with gusts as high as 31 mph. Chance of precipitation is 60%. New snow accumulation of less than one inch possible.

Thursday Night

Snow showers. Low around 25. South wind 10 to 13 mph, with gusts as high as 20 mph. Chance of precipitation is 80%. New snow accumulation of 1 to 3 inches possible.

Friday

Snow showers likely before 10am, then snow after 10am. High near 35. South wind 11 to 13 mph, with gusts as high as 20 mph. Chance of precipitation is 90%. New snow accumulation of around an inch possible.

Friday Night

Snow, mainly before 10pm. Low around 20. West southwest wind around 9 mph, with gusts as high as 24 mph. Chance of precipitation is 80%. New snow accumulation of less than a half inch possible.

Saturday

A 30 percent chance of snow, mainly before 10am. Partly sunny, with a high near 30. Little or no snow accumulation expected.

Saturday Night

Mostly cloudy, with a low around 15.

Sunday

Mostly sunny, with a high near 36.

Sunday Night

Partly cloudy, with a low around 17.

Monday

Mostly sunny, with a high near 40.

Monday Night

Partly cloudy, with a low around 21.