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 in effect from December 23, 10:00 PM PST until December 26, 10:00 AM PST

Current conditions at

ROCK CREEK (RCEC1)

Lat: 37.55983°NLon: 118.67841°WElev: 7103.0ft.

33°F

1°C

Humidity	100%
Wind Speed	NW 0 MPH
Barometer	NA
Dewpoint	33°F (1°C)
Visibility	NA
Last update	24 Dec 10:04 AM PST

More Information:

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

Extended Forecast for

15 Miles WSW Chalfant CA

Winter Storm Warning until December 26, 10:00am

Click here for hazard details and duration

Winter Storm Warning

Winter Storm Warning until December 26, 10:00am
NOW until 10:00am Fri
Winter Storm Warning
Today
High: 48 °F
Rain
Tonight
Low: 38 °F
Rain/Snow
Christmas Day
High: 47 °F
Rain/Snow
Thursday Night
Low: 38 °F
Rain/Snow and
Breezy
Friday
High: 45 °F
Rain/Snow
Friday Night
Low: 27 °F
Chance Snow
Saturday
High: 42 °F
Slight Chance
Snow
Saturday Night
Low: 28 °F
Mostly Clear

Detailed Forecast

Today

Rain. Snow level 7700 feet. High near 48. Southeast wind around 15 mph. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.

Tonight

Rain before 10pm, then rain and snow between 10pm and 4am, then rain likely after 4am. Snow level 6500 feet. Low around 38. Southeast wind around 15 mph. Chance of precipitation is 80%. Little or no snow accumulation expected.

Christmas Day

Rain and snow before 1pm, then rain between 1pm and 4pm, then rain and snow after 4pm. Snow level 6400 feet. High near 47. South wind around 15 mph, with gusts as high as 25 mph. Chance of precipitation is 100%. Little or no snow accumulation expected.

Thursday Night

Rain and snow before 7pm, then rain between 7pm and 1am, then rain and snow after 1am. Snow level 6100 feet. Low around 38. Breezy, with a south wind 15 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 90%. Little or no snow accumulation expected.

Friday

Rain and snow. Snow level 5500 feet. High near 45. South wind around 10 mph, with gusts as high as 20 mph. Chance of precipitation is 90%. Little or no snow accumulation expected.

Friday Night

A 50 percent chance of snow. Mostly cloudy, with a low around 27. West wind around 10 mph. Little or no snow accumulation expected.

Saturday

A 20 percent chance of snow. Mostly sunny, with a high near 42.

Saturday Night

Mostly clear, with a low around 28.

Sunday

Sunny, with a high near 44.

Sunday Night

Mostly clear, with a low around 30.

Monday

Sunny, with a high near 48.