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

Flood Watch until December 26, 10:00 PM PST

Current conditions at

Berkeley Lab (LBNL1)

Lat: 37.8771°NLon: 122.2486°WElev: 888.0ft.

51°F

11°C

Humidity	74%
Wind Speed	SSW 6 MPH
Barometer	NA
Dewpoint	43°F (6°C)
Visibility	NA
Last update	26 Dec 12:45 AM PST

More Information:

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

Extended Forecast for

4 Miles WNW Pinole CA

Flood Watch December 26, 01:02am until December 26, 10:00pm

Click here for hazard details and duration

Flood Watch

Flood Watch December 26, 01:02am until December 26, 10:00pm
NOW until 10:00pm Fri
Flood Watch
Overnight
Low: 51 °F
Chance
Showers and
Breezy
Friday
High: 54 °F
Showers
Likely and
Breezy
Friday Night
Low: 46 °F
Showers
Likely then
Chance
Showers
Saturday
High: 51 °F
Slight Chance
Showers
Saturday Night
Low: 41 °F
Partly Cloudy
Sunday
High: 50 °F
Mostly Sunny
Sunday Night
Low: 40 °F
Mostly Clear
Monday
High: 51 °F
Sunny

Detailed Forecast

Overnight

A 40 percent chance of showers. Mostly cloudy, with a low around 51. Breezy, with a south southwest wind around 22 mph, with gusts as high as 34 mph. New precipitation amounts of less than a tenth of an inch possible.

Friday

Showers likely, with thunderstorms also possible after 4pm. Mostly cloudy, with a high near 54. Breezy, with a south wind 14 to 22 mph, with gusts as high as 31 mph. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

Friday Night

A chance of showers and thunderstorms, then showers likely after 9pm. Mostly cloudy, with a low around 46. South wind around 10 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

Saturday

A 20 percent chance of showers. Mostly sunny, with a high near 51. North wind around 7 mph.

Saturday Night

Partly cloudy, with a low around 41. North wind around 6 mph.

Sunday

Mostly sunny, with a high near 50.

Sunday Night

Mostly clear, with a low around 40.

Monday

Sunny, with a high near 51.

Monday Night

Mostly clear, with a low around 39.