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

Current conditions at

Concord, Buchanan Field (KCCR)

Lat: 37.99167°NLon: 122.05194°WElev: 23.0ft.

Rain

59°F

15°C

Humidity	67%
Wind Speed	S 8 MPH
Barometer	29.69 in (1005.42 mb)
Dewpoint	48°F (9°C)
Visibility	10.00 mi
Last update	24 Dec 11:20 AM PST

More Information:

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

Extended Forecast for

5 Miles SE Benicia CA

Flood Watch December 24, 11:40am until December 26, 10:00pm

Wind Advisory December 24, 08:00pm until December 25, 10:00am

Click here for hazard details and duration

Flood Watch

Wind Advisory

Flood Watch December 24, 11:40am until December 26, 10:00pm
NOW until 10:00pm Fri
Flood Watch
Today
High: 59 °F
Severe
Thunderstorms
Tonight
Low: 55 °F
Severe
Thunderstorms
Christmas Day
High: 55 °F
Severe
Thunderstorms
then Showers
Thursday Night
Low: 49 °F
Severe
Thunderstorms
Friday
High: 53 °F
Showers
Friday Night
Low: 45 °F
Showers
Likely and
Patchy Fog
Saturday
High: 52 °F
Slight Chance
Showers and
Areas Fog
then Patchy
Fog
Saturday Night
Low: 40 °F
Mostly Clear

Detailed Forecast

Today

Showers before 4pm, then a chance of showers and thunderstorms between 4pm and 5pm, then showers and possibly a thunderstorm after 5pm. Some of the storms could be severe. High near 59. South southeast wind 5 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 90%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

Tonight

Showers and thunderstorms likely, then showers and possibly a thunderstorm after 1am. Some of the storms could be severe. Steady temperature around 55. Southeast wind 8 to 13 mph increasing to 15 to 20 mph after midnight. Winds could gust as high as 40 mph. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.

Christmas Day

Showers likely and possibly a thunderstorm, then showers after 7am. Some of the storms could be severe. High near 55. South wind 13 to 18 mph, with gusts as high as 37 mph. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.

Thursday Night

Showers and possibly a thunderstorm. Some of the storms could be severe. Low around 49. South wind 11 to 14 mph, with gusts as high as 28 mph. Chance of precipitation is 100%. New rainfall amounts between a quarter and half of an inch possible.

Friday

Showers, with thunderstorms also possible after 4pm. High near 53. South wind 11 to 13 mph, with gusts as high as 23 mph. Chance of precipitation is 90%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

Friday Night

Showers likely and possibly a thunderstorm before 10pm, then a chance of showers and thunderstorms, mainly between 10pm and 4am. Patchy fog. Otherwise, mostly cloudy, with a low around 45. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

Saturday

A 20 percent chance of showers before 10am. Areas of fog before 1pm. Otherwise, partly sunny, with a high near 52.

Saturday Night

Mostly clear, with a low around 40.

Sunday

Mostly sunny, with a high near 49.

Sunday Night

Patchy fog after 5am. Otherwise, mostly clear, with a low around 38.

Monday

Patchy fog. Otherwise, mostly sunny, with a high near 50.

Monday Night

Patchy fog. Otherwise, partly cloudy, with a low around 39.