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

55°F

13°C

Humidity	87%
Wind Speed	SSE 14 MPH
Barometer	29.62 in (1003.05 mb)
Dewpoint	52°F (11°C)
Visibility	10.00 mi
Last update	24 Dec 09:35 PM PST

More Information:

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

Extended Forecast for

3 Miles NNE Pleasant Hill CA

Flood Watch December 24, 09:50pm until December 26, 10:00pm

Wind Advisory until December 25, 10:00am

Click here for hazard details and duration

Flood Watch

Wind Advisory

Flood Watch December 24, 09:50pm until December 26, 10:00pm
Wind Advisory until December 25, 10:00am
NOW: Multiple hazards in effect
Click HERE for Details
Tonight
Low: 55 °F
Breezy.
Showers then
Severe
Thunderstorms
Christmas Day
High: 58 °F
Severe
Thunderstorms
and Breezy
Thursday Night
Low: 53 °F
Severe
Thunderstorms
then Showers
Friday
High: 54 °F
Showers
Friday Night
Low: 44 °F
Chance
Showers
Saturday
High: 53 °F
Slight Chance
Showers then
Mostly Sunny
Saturday Night
Low: 39 °F
Mostly Clear
Sunday
High: 51 °F
Mostly Sunny

Detailed Forecast

Tonight

Showers and possibly a thunderstorm. Some of the storms could be severe. Steady temperature around 55. Breezy, with a south wind 18 to 26 mph, with gusts as high as 44 mph. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.

Christmas Day

Showers and possibly a thunderstorm before 7am, then showers between 7am and 10am, then showers and possibly a thunderstorm after 10am. Some of the storms could be severe. High near 58. Breezy, with a south southwest wind 18 to 22 mph, with gusts as high as 33 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.

Thursday Night

Showers and possibly a thunderstorm. Some of the storms could be severe. Steady temperature around 53. South southwest wind 17 to 21 mph, with gusts as high as 41 mph. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.

Friday

Showers. High near 54. South wind around 11 mph, with gusts as high as 20 mph. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.

Friday Night

A 50 percent chance of showers, mainly before 4am. Mostly cloudy, with a low around 44. South wind around 6 mph. New precipitation amounts of less than a tenth of an inch possible.

Saturday

A 20 percent chance of showers before 10am. Partly sunny, with a high near 53.

Saturday Night

Mostly clear, with a low around 39.

Sunday

Mostly sunny, with a high near 51.

Sunday Night

Areas of frost after 3am. Otherwise, mostly clear, with a low around 36.

Monday

Patchy frost before 7am. Otherwise, sunny, with a high near 52.

Monday Night

Mostly clear, with a low around 37.