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

COAST DAIRIES (XCDC1)

Lat: 37.03083°NLon: 122.18781°WElev: 703.0ft.

59°F

15°C

Humidity	81%
Wind Speed	S 14 MPH
Barometer	NA
Dewpoint	53°F (12°C)
Visibility	NA
Last update	25 Dec 12:09 PM PST

More Information:

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

Extended Forecast for

3 Miles SW Ben Lomond CA

Flood Watch December 25, 01:03pm until December 26, 10:00pm

Click here for hazard details and duration

Flood Watch

Flood Watch December 25, 01:03pm until December 26, 10:00pm
NOW until 10:00pm Fri
Flood Watch
Christmas Day
High: 54 °F
Severe
Thunderstorms
Tonight
Low: 45 °F
Severe
Thunderstorms
then Showers
Likely
Friday
High: 52 °F
Showers
Likely then
Showers
Friday Night
Low: 41 °F
Showers
Likely
Saturday
High: 54 °F
Slight Chance
Showers
Saturday Night
Low: 36 °F
Mostly Clear
then Patchy
Frost
Sunday
High: 56 °F
Areas Frost
then Sunny
Sunday Night
Low: 36 °F
Clear then
Patchy Frost

Detailed Forecast

Christmas Day

Showers and possibly a thunderstorm. Some of the storms could be severe. High near 54. South wind around 14 mph, with gusts as high as 31 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.

Tonight

Showers and possibly a thunderstorm before 11pm, then showers likely. Some of the storms could be severe. Low around 45. South southwest wind 9 to 14 mph, with gusts as high as 34 mph. Chance of precipitation is 80%. New precipitation amounts between a half and three quarters of an inch possible.

Friday

Showers, with thunderstorms also possible after 4pm. High near 52. South wind 6 to 9 mph, with gusts as high as 22 mph. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.

Friday Night

Showers likely and possibly a thunderstorm before 10pm, then a chance of showers. Mostly cloudy, with a low around 41. Calm wind. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

Saturday

A 20 percent chance of showers. Mostly sunny, with a high near 54. North northwest wind 3 to 5 mph.

Saturday Night

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

Sunday

Areas of frost before 8am. Otherwise, sunny, with a high near 56.

Sunday Night

Patchy frost after 1am. Otherwise, clear, with a low around 36.

Monday

Areas of frost before 8am. Otherwise, sunny, with a high near 60.

Monday Night

Clear, with a low around 38.