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

BEN LOMOND (BNDC1)

Lat: 37.13094°NLon: 122.17261°WElev: 2598.0ft.

46°F

8°C

Humidity	100%
Wind Speed	SSW 2 MPH
Barometer	NA
Dewpoint	46°F (8°C)
Visibility	NA
Last update	24 Dec 09:50 AM PST

More Information:

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

Extended Forecast for

Ben Lomond CA

Flood Watch December 24, 10:10am 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, 10:10am until December 26, 10:00pm
NOW until 10:00pm Fri
Flood Watch
Today
High: 58 °F
Chance
Showers then
Severe
Thunderstorms
Tonight
Low: 47 °F
Severe
Thunderstorms
and Breezy
Christmas Day
High: 56 °F
Severe
Thunderstorms
then Showers
Thursday Night
Low: 46 °F
Severe
Thunderstorms
Friday
High: 55 °F
Showers and
Patchy Fog
Friday Night
Low: 43 °F
Showers
Likely and
Patchy Fog
Saturday
High: 57 °F
Chance
Showers and
Patchy Fog
Saturday Night
Low: 37 °F
Mostly Clear

Detailed Forecast

Today

Showers likely, then showers and possibly a thunderstorm after 4pm. Some of the storms could be severe. High near 58. South wind 10 to 17 mph, with gusts as high as 28 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

Tonight

Showers and possibly a thunderstorm before 10pm, then showers between 10pm and 1am, then showers and possibly a thunderstorm after 1am. Some of the storms could be severe. Low around 47. Breezy, with a south southeast wind 15 to 22 mph, with gusts as high as 48 mph. Chance of precipitation is 90%. New rainfall amounts between three quarters and one inch possible.

Christmas Day

Showers likely and possibly a thunderstorm, then showers after 7am. Some of the storms could be severe. High near 56. South wind around 16 mph, with gusts as high as 36 mph. Chance of precipitation is 100%. New precipitation amounts between three quarters and one inch possible.

Thursday Night

Showers and possibly a thunderstorm. Some of the storms could be severe. Low around 46. South southwest wind 9 to 14 mph, with gusts as high as 31 mph. Chance of precipitation is 100%. New rainfall amounts between a half and three quarters of an inch possible.

Friday

Showers, with thunderstorms also possible after 1pm. Patchy fog between 9am and 10am. High near 55. South wind 7 to 9 mph, with gusts as high as 21 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 and thunderstorms after 10pm. Patchy fog after 3am. Otherwise, mostly cloudy, with a low around 43. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.

Saturday

A 30 percent chance of showers. Patchy fog before 10am. Otherwise, mostly sunny, with a high near 57.

Saturday Night

Mostly clear, with a low around 37.

Sunday

Patchy frost before 7am. Otherwise, sunny, with a high near 59.

Sunday Night

Patchy frost after 5am. Otherwise, clear, with a low around 37.

Monday

Patchy frost. Otherwise, sunny, with a high near 62.

Monday Night

Mostly clear, with a low around 41.