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

BLACK DIAMOND (PIBC1)

Lat: 37.95°NLon: 121.88444°WElev: 1600.0ft.

49°F

9°C

Humidity	93%
Wind Speed	ENE 9 MPH
Barometer	NA
Dewpoint	47°F (8°C)
Visibility	NA
Wind Chill	45°F (7°C)
Last update	25 Dec 07:28 PM PST

More Information:

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

Extended Forecast for

2 Miles WSW Bethel Island CA

Flood Watch December 25, 07:53pm until December 26, 10:00pm

Flood Advisory December 25, 07:53pm until December 26, 06:00pm

Click here for hazard details and duration

Flood Watch

Flood Advisory

Flood Watch December 25, 07:53pm until December 26, 10:00pm
Flood Advisory December 25, 07:53pm until December 26, 06:00pm
NOW: Multiple hazards in effect
Click HERE for Details
Tonight
Low: 49 °F
Severe
Thunderstorms
then Chance
Showers
Friday
High: 55 °F
Chance
Showers
Friday Night
Low: 46 °F
Chance
Showers
Saturday
High: 50 °F
Partly Sunny
Saturday Night
Low: 41 °F
Partly Cloudy
Sunday
High: 47 °F
Mostly Sunny
Sunday Night
Low: 39 °F
Mostly Clear
Monday
High: 49 °F
Sunny

Detailed Forecast

Tonight

Showers and possibly a thunderstorm before 5am, then a chance of showers. Some of the storms could be severe. Low around 49. South southeast wind 18 to 21 mph, with gusts as high as 37 mph. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

Friday

A 50 percent chance of showers, mainly before 4pm. Mostly cloudy, with a high near 55. South southeast wind 11 to 18 mph, with gusts as high as 31 mph. New precipitation amounts of less than a tenth of an inch possible.

Friday Night

A slight chance of showers and thunderstorms, then a chance of showers after 10pm. Mostly cloudy, with a low around 46. South wind around 9 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

Saturday

Partly sunny, with a high near 50. North wind around 8 mph.

Saturday Night

Partly cloudy, with a low around 41. Northwest wind 7 to 9 mph, with gusts as high as 18 mph.

Sunday

Mostly sunny, with a high near 47.

Sunday Night

Mostly clear, with a low around 39.

Monday

Sunny, with a high near 49.

Monday Night

Mostly clear, with a low around 38.