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

Jolon Hills (PG727)

Lat: 35.88446°NLon: 120.95584°WElev: 1495.0ft.

52°F

11°C

Humidity	95%
Wind Speed	SSW 9 MPH
Barometer	NA
Dewpoint	51°F (11°C)
Visibility	NA
Last update	25 Dec 10:20 AM PST

More Information:

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

Extended Forecast for

6 Miles N Lake San Antonio CA

Flood Watch December 25, 10:35am until December 26, 10:00pm

Click here for hazard details and duration

Flood Watch

Flood Watch December 25, 10:35am until December 26, 10:00pm
NOW until 10:00pm Fri
Flood Watch
Christmas Day
High: 51 °F
Rain then
Severe
Thunderstorms
and Breezy
Tonight
Low: 46 °F
Breezy.
Severe
Thunderstorms
then Rain
Friday
High: 49 °F
Rain
Friday Night
Low: 44 °F
Chance Rain
Saturday
High: 49 °F
Slight Chance
Rain
Saturday Night
Low: 40 °F
Mostly Clear
Sunday
High: 51 °F
Sunny
Sunday Night
Low: 40 °F
Mostly Clear

Detailed Forecast

Christmas Day

Rain before 1pm, then showers and possibly a thunderstorm between 1pm and 4pm, then rain after 4pm. Some of the storms could be severe. High near 51. Breezy, with a south wind 18 to 24 mph, with gusts as high as 38 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

Tonight

Rain before 7pm, then showers and possibly a thunderstorm between 7pm and 10pm, then rain after 10pm. Some of the storms could be severe. Low around 46. Breezy, with a south wind 23 to 28 mph decreasing to 17 to 22 mph after midnight. Winds could gust as high as 49 mph. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.

Friday

Rain, mainly before 4pm. High near 49. South southwest 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 40 percent chance of rain, mainly before 10pm. Mostly cloudy, with a low around 44. South wind around 6 mph becoming west northwest after midnight. New precipitation amounts of less than a tenth of an inch possible.

Saturday

A 20 percent chance of rain. Mostly sunny, with a high near 49. North northwest wind 7 to 9 mph.

Saturday Night

Mostly clear, with a low around 40.

Sunday

Sunny, with a high near 51.

Sunday Night

Mostly clear, with a low around 40.

Monday

Sunny, with a high near 55.

Monday Night

Mostly clear, with a low around 42.