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

Vacaville Nut Tree Airport (KVCB)

Lat: 38.37755°NLon: 121.95853°WElev: 105.0ft.

Rain

58°F

14°C

Humidity	90%
Wind Speed	S 14 MPH
Barometer	29.6 in (1002.37 mb)
Dewpoint	55°F (13°C)
Visibility	10.00 mi
Last update	24 Dec 06:53 PM PST

More Information:

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

Extended Forecast for

5 Miles ENE Napa CA

Flood Watch December 24, 07:00pm until December 26, 04:00pm

High Wind Warning December 24, 07:00pm until December 25, 04:00pm

Click here for hazard details and duration

Flood Watch

High Wind Warning

Flood Watch December 24, 07:00pm until December 26, 04:00pm
High Wind Warning December 24, 07:00pm until December 25, 04:00pm
NOW: Multiple hazards in effect
Click HERE for Details
Tonight
Low: 48 °F
Showers and
Breezy
Christmas Day
High: 51 °F⇓
Showers and
Breezy
Thursday Night
Low: 46 °F
Rain
Friday
High: 48 °F
Rain
Friday Night
Low: 41 °F
Chance Rain
Saturday
High: 47 °F
Slight Chance
Rain then
Mostly Sunny
Saturday Night
Low: 37 °F
Mostly Clear
Sunday
High: 47 °F
Sunny

Detailed Forecast

Tonight

Showers and thunderstorms before 1am, then showers and possibly a thunderstorm, mainly after 1am. Low around 48. Breezy, with a south southeast wind 16 to 24 mph, with gusts as high as 43 mph. Chance of precipitation is 100%. New rainfall amounts between a half and three quarters of an inch possible.

Christmas Day

Rain and possibly a thunderstorm before 1pm, then showers and possibly a thunderstorm, mainly after 1pm. Temperature falling to around 46 by 5pm. Breezy, with a south wind around 22 mph, with gusts as high as 39 mph. Chance of precipitation is 90%. New rainfall amounts between a half and three quarters of an inch possible.

Thursday Night

Rain. Low around 46. South southwest wind around 18 mph, with gusts as high as 34 mph. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.

Friday

Rain. High near 48. South wind around 16 mph, with gusts as high as 29 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.

Friday Night

A 50 percent chance of rain, mainly before 4am. Mostly cloudy, with a low around 41. East southeast wind around 5 mph.

Saturday

A 20 percent chance of rain before 10am. Mostly sunny, with a high near 47.

Saturday Night

Mostly clear, with a low around 37.

Sunday

Sunny, with a high near 47.

Sunday Night

Mostly clear, with a low around 35.

Monday

Sunny, with a high near 48.