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

Livermore, Livermore Municipal Airport (KLVK)

Lat: 37.69278°NLon: 121.81444°WElev: 397.0ft.

Rain

56°F

13°C

Humidity	83%
Wind Speed	SSW 12 MPH
Barometer	29.59 in (1002.03 mb)
Dewpoint	51°F (11°C)
Visibility	10.00 mi
Last update	24 Dec 05:53 AM PST

More Information:

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

Extended Forecast for

7 Miles W Tracy CA

Flood Watch December 24, 06:00am until December 26, 10:00pm

Wind Advisory December 24, 08:00pm until December 25, 10:00am

Wind Advisory December 24, 06:00am until December 24, 08:00am

Click here for hazard details and duration

Flood Watch

Wind Advisory

...

Flood Watch December 24, 06:00am until December 26, 10:00pm
Wind Advisory December 24, 06:00am until December 24, 08:00am
NOW: Multiple hazards in effect
Click HERE for Details
Today
High: 59 °F
Showers
Likely
Tonight
Low: 53 °F
Showers and
Breezy
Christmas Day
High: 55 °F
Showers and
Breezy
Thursday Night
Low: 48 °F
Showers and
Breezy
Friday
High: 52 °F
Showers and
Breezy
Friday Night
Low: 44 °F
Showers
Likely
Saturday
High: 50 °F
Slight Chance
Showers then
Partly Sunny
Saturday Night
Low: 38 °F
Mostly Clear

Detailed Forecast

Today

Showers likely, mainly before 3pm. Mostly cloudy, with a high near 59. Light and variable wind becoming southeast 11 to 16 mph in the morning. Winds could gust as high as 24 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

Tonight

Showers, with thunderstorms also possible after 4am. Low around 53. Breezy, with an east wind 14 to 22 mph, with gusts as high as 32 mph. Chance of precipitation is 90%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

Christmas Day

Showers likely and possibly a thunderstorm, then showers after 10am. High near 55. Breezy, with a south wind 15 to 25 mph, with gusts as high as 44 mph. Chance of precipitation is 100%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

Thursday Night

Showers and possibly a thunderstorm. Low around 48. Breezy, with a south wind 25 to 29 mph, with gusts as high as 46 mph. Chance of precipitation is 100%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

Friday

Showers, with thunderstorms also possible after 4pm. High near 52. Breezy, with a south wind 14 to 22 mph, with gusts as high as 37 mph. Chance of precipitation is 80%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

Friday Night

Showers likely and possibly a thunderstorm before 10pm, then a chance of showers and thunderstorms, mainly between 10pm and 4am. Mostly cloudy, with a low around 44. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

Saturday

A 20 percent chance of showers before 10am. Partly sunny, with a high near 50.

Saturday Night

Mostly clear, with a low around 38.

Sunday

Sunny, with a high near 48.

Sunday Night

Mostly clear, with a low around 37.

Monday

Patchy fog. Otherwise, mostly sunny, with a high near 48.

Monday Night

Partly cloudy, with a low around 38.