The weather service issued flood warnings as the storm headed west through Los Angeles and the San Gabriel Valley.
An early spring storm pounded Southern California Sunday, flooding roadways and dumping snow on mountain areas as low as 4,500 feet.
The brunt of the slow-moving system was felt in coastal areas like Malibu, where nearly two inches of rain has fallen since mid-morning, according to National Weather Service meteorologist Curt Kaplan. More than an inch was reported in Oxnard and Ventura.
The weather service issued flood warnings as the storm headed west through Los Angeles and the San Gabriel Valley. Traffic was snarled on the 110 and 10 freeways in LA because of standing water and mud in lanes.
Snow and strong winds were reported along Interstate 5 at the Grapevine but the CHP said all lanes were open.
The Auto Club 400 NASCAR race at Fontana was terminated after 258 miles because of the wet track.
Temperatures topped out at around 60 degrees.