LOS ANGELES (AP) — More than 20 people escaped injury when a flood swept cabins and vehicles down a coastal canyon as the second in a trio of storms drenched California with heavy rain and brought more snow to the mountains. The dramatic scene about 115 miles northwest of Los Angeles came during a day of pounding rain in Southern California that caused flooding, rockslides and an avalanche warning. Trees were toppled, cars were stranded in surging water and five homeless people were rescued by helicopter Friday when their encampment was swamped. A sheriff's helicopter returning to an airport after the canyon incident spotted a car swamped by water.