SoCal Edison is investigating whether an underground transformer exploded in Ventura during Saturday's storms, causing a power outage in the area.

The girl's father attempted to save her as she was pulled by large waves near Garrapata State Park on Friday, according to authorities. He was rescued and later died.

The heaviest rain came on Saturday, according to the National Weather Service, which prompted several flash flood warnings. Adam Roser, a meteorologist with the weather service, told SFGATE that Saturday's rain broke numerous records set during a Nov. 15, 1965, storm system.

The weekend's storm in Southern California was among the wettest in November in California's recorded history, according to CBS LA Chief Meteorologist Paul Deanno, and the recent rain totals support that assertion.

After hitting the San Francisco Bay Area on Wednesday, the storm system is expected to arrive in Southern California on Thursday.

Unrelenting rain is expected to persist in the Bay Area as two back-to-back storm systems close in on the region this week, accompanied by up to 60 mph wind gusts, possible thunderstorms, landslides and flooding.

Wind advisories are in place for parts of Southern California, including the northern mountains into Ventura County and the Antelope Valley foothills

A storm is dropping rounds of heavy rain on more than 22 million people across Southern California on Saturday.