The strongest wave of a powerful winter storm reached Southern California overnight, bringing flash flood warnings, dropping snow levels and a possible tornado.

California is once again reeling from the aftermath of a fast-moving storm that forced evacuation, rescues and even a rare tornado. NBC News’ Steve Patterson reports on the storm system that is now moving east.

Residents along Glencannon Drive were expecting rain. But instead they got a tornado that downed trees and damaged several homes.

An EF0 tornado touched down in Los Angeles County early Thursday morning, causing damage to a Pico Rivera neighborhood, the National Weather Service said.

The tornado, creating gusts of up 85 mph, left a trail 80 yards wide and a mile long, damaging homes, plowing over trees, taking down power lines and rupturing water pipes, authorities said. It hit a mile west of the 605 Freeway.

A major storm continued to wallop much of Southern California on Thursday morning, bringing evacuation warnings, fears of mudslides and heavy mountain snow.

A tornado hit Southern California this morning amid an atmospheric river that is bringing rain, flooding and mudslides to the state. No one was injured by the tornado that hit Los Angeles County, but winds toppled trees and littered debris around Pico Rivera.