A powerful atmospheric river storm has unleashed heavy rain across Southern California, particularly impacting Los Angeles, where rainfall totals have reached over four inches within a single day. The severe weather has prompted mandatory evacuation orders in burn scar areas due to the threat of flash flooding and mudslides. Residents are facing a rare tornado threat as the storm continues to batters the region, causing significant disruptions. Despite the worst of the storm being over, officials warn that mudslide risks still remain. Authorities are urging residents to take precautions and remain vigilant as additional thunderstorms may develop later this week.