Southern California officials are warning residents that dangerous flooding could wash out roadways.
Parts of Southern California and the U.S. Southwest on Monday faced the threat of flash flooding along with landslides and mudslides after storm Hilary unleashed record-breaking downpours overnight.
Some 17 million Americans were under flood and high-wind advisories, watches and warnings as remnants of the storm moved north, dumping heavy rains from the California-Mexico border up through Las Vegas and into parts of the Northwest, the National Weather Service said.
One of the hardest hit communities has been Palm Springs, California, where video footage posted on social media showed flooded streets and debris flows.
Los Angeles, the second-most populous city in the United States, experienced flooded streets and downed trees and power lines in some neighborhoods, officials said on Monday, urging residents to stay vigilant. #StormHilary #SouthernCalifornia
