California Braces for Massive Rainstorm, Millions Under Flood Alerts

Over 20 million people in Southern California, including Los Angeles, are under flood alerts as an atmospheric river threatens to bring heavy rain, flooding, and mudslides. A stronger storm is expected to bring several hours of steady rain and gusty winds on Wednesday and Friday, with the potential for thunderstorms and waterspouts. Widespread rainfall of 2 to 4 inches is expected along the coast, with the possibility of more than a month's worth of rain in just a few days in Los Angeles. The storm will also bring significant snow to the Sierra Nevada. The system will then move eastward into Arizona, Utah, and Nevada, causing hazardous travel conditions for the holiday weekend.