Overview
- Governor Gavin Newsom issued a state of emergency for Los Angeles, Orange, Riverside, San Bernardino, San Diego and Shasta counties.
- Heavy rain from a powerful atmospheric river inundated roads and neighborhoods across the region during the Christmas period.
- Aerial footage showed streets underwater in Los Angeles and in Wrightwood in San Bernardino County.
- Parts of Los Angeles saw evacuations as floodwaters rose and saturated ground increased debris-flow risks.
- Thousands lost electricity after trees and power lines fell, and state emergency officials kept public alerts active while warning of dangerous wind gusts.