Atmospheric River Southern California 2024 Calendar. Between december 26, 2022, and january 17, 2023, california experienced a family of nine events with near continuous atmospheric river conditions for 23 days, which is. The storm, the nws said, may.

An impactful atmospheric river event will likely move southward along the west coast, the nws stated in a social media post on tuesday. Southern california braced as an atmospheric river that’s brought heavy rainfall and flooding to the west continued moving down the coast amid the thanksgiving holiday travel.