Satellite view of the Pineapple Express atmospheric river stretching from the central Pacific toward the U.S. West Coast, carrying a plume of tropical moisture that may cause heavy rain and flooding in California.

Pineapple Express Atmospheric River Hits California: Heavy Rain, Flooding & Evacuation Warnings Explained

California is currently facing a major weather event driven by a powerful atmospheric river storm known as the “Pineapple Express,” bringing intense rain, flood risks, and evacuation warnings across Southern California — especially around Los Angeles and surrounding counties. Here’s a comprehensive breakdown of what it is, where the risks are greatest, evacuation guidance, timeline details, and how residents can stay safe