Torrential rains and flooding threaten millions as a new storm system hits the West Coast.

If you live in California and you’re hearing about an incoming “atmospheric river,” it’s time to take this seriously. These aren’t just heavy rainstorms — they’re massive corridors of water vapor in the sky that can dump as much water as 15 Mississippi Rivers flowing overhead.
This week’s atmospheric river is shaping up to be one of the most powerful systems to hit the West Coast in years, and it’s aimed directly at a state that’s already saturated from previous storms. Atmospheric river specialist Dr. Marty Ralph from UC San Diego has been tracking these systems for decades, and he’s warning that this storm has all the ingredients for catastrophic flooding, mudslides, and infrastructure damage.








