Atmospheric river storms are getting stronger, and deadlier. The race to understand them is on

As the climate crisis supercharges storms over the Pacific, scientists are creating tools that can measure them from the inside

The storm raged over California for more than five days. As the powerful atmospheric river made landfall, furious winds and torrential downpours ripped trees from their roots, turned streets into rivers and sent mud cascading into homes.

Along with chaos, the storm brought opportunity. Scientists were ready, on land and in-flight, to deploy instruments that measure atmospheric rivers like this one. They released tools from planes, equipped with small parachutes, or floated them up from the ground attached to balloons, directly into the storm's path.