Why would a cooling of the Pacific Ocean help stoke tornadoes in the United States? Researchers are beginning to dig deeper into the connections between severe U.S. thunderstorms and the sea.

The winter of 2011–12 was the second in a row to feature La Niña, the quasi-cyclic cooling of the eastern tropical Pacific—but the two seasons departed from the La Niña script in strikingly different ways.

Scientists are working to solve a critical wintertime weather mystery: how to accurately measure the amount of snow on the ground.

There’s much more to wind energy than throwing a few turbines up and watching the blades spin and the cash roll in. NCAR and partners are adding rigor and efficiency to wind power prediction and resource assessment.

Experts from a variety of disciplines are joining forces to improve how severe-weather warnings are crafted and communicated. The "Weather-Ready Nation" initiative comes on the heels of a year packed with U.S. weather disasters.