More than 50 million Americans from Texas to Missouri were already under National Weather Service extreme heat warnings or advisories July 20.

The weekend is ending on a stormy note across a large portion of the U.S., as more than 76 million Americans face the threat of severe weather on Sunday from the Northeast to the Midwest.

A "severe" storm is reportedly coming for 16 major U.S. states on Sunday. The National Weather Service is warning 16 states about potentially severe weather. Storms could include strong winds, large ...