More than 40 million Americans are in the threat zone through Saturday night, stretching from Texas to the Carolinas.

Over 10,000 residents in West Texas are without power Thursday night after tornadoes and a severe storm system. Here's what we know.

A powerful supercell swept across Texas on Thursday, leaving a trail of destruction from the New Mexico state line to Lubbock. This single storm spawned 19 tornadoes, causing significant damage that ranged from mobile homes being overturned to roofs being ripped off buildings.