Severe storms that spawned tornadoes damaged homes and downed trees as they moved across the Southeast on Monday night.
Forecasters warned that the storms could threaten more than 29 million people, raising the risk of powerful tornadoes, damaging winds and hail the size of tennis balls.
Cities in northern Alabama reported power outages, and the National Weather Service in Huntsville reported at least three confirmed tornadoes in the area.
In Limestone County, an Alabama county on the Tennessee border, the sheriff's office posted photos online of houses with roofs ripped off and outbuildings torn from their foundations. Several roads were closed because of power...