Over 50 million people in the southern U.S. were under heat advisories and many others were facing the threat of severe weather that spawned tornadoes and thunderstorms over the weekend and into Monday.
State of play: The severe storms saw an estimated 168,000 customers lose power in Georgia, along with some 132,000 others in both Kentucky and Tennessee and a further 126,000 in Arkansas early Monday, while a series of suspected tornadoes late Sunday damaged property in Indiana and killed a person in the state's Martin County.
