Tens of millions of people were expected to head out for the holiday weekend, mostly on the roads. But storms slamming parts of the South could make return travel treacherous.

A stormy Memorial Day is expected, with scattered strong to severe storms possible late Sunday evening through Monday evening. Hail and damaging winds will be the main hazards, and heavy rain may lead to isolated instances of flooding. Stay weather aware this weekend! pic.twitter.com/954YZ9Eabt