Severe thunderstorms are possible across the Midwest and Great Lakes on Sunday and Monday. The main threats are hail and wind, but tornadoes cannot be ruled out. Minneapolis, Milwaukee, Chicago, Indianapolis, Detroit and Pittsburgh could all see damaging winds and the threat of a couple of tornadoes and large hail by the time Monday is over. The threat shifts to the mid-Atlantic on Tuesday. Philadelphia, Washington, Baltimore, Raleigh and Charlotte could all see storms. Here’s what we know about this threat.