Well there is currently high pressure over the Great Lakes region that will supress an emerging low pressure mesoscale convective system that will try to push it's way through Southeast, while at the same time a cold front will try to spark off thunderstorms in the humid conditions from Indianapolis to about the upper panhandle of Florida. Out West, there will be a dry line that will push out from the Western Texan range that will have the chance of producing supercell thunderstorms, which subsequently have the risk of producing mesocyclones and eventually tornadoes...