captions by vitac www.vitac.com tonight we re tracking a danger ouz tornado outbreak. powerful twisters across ohio, tennessee, mississippi, alabama and indiana where four deaths have now been confirmed. in kentucky a yellow school bus slammed into a building. its front half obliterated. in tennessee, homes are ripped from their foundation, splintered by the winds. at least six people critically hurt in that state. in alabama a trailer home lifted up and crashed upside down near a tree. the naked lot and a few stairs all that s left. and here s a power line crumpled like a paper clip. millions are affected and this is far far from over. we re keeping an eye on it all with the help of our cnn meteorologist chad myers in the severe weather center. chad, what are you watching right now? john, i m watching 11 literally 11 states with a tornado watch in effect. i m watching 21 tornado warnings. watch a short word, not quite as important, warning the bigger word. more let