Here is a state-by-state look at the tornadoes and severe thunderstorms that have killed at least 27 people, injured more than 500 and left hundreds homeless since Wednesday:
Tornadoes and severe thunderstorms killed at least 27 people Wednesday. The worst hit was Huntsville, Alabama, where 17 people were killed and 1000 left homeless. A Kentucky storm believed to be a tornado cut a mile-long swath of destruction through the town of Flaherty. Tornadoes were also reported in Mississippi, Georgia, North and South Carolina, Ohio, Indiana, Pennsylvania, West Virginia, Maryland, Delaware, New Jersey, and New York. Thunderstorms and high winds were also wide-spread and caused power outages and other damage. They caused deaths in Illinois and New York, where a tree falling on an elementary school roof killed 7 children.