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:
Within days , a series of tornadoes and severe hail swept through fourteens homes and the District of Columbia causing death , injury and destruction . At least 27 people have died , more than 500 are injured and many have been left homeless . The most serious damage occurred in Huntsville , Alabama where 17 people were killed , 300 injured and about 1,000 left homeless . In Newburgh , New York , about 60 miles north of New York City , a tree crashed through the roof of an elementary school killing seven children and injuring dozens . Thousands of retail customers are without power and property damage is in the process .