25 Deadliest Tornadoes In US History
Forecasters say there have been more than 600 reports of twisters in April 2011, and that could propel this month to becoming the most active on record. But how did April's tornadoes compare to the deadliest in United States history?
President going to Alabama
Obama received an update on the disaster from Homeland Security Secretary Janet Napolitano and other officials. Obama has already declared that an emergency exists in Alabama, the hardest-hit of Southern states ravaged by storms this week.
Southern Storms: 'I Don't Know How Anyone Survived'(video)
Daylight illuminated a scene of utter devastation across many areas of the South Thursday, following storms of near epic proportions that killed as many as 247 people in six states.