Family members of an 85-year-old woman who was killed in her house during a tornado storm gather to recover family memories in the Alberta community in Tuscaloosa, Alabama, April 29, 2011. The remnants of the woman's house (L) was picked up off the foundation and landed on top of two other houses across the street. President Barack Obama promised federal aid on Friday to the tornado-ravaged U.S. South, where deadly twisters have killed at least 339 people and caused billions of dollars in damage. REUTERS/Marvin Gentry (UNITED STATES - Tags: DISASTER ENVIRONMENT IMAGES OF THE DAY)