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Aerial photos show path of tornado through Tuscaloosa, Alabama

Dusty Compton / AP

This aerial photo shows the path of the tornado in Tuscaloosa, Ala. on Thursday, April 28, 2011. A powerful and deadly tornado cut through Alabama Wednesday evening. President Barack Obama said he would visit Alabama Friday to view damage and meet with the governor and families devastated by the storms. Obama has already expressed condolences by phone to Gov. Robert Bentley and approved his request for emergency federal assistance.

Marvin Gentry / Reuters

An aerial view shows extensive damage to houses in the path of tornadoes in Tuscaloosa, Alabama, April 28, 2011.

Marvin Gentry / Reuters

An aerial view shows extensive damage to homes and businesses in the path of tornadoes in Tuscaloosa, Alabama, April 28, 2011. Tornadoes and violent storms ripped through seven southern U.S. states, killing at least 259 people in the country's deadliest series of twisters in nearly four decades.