World weather photos: A very stormy spring

A flattened trailer lays along the frontage road of Interstate 20 after a tornado reportedly tore through the southeastern portion of Dallas County Tuesday, April 3, 2012 near Lancaster, Texas. The National Weather Service confirmed at least two separate "large and extremely dangerous" tornadoes in the Dallas-Fort Worth area. Several other developing twisters were reported as a band of violent storms moved north through the metropolitan area. Officials had no immediate information about injuries. (AP Photo/The Dallas Morning News, G.J. McCarthy)