The interaction of warm and wet air from the Gulf of Mexico with the cold and dry jet stream caused an outbreak of severe thunderstorms and tornadoes in the eastern U.S.
Published Mar 6, 2012Brown tracks show the paths of tornadoes across and around Tuscaloosa, Alabama, in this image from April 28, 2011.
Published Apr 30, 2011The image shows the tops of the thunderheads with their characteristic anvil clouds.
Published Jun 24, 2003An EF4 tornado tore through this small town, leaving a trail of damaged buildings and trees.
Published May 9, 2014Acquired May 4, 2011, this false-color image shows a tornado track near Birmingham, Alabama.
Published May 5, 2011Three tornado tracks reveal the path of storms across Alabama and Georgia in this image from April 28, 2011.
Published Apr 29, 2011Acquired June 5, 2011, this natural-color image shows part of the track of an EF3 tornado that tore through Massachusetts on June 1.
Published Jun 7, 2011This image, from April 28, 2011, shows the paths of two extremely strong tornadoes across Mississippi and Alabama.
Published Apr 29, 2011