Above: The F5 tornado that tore through Moore and Oklahoma City, Oklahoma, on May 3, 1999. This photo was taken near Bridge Creek, about 15 miles southwest of Moore. (Courtesy Erin Maxwell via NWS ...

Sue Larson stands dismayed among the rubble that was her home in Albion, Pennsylvania, on June 2, 1985. A tornado struck the small northwest Pennsylvania community on May 31, killing nine people ...

Through this, tornado severity is ranked from F1 to F5 (the "F" stands for Fujita), with F5 being the worst on the scale. An F5 is the most powerful level for a tornado.

Spatial analysis of tornado touchdown locations reveals several spatial relationships with regard to cities, population density, land use classification, and topography. A total of 61% of percent of ...

The clouds also reminded many about Kentucky’s worst tornado in recorded history – an F5 with winds reaching 225 mph that ripped across Meade County on April 3, 1974, destroying downtown ...

By Brian Kahn Follow @blkahn Thursday marked the 40th anniversary of one of the most destructive tornado outbreaks in U.S. history. The event, deemed a Super Outbreak, took place over two days and ...