NWS Peasron Tornado Archive

Tornado Archive contains a chronological listing, by state, of tornadoes. The reports are provided by the National Weather Service and contain statistics on injuries and damage estimates. The Tornado Archive has been compiled from the Climatic Data National Summary (CDNS) from 1950-1959 and from the Storm Data Publication since 1959. These data have been coded according to the Pearson Tornado Tape 82-column text format. Major parameters are U.S. state, date, time, type of tornado, accompanying weather conditions, number of US states passed through, number of tornado segments, beginning latitude and longitude, ending latitude and longitude, track length, percent of tornado segment path on ground, direction of tornado movement, tornado visual characteristics, direction of rotation, path width, number of fatalities, number of injuries, estimated damage cost code, US counties involved, Fujita scale code, estimated path length code (excludes sections without surface disturbances), estimated path width code, and source of tornado report.