What is the record girth achieved by a tornado?

zbeckabee

I'm not finding a comprehensive listing of tornadoes by girth, however: The widest tornado (defined as damage path, not condensation/debris cloud or radar measurements) on record is the Wilber - Hallam, Nebraska tornado during the outbreak of May 22, 2004, with a width of 2.5 miles (4 km) at its peak. The widest tornado as measured by actual radar wind measurements was the Mulhall (1999) tornado in northern Oklahoma which occurred during the 1999 Oklahoma tornado outbreak. The distance between the maximum winds on each side of the tornado (over 110 m/s) was over 1600 m as measured by a DOW radar. Although the tornado passed largely over rural terrain, the width of the wind swath capable of producing damage was as wide as 4 miles (7 km), making the actual wind field of the Mulhall tornado likely twice as wide as that of the Hallam tornado (the wind field of which was not measured), even though the Hallam tornado resulted in a wider damage path. http://en.wikipedia.org/wiki/Tornado_records#Widest_damage_width Feb 25 09, 10:57 AM