New studies show that outlying wind may have been the main source for destruction in the May 22, 2011 tornado that struck the Joplin area.
A new study released by the American Society of Civil Engineers says that a majority of the destruction caused by the Joplin tornado was due to winds reaching 135 miles an hour outlying the actual tornado itself.
A majority of homes in that path of destruction were also older and not built to withstand strong winds.
Since the summer of 2011 city requirements say new homes must be built with hurricane straps.
"Those in the direct path are very hard hit, but it certaintly would have helped in our perimeter areas and that's what we were looking for," says Joplin's City Supervisor for Building Codes and Inspections Steve Cope.