Re: Has a tornado ever backtracked and hit the same area twice?

If you've ever watched footage of a tornado, you know that its path on the 
ground is somewhat erratic, in the tens to hundreds of metres range when you 
consider the associated suction vortices that accompany a strong tornado. In 
that sense, it is possible for one tornado to backtrack and hit the same 
area twice, However, such an event would occur so closely in time to the 
primary strike that I doubt it would be possible to discriminate between the 
two events. On a broader scale, the answer is "not likely". Tornadoes 
generally form in the space between the updraft zone and the downdraft zone 
of a thunderstorm, and hence move at the same rate as the storm itself - 20 
to 40 km/h minimally. It is possible for a single storm to spawn multiple 
tornadoes, but the likelihood of one tornado turning back and striking an 
area it has already passed over is remote.