120 miles

From the NWS Little Rock, AR

Damage reports suggest that the tornado was rated at a EF4 with a ground track of 120 miles! It is believed to be one tornado that did this as the NWS field assessment teams noted this from their observations of the continuous lines of destruction.

(graphic from NWS, Little Rock, Arkansas)

The NWS site has more detailed info here

The line of storms were extremely powerful and damaging, this image from the Little Rock, NWS shows the line of storms:

(graphic from NWS, Little Rock, Arkansas)

I watch these storms on my stormlab software, they were very scary indeed. My prayers go out to all who were affected by them.

johanthan