It's interesting to note that a tornado on April 20, 1920, affected many of the same locations in Alabama as the 4/27/11 Hackleburg tornado. The 1920 tornado began in Oktibbeha County, MS, and likely dissipated in Limestone County. There is some evidence it continued into Tennessee. However, it devastated Hackleburg, Phil Campbell, and numerous other small towns in Marion, Franklin, Colbert, and Lawrence counties. This tornado was rated an F-4, had a path length of at least 130 miles, and killed 88. It could have been a tornado family, but we will never know for certain.For me Jarrell and Hackleburg would be close in the 97 or 98 range. IMO Hackleburg is the closest re-incarnation of the tri-state tornado we have seen to date. While the Hackleburg tornado may not have produced damage as violent as Jarrell the shear volume of EF5 damage it did was absurd. It was at EF5 level for much of its very long path.