Yes, Tornadoes Are Getting Stronger

James Elsner looked at the length and width of a storm’s damage path, correlated that to the amount of damage, and then used the result to estimate wind 1.0 speed. A little more crunching and bam!—integrated kinetic energy of a storm. Non-linear upward trend estimated values of kinetic energy Elsner’s analysis suggests that since the turn of the century, tornadoes have packed a more powerful punch.

Source: Wired