Although dust devils can provide clues to tornado winds, U of Illinois wind engineer Frank Lombardo says tornadic behavior is still largely a mystery \u2013 and a bigger risk than researchers previously thought. He details ways wind engineers are piecing together answers, including simulations and damage surveys.\n\n\nAlthough dust devils can provide clues to tornado winds, U of Illinois wind engineer Frank Lombardo says tornadic behavior is still largely a mystery \u2013 and a bigger risk than researchers previously thought. He details ways wind engineers are piecing together answers, including simulations and damage surveys.