Simpson stated that "... when you get up into winds in excess of 155 mph (249 km/h) you have enough damage if that extreme wind sustains itself for as much as six seconds on a building it’s going to cause rupturing damages that are serious no matter how well it's engineered."
Simpson a afirmat că „... când se ajunge la vânturi de peste 249 km/h apar suficiente daune dacă acel vânt extrem se menține mai mult șase secunde asupra unei clădiri, va provoca daune prin pelsnire rupte care sunt grave indiferent de cât de bine este proiectat”.