When the tornado approaches, several people seek refuge under an overpass. Mostly due to footage from a 1991 Wichita tornado, many believe an overpass can provide protection, but an overpass is actually one of the worst places to seek shelter from a tornado. One reason is that the narrow passage underneath can actually intensify the speed of tornadic winds.
Lex laments that he lost 17 years of his life in prison. By coincidence, 17 years earlier, Michael Cudlitz was a guest star in the CSI:NY episode, "Super Men (2006)", in which he played an orderly at a psychiatric hospital who killed a patient who, in his delusional psychosis, fashioned himself a real-life Superman-like superhero.