"tornado chasers" was filmed each year during storm season in tornado alley, using timmer's norman, oklahoma home as a base. contrary to previous series about storm chasing, "tornado chasers" takes a more personal approach, conveying the chronological, authentic storm chasing experience. during the 2012 season, timmer's team mainly consisted of dick mcgowan, chris chittick, and terry rosema. for the 2013 season, timmer reconnected with joel taylor, joined the kfor-tv newschannel 4 oklahoma city severe weather team, and welcomed broadcast meteorologists jim cantore and ginger zee as guest chase partners. he also introduced the new dominator 3, the largest of his armored intercept vehicles.