Members of the 319th Medical Group apply a splint to a victim’s leg during a tornado exercise, June 21, 2013, on Grand Forks Air Force Base, N.D. 319th Air Base Wing conducted a tornado exercise for the upcoming severe and tornado season. The 319th Air Base Wing conducted a tornado exercise for the upcoming storm and tornado season. The 319th Medical Group simulated evacuating to an alternate site to provide medical and mental care to mass casualties.