May 20, 2013Target: South Central Oklahoma This supercell produced a tornado near Duncan, Oklahoma, on the west side of Waurika Lake HP Supercell near Nocona, Tx Back lit departing storm with vivid rainbow near Ardmore, Oklahoma Slide 1 Slide 1 (current slide) Slide 2 Slide 2 (current slide) Slide 3 Slide 3 (current slide)