Two supercells colliding is a crazy cool sight. The storm on the left was new, it was circulating hard and starting to show signs of tornadic activity. When it hits the storm on the right from behind, represented by mammatus clouds it loses momentum, untold it devours all of the others storms energy and gets even bigger. Captured outside Shamrock, Texas last Spring. Not too long from now I will chasing storms up and down the Great Plains! Hope you enjoy! If so, share with an friend!