We chased storms from Greensburg, KS to east of Pratt. Near Collison, we took shelter from 2" hail and filmed it from the safety of the shelter. When it had died down a bit, we continued east. Just before we made it to Pratt, we saw a tornado just to our southwest. The multi-vortex tornado continued just south of the road on the east side of Pratt. When we got ahead of the storm, it had the stacked pancake apperance.