Arrival day for Tour 8 brought us out to chase! The Denver Convergence Vorticity Zone (DCVZ) was active, with steep lapse rates, moderate CAPE and the wind shift to set the stage for severe thunderstorms and nonsupercell tornadoes. Two such tornadoes occurred with early convection that formed along the boundary. Cells developed and back built on the boundary tapping into the vorticity that was present. One tornado was on the ground for about 10 minutes northwest of Last Chance and the second tornado for only a couple minutes to the south of Last Chance. A fun way for tour guests to spend arrival day! We’ll chase every day we can, even if it isn’t a scheduled day. Enjoy the pics!