The deadly tornado that hit Joplin, MO in 2011 was unusually strong for many reasons. This visualization of a supercomputer simulation of that event shows two large storm clouds crashing into each other. When storms collide, turbulent winds can cause tornadoes to form.

Funded in part by: National Science Foundation Award: ACI-1445176 
The Centrality of Advance Dgitally Enabled Science: CADENS