Dueling tornados
Two tornados revolving *around* each other.
Tornado Records (pdf)
Highest Recorded Wind: 318 mph, Bridge Creek/Moore, OK, May 3, 1999.
Widest Observed Path: 2.5 miles, Hallam, NE, May 22nd, 2004.
Longest Observed Path: 219 miles, Tri State Tornado, March 18, 1925.