Three tornadoes converge to wreak havoc on Chicago, disrupting the power grid and creating the worst super-storm in history: a category 6 twister.
11/14/2004
5/26/2004
8/17/1990
5/10/2006
10/1/1993
7/12/1991
3/28/2003
9/11/1998
7/16/2001
12/18/2013
6/6/2019
12/7/2001
7/1/1998
7/17/1997
10/17/1999
2/7/1997
1/14/1999
4/9/1999
6/8/2001
7/12/2002
10/21/1988