A deadly patchwork of destructive cyclones is on an apocalyptic path of convergence at a populated Midwest city center. There, the twisters will merge into one mega tornado that threatens to obliterate the cities for hundreds of miles around.
2017
1978
2000
1970
1974
2001
1925
1984
1993
1999
1977
1998
2008
1976
2007
2004
1939
1996
