Your use of "YOU" is weird when I haven't even really decided what I think should be called tornado alley. I just wanted to point out that whatever method you're using is not "single definition: where tornadoes happen"; it's something more subjective.
Also to be clear I was using "Raleigh" as shorthand for "that orange cell right next to Raleigh", which is the same 11-15 color as St. Louis.
Also to be clear I was using "Raleigh" as shorthand for "that orange cell right next to Raleigh", which is the same 11-15 color as St. Louis.