90% of the world's tornados happen in the United States. 90% of those happen in what is called "Tornado Alley"; an area ranging from west Texas to the Great Lakes and pretty much inluding the entire mid-western US. Kansas is in the heart of "Tornado Alley", so we take these things pretty seriously around here.
Anyway, we had a "small" one plow through this morning. What fun! (Not!) Our back fence is toast.