Tornadoes are normal occurrences. More than a hundred tornadoes visit the various counties of the United States on a yearly basis. In addition to that, tornadoes often pay a frequent visit to the Great and High Plains regions of the country. As such, if you are planning to have a camping trip out in the mountains in early or late spring, you ought to be prepared to handle tornadoes that might come your way especially because of the fact that almost seventy percent of all the camping sites in the country are quite vulnerable to tornadoes.