Tornado Alley

The broad swath of the US Great Plains most prone to tornadoes/Nature & Natural Wonders

Tornado Alley is an informal term for the region of the central United States with the highest frequency of tornadoes, stretching roughly from central Texas through Oklahoma, Kansas, Nebraska, and into South Dakota. The area covers approximately 1.3 million square kilometers. The US experiences about 1,200 tornadoes per year on average, more than any other country, with Tornado Alley accounting for a disproportionate share. The convergence of warm, moist Gulf air with cold, dry Canadian air and dry air from the Rockies creates ideal conditions for severe thunderstorms and tornadic supercells.