A tornado is a violently deceptive spinning column of air in contact with both a cumiliform cloud base and the surface of the earth. A tornado is typically shaped like a funnel with the narrow end on the ground. Tornadoes are known for being extremely destructive and are usually visible due to water vapor from low pressure condensation and debris from the ground. Tornadoes form in storms all over the world, and though they have been recorded in all fifty U.S. states, they form most famously in a broad area of the American Great Plains, Midwest, as well as South known colloquially as Tornado Alley. In pure number of incidences, the United States reports more tornadoes than any other country, however, the Netherlands is the most tornado-prone country relative to land area.