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The United States experiences approximately 75% of the world's tornadoes — about 1,200 annually. 'Tornado Alley' (Kansas, Oklahoma, Texas, Nebraska, South Dakota) and 'Dixie Alley' (Mississippi, Alabama, Tennessee) are particularly affected, where warm, moist Gulf of Mexico air meets cold, dry air from Canada over the flat Great Plains. The collision produces severe thunderstorms and supercell tornadoes.
The most powerful tornadoes (EF5 scale) produce winds exceeding 320 km/h — capable of stripping bark from trees, picking up semi-trucks, and demolishing reinforced concrete. The 2011 Joplin, Missouri tornado killed 158 people and caused $2.8 billion in damage. Oklahoma City has been hit by tornadoes 100+ times — more than any other US city.
# Top 10 Tornado Alley facts
- 1The US experiences 1,200 tornadoes annually — 75% of the world's total
- 2The 2011 Joplin tornado had winds exceeding 320 km/h and was over 1 km wide at its widest point
- 3Oklahoma City has been hit by tornadoes over 100 times — the world's most tornado-struck major city
Fascinating Facts
- ◆The US experiences 1,200 tornadoes annually — 75% of the world's total
- ◆The 2011 Joplin tornado had winds exceeding 320 km/h and was over 1 km wide at its widest point
- ◆Oklahoma City has been hit by tornadoes over 100 times — the world's most tornado-struck major city
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