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Tornadoes
Described as a swirling tunnel of air by Professor Derek M. Elsom of Oxford Brooks University, tornadoes can be menacing. Their wind speeds can reach 450 km an hour and are formed by storm clouds.
Picture: Tornado, Credit: Getty Images
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Extreme Weather—麻豆官网首页入口 World Service Archive
The science of lightning, floods and storms - the impact of extreme weather on our planet
