How Tornadoes Are Formed

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  • Alarge thunderstorm takes place in a cumulonimbus cloud
  • A shift in wind direction and wind speed at high altitudes causes the air to spiral horizontally.
  • Ascending air from the ground pushes up on the spiralling air and tips it over.
  • The funnel of spiralling air begins to suck up more heated air from the ground
  • The funnel grows longer and expands toward the ground.
  • When the funnel reaches the ground it becomes a tornado
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