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Tornado Alley

An interactive map exploring the region where warm and cold air masses collide to create America's most tornado-prone area.

Run Full Screen MicroSim

About This MicroSim

Understand how geography creates tornado conditions:

  • Warm Gulf Air - Moist air from the Gulf of Mexico
  • Cold Canadian Air - Dry air from Canada
  • Collision Zone - Where air masses meet and tornadoes form

Features

  • Animate air mass movements
  • Click states to learn about tornado activity
  • Quiz mode to test your knowledge