A tornado is a violently rotating column of air extending from a thunderstorm to the ground. While scientists are still researching the exact "trigger," they know that a successful requires:
: Most injuries are caused by flying debris. Use blankets, pillows, or even a bicycle helmet to protect your head and neck. Weather, Storms & Tornadoes
: As the warm air rises (an updraft), it begins to cool and condense, forming towering cumulonimbus clouds. A tornado is a violently rotating column of