What are tornadoes and what can they do?

A tornado is a violently rotating column of air extending from the base of a thunderstorm to the ground, often made visible by a condensation funnel. The powerful winds and flying debris in a tornado are capable of cause severe damage to trees and property. Damage can range from broken tree limbs and missing shingles to the complete destruction of entire neighborhoods. The most powerful tornadoes can completel blow away even the sturdiest houses and strip asphalt from roads.