What is a Tornado?A tornado is a funnel-shaped cloud made up of rapidly rotating air that extends from a thunderstorm down to the ground. How It FormsTornadoes usually form when warm, moist air meets cold, dry air. This clash creates strong winds and updrafts inside powerful thunderstorms, causing the air to spin. If the rotation strengthens and stretches downward, a visible funnel appears. Why It’s ImportantTornadoes can cause heavy damage because their strong winds can uproot trees, destroy buildings, and move cars. Meteorologists study them to warn people early and help keep communities safe.