There are six different types of tornadoes. The most commonly recognized type is the supercell tornado, the type that causes massive destruction. A gustnado is the opposite; it is very weak. It causes leaves and other debris to swirl around on the ground during a storm.
A dust devil is similar to a gustnado, simply spreading sand and dust in desert regions. A waterspout is a tornado formed over a body of water. A landspout is similar to a waterspout, but it is much weaker than a supercell. Firewhirls are formed from the smoke of forest fires or volcanoes, and they can have wind speeds of up to 100 miles per hour.