Tornadoes start with thunderstorms, but not all thunderstorms

Because of this, there's a great deal of research into these phenomena,but the truth is, there's still a lot we don't know about how tornadoes form.The conditions that may give rise to one tornado won't necessarily cause another.But we have learned a lot since people first started recording tornadoes,like how to recognize the signs when one is brewing in the sky.Are you coming along for the ride?Tornadoes begin with a thunderstorm but not just any thunderstorm.