The children love to talk about the weather, and since our springtime is so stormy, I decided to talk about storms today, especially tornadoes. After our discussion, the students investigated the vortex within a tornado tube.
Tornadoes form from thunderstorms, though every thunderstorms does not generate a tornado. An unstable column of warm air rising within cumulus clouds can start to rotate because of changing wind directions at or near the ground. These updrafts create conditions where a funnel might develop. If conditions are right and a funnel forms, it can extend to the ground, forming a tornado.