What are Tornadoes.Tornadoes are also called twisters,they are funnel of wind moving in the air.How is tornadoes are formed, tornadoes form when warm,humid air collided with cold,dry air.The denser cold auris pushed over the warm air, usually producing thunderstorms.The warm air rises through the colder air,causing an updraft.The updraft will begin to rotate if winds vary sharply on speed or direction.Where do they happen ,tornadoes happen all over the world.Hundreds of tornadoes form each year in central united states.This area is also known as Tornado alley.What do they do , strong tornadoes destroy anything on their paths.Stong winds uproots trees.Spinning wind rips the roofs off buildings.Even cars ands truck can be blown about and smashed by tornadoes.How to stay safe during tornadoes, tornadoes warnings on tv and radios help people day safe.Listen for sirens outside.During a warning, go to the basement or a windowless room get all the supplies you need to survive like food lie down in ditch, when you are outside and there's a torano warning to the nearest shelter and lien down on the floor.