These particularly powerful, towering thunderstorms are called supercells

These are especially powerful, towering thunderstorms called supercells.Reaching up to over 50,000 feet,they bring high force winds,giant hailstones, sometimes flooding and great flashes of lightning, too.These are the kinds of storms that breed tornadoes,but only if there are also very specific conditions in place,clues that we can measure and look out for when we're trying to forecast a storm. Rising air is the first ingredient needed for a tornado to develop.