What determines the height of a cumulonimbus cloud?

The height of a cumulonimbus cloud is primarily influenced by the temperature and moisture content of the surrounding air, as well as the strength of vertical wind shear. As the warm air rises and cools, it reaches a level where condensation occurs, forming the cloud. Strong updrafts can lift the cloud higher into the atmosphere, leading to towering heights of 20,000 feet or more.