Cloud height

Convective cloud's thickness, between its base and top, shown on the background scale at different stages of its life

The cloud height, more commonly known as cloud thickness or depth, is the distance between the cloud base and the cloud top. It is traditionally expressed either in metres or as a pressure difference in hectopascal (hPa, equivalent to millibar). Sometimes, the expression cloud height is used instead of cloud base, in which case the context has to clarify whether the intent is to designate the height of the base of the cloud or the size of it.