Briefly describe the characteristics of thunderstorm clouds.

Cumulonimbus clouds that produce thunderstorms are called thunderstorm clouds. Thunderstorm cloud is called thunderstorm cell, and its horizontal scale is about ten kilometers. A group of thunderstorm cell gathered in a band is called a thunderstorm group or thunderstorm area. Its process can be divided into three stages: formation, maturity and dissipation.

In the initial stage, the monomer is rising; In the mature stage, part of the cloud is rising and part is sinking; Dissipative stage, mostly sinking. Thunderstorm clouds can be isolated and dispersed to form general thunderstorms, which is a relatively weak thunderstorm weather system. It will lead to serious local weather disasters.