How do thunderstorms form?

Thunderstorm is a violent discharge phenomenon caused by lightning in cumulonimbus clouds. Because it is usually accompanied by showers, it is often called "thunderstorm". Thunderstorm is a common form of precipitation in summer. Thunderstorms with only rainfall are usually called "general thunderstorms". Some thunderstorm weather will be accompanied by severe disastrous weather phenomena such as heavy rain, strong wind, hail and tornado. Thunderstorms accompanied by one of these severe weather phenomena are generally called "severe thunderstorms".

Cumulonimbus clouds that produce thunderstorms are called thunderstorm clouds. Thunderstorm clouds are called thunderstorm cell, and the life history of each thunderstorm cell can be roughly divided into three stages: cumulus, precipitation and dissipation.

When a thunderstorm occurs, there are usually weather phenomena such as thunder and lightning, rainfall and gust, as well as changes in meteorological factors such as air pressure, temperature and humidity.