How thunderstorms are caused

Storms are severe atmospheric disturbances accompanied by very strong, high-speed winds. Thunderstorms are whether conditions characterised by thunder, lightning and heavy rain. They occur due to the convection of air in hot and humid tropical areas. As the air near the earth's surface warms up, it rises. This results in strong upward rising winds which carry moisture with them. The moisture condenses into water droplets in the cooler, upper regions of the atmosphere. The water droplets fall down as rain or freeze and fall as hail. The rising air and the rapidly falling water droplets and ice crystals collide with each other and produce static electric charges. As a result the clouds get charged. When electric discharge occurs between the clouds or between a cloud and the ground, lightning occurs. The lightning heats up the air in its path very quickly and this results in a loud sound which we hear as thunder.