Why are there many thunderstorms in summer?

In summer afternoon or evening, people often feel extremely sultry, and soon thunder rumbles and heavy rain pours; However, before long, the dark clouds cleared and the rain stopped. This is a weather phenomenon that we often encounter in summer-thunderstorm.

In summer, there is a lot of water vapor in the air. When the ground temperature rises in the sun, the air will rise upwards. After the water vapor is pushed to the sky above 1 km, large cumulus clouds are formed, which is often the precursor of cumulonimbus clouds. If the air continues to rise, cumulus clouds will continue to expand and become thick cumulus clouds. At this time, if there are appropriate conditions, the cumulonimbus cloud will continue to develop upwards, rising to a height of more than 7 kilometers, forming a cumulonimbus cloud. At this height, when the stable gas layer or cumulonimbus cloud is not strong enough to extend upward, the cloud top will expand in all directions. Before a thunderstorm comes, we often see the dark clouds in the sky thicken and spread rapidly, and they fill the whole sky in a short time.

In the thick cumulonimbus cloud, A hides a lot of water vapor, water droplets and ice crystals, some of which increase with the development of the cloud. When the updraft can't hold them, it will fall and form a shower.