A thunderstorm, also known as an electrical storm, a lightning storm, or a storm's a form of weather characterized by the presence of lightning and its effect: thunder. It's usually accompanied by heavy rain and sometimes snow, hail, or no precipitation at all. Thunderstorms may line up in a series, and strong or severe thunderstorms may rotate. Life cycle Airflow diagrams showing three stages of a thunderstorm life cycle.Warm air has a lower density than cool air, so warm air rises withi… (More on Thunderstorm)