This giant spark of electricity surges through clouds and sometimes touches down on Earth’s surface. Thunderstorms develop when the atmosphere is unstable. Thunderstorms form when warm, moist air rises into cold air. Thunderstorm - Thunderstorm - Supercell storms: When environmental winds are favourable, the updraft and downdraft of a storm become organized and twist around and reinforce each other. Consequently, thunderstorms are usually followed by dense rain and cloudbursts.” The researchers conclude that the risk of major thunderstorms and cloudbursts is influenced by differences between the Earth’s surface temperature at night and during the day. What causes thunder and lightning? Also known as electrical storms, lightning storms, or thundershowers, thunderstorms are caused by an updraft that occurs when warm, moist air rises up into the atmosphere. The heated air expands explosively, creating a shockwave as the surrounding air is rapidly compressed. That's five times hotter than the surface of the Sun! In a fraction of a second, lightning heats the air around it to incredible temperatures—as hot as 54,000 °F (30,000 °C). ~ The velocity and volume of warm air within the cloud increases, initiating a warm updraft. Causes and Effects of Thunderstorms: A thunderstorm caused when warm and moist air rises and swift updraft to colder regions of the atmosphere affecting the zone with its irresistible destruction, is an intense, short-lived weather disturbance. What causes thunder? What is a Thunderstorm? Causes of Thunderstorms ~ Thunderstorms occur when warm, moist air within a rain cloud, rises in large volumes and with increasing velocity. What causes thunder: Thunder is the sound lightning makes, this is because lightning suddenly increases the pressure and temperature around it, expanding the air and making a … Even though thunderstorms are common, they are still dramatic events with intense rain, hail, wind, lightning, thunder, and even tornadoes. This makes the storm cloud more buoyant and it rises upwards. These storms are the most intense type of thunderstorm. When the temperature difference is large, the risk of severe thunderstorms increases. What causes lightning: When a positive and negative charge grows large enough in the sky you get lightning. This is when warm air exists underneath much colder air. A thunderstorm is basically a storm characterized by lightning and thunder. The warm air becomes cooler, which causes moisture, called water vapor, to form small water droplets - a process called condensation. Until now such … The air then contracts rapidly as it cools. 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