Thunderstorm is an atmospheric phenomenon in which there are electric discharges inside the clouds or between a cloud and the earth's surface - lightning accompanied by thunder. As a rule, a thunderstorm is formed in powerful cumulonimbus clouds and is associated with rain shower, hail and heavy winds.
The tornado is a strong small-scale vortex under storm clouds with an approximately vertical but often curved axis. From the periphery to the center of the tornado, a pressure drop of 100-200 hPa is observed. The wind speed in tornadoes can exceed 100 m / s, theoretically it can reach the speed of sound
