What does a tornado look like?

Tornado is a vertical hollow rotating airflow between the bottom of the vertical cloud system and the underlying surface, and it is a disastrous weather phenomenon at local scale. Tornadoes can be found in tropical and temperate regions, including the interior of the United States, western Australia and northeastern India. Tornadoes are seasonally weak, and can occur in spring, summer and autumn.

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Tornado conditions include near-surface wind shear, vertical motion and energy instability. Thunderstorm is an ideal environment that can meet the above conditions, and it is also the main cause of tornado.

Among them, the tornado caused by supercell is called supercell tornado, and other cases are called non-supercell tornado. Supercell tornadoes account for 80% of the total number of tornadoes, and their intensity and development scale are usually larger than those of non-supercell tornadoes.

Tornado is a meteorological disaster. Modern weather forecast can warn tornadoes through high-frequency observation, but it requires high forecasting experience. In addition, some areas also carry out manual observation and data collection on tornadoes, that is, the "storm discovery" project.