cyclone tornado hurricane typhoon ● meteorological phenomenon - tropical cyclone. A tornado is a rapidly rotating air vortex that descends from a storm cloud to the ground and takes on the typical shape of a funnel or trunk, the diameter of which is in the tens, exceptionally hundreds of meters. The vortex rotation speed is up to 500 km / h. There are a maximum of tens of minutes. The degree of destruction of a tornado is indicated by the Fujit scale or the TORRO scale. The suction force of a tornado can lift a person or a car into the air. ... (smoking)