Аn an atmospheric vortex that occurs in a cumulonimbus (thunderstorm) cloud and spreads down, often to the surface of the earth, in the form of a cloud sleeve or trunk with a diameter of tens or hundreds of meters[3]. The development of a tornado from a cloud distinguishes it from some outwardly similar and also different in nature phenomena, for example, tornado-vortices and dusty (sand) vortices. Usually, the transverse diameter of a tornado funnel in the lower section is 300-400 m[4], although if the tornado touches the water surface, this value may be only 5-30 m, and when the funnel passes over land, it can reach 1.5—4.2 km.
Аn an atmospheric vortex that occurs in a cumulonimbus (thunderstorm) cloud and spreads down, often to the surface of the earth, in the form of a cloud sleeve or trunk with a diameter of tens or hundreds of meters[3]. The development of a tornado from a cloud distinguishes it from some outwardly similar and also different in nature phenomena, for example, tornado-vortices and dusty (sand) vortices. Usually, the transverse diameter of a tornado funnel in the lower section is 300-400 m[4], although if the tornado touches the water surface, this value may be only 5-30 m, and when the funnel passes over land, it can reach 1.5—4.2 km.
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