Japanese meteorologists say that such atmospheric phenomena (on pictures below) can serve as a base material for large tornadoes. Residents are lucky that the cloud has not transformed into something more bigly.
Earlier in 2012, a similar atmospheric phenomenon was caught in the video, in the center of Japan, which lasted longer and clearly preceded the thunderstorm. Meteorologists explained that such accumulations of vapor from the condensed liquid formed in a whirling air flow are formed. Such a rare event could serve as the origin of a tornado if it were lowered by the lower end of the “tail” to the surface of the Earth.
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