  Our goal is to find out possible appearance of rotational motion in the
atmosphere, created by a lightning. A positive solution of this question, in
the end, leads to a necessity of accepting that processes of birth and
annihilation of electron-positron pairs take place in the leader head of
lightning channel. Under this condition, within the framework of our physical
model of development of a lightning, we suggest a logical explanation of the
stepwise structure of a negative leader, intensive radio emission produced by
lightnings, gamma-ray flashes from thunderstorm and anomalously intensive
electric currents from positive leaders. As for the development of intensive
tornado it is determined by pumping of the angular moment produced by
lightnings in a local area of the thunderstorm.
  Index Terms: 3324 Atmospheric Processes: Lightning; 3304 Atmospheric
Processes: Atmospheric electricity
