Immediately after the lightning discharge, meaning the first Return Stroke, the strongest part of the discharge, during which there is for a short time, a few millionths of seconds, only a very thin column of plasma, 5 - 10 mm, which immediately begins rapidly expand into the surroundings, and will set in motion surrounding air.
Mara baada ya kutokwa umeme, kwa maana ya kwanza Return Stroke, Sehemu ya nguvu ya utekelezaji, wakati ambao kuna kwa muda mfupi, millionths wachache wa sekunde, tu safu nyembamba sana ya plasma, 5-10 mm, ambayo mara moja huanza kwa kasi kupanua katika mazingira, na kuweka katika mwendo a hewa.