If you just want a simple explanation, the water at the Vintage Therion Tour 2side t shirt Symphonic Metal, Death metal, Gothic, Rock site boils and explodes into steam. The radius of the flash into steam depends on the conductivity of the water, but it won’t vary all that much. Steam explosions are violent, so anything nearby will probably be damaged significantly. The voltage divider effect will extend for many meters (tens, if not hundreds), killing or (at greater distances) stunning any higher life present (fish, mammals (including people)). The explosion will cause a wave to travel away from the strike. The effects depend on the voltage of the lightning at the contact point at the ground (water surface). From what I have seen on land, and from what I have read about on water, anything near the strike point is going to get blasted apart. The last statement is imprecise, but almost everything I have ever read about lightning is imprecise. We really don’t know as much as we need to know about lightning.
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