Lightning hitting water with impeccable timing

What did Poseidon do to Thor

This isn't impeccable timing. It is a rocket induced strike. These lightning strikes are triggered intentionally for a variety of research purposes.

https://en.m.wikipedia.org/wiki/Lightning_rocket
https://www.google.com/amp/s/www.wired.com/2015/06/the-lightning-machine/amp

Dammit Thor fishing with you is no fun