The faraday cage effect exists

if the armor got touched by the demon lord thunderstorm, the armor burns and melts to the skin

It's never the rain/snow, it's the thunderstorm that will touch you! cloe the car windows

You are absolutely cooked because you're gonna get sacrificed by the demon lord thunderstorm, you'll get sent to the inside of the mouth of the thunderstorm

THe finger of the dmeon lord thunderstorm touches, go indoors!

likely to be weather simulation