First of all, I’d steer clear of this discussion if you don’t like spoilers and I would highly suggest using the spoiler tags when commenting! I’ve heard some stuff about the weather in Strangerv...
As I progressed closer and closer to the end, that cloud got more and more ominous, and by the very end, it was throwing lighting from that cloud to the ground. By the time the issue was over, don't want to spoil it too much, the sky was normal, and the ominous cloud is gone.