Did the gods have anything to do with the hurricane? Does Thor cause a thunderstorm?

I don´t know. Perhaps the gods, perhaps the ettins, perhaps the wights of land and sea... or perhaps none. Sometimes nature is just nature. It happens.

Does Thor cause a thunderstorm? No, not always, not necessarily. Maybe not ever. But he is in the thunderstorm all the same. Does that mean the storm does not have natural causes? No. It is caused by events in nature. But those events are still touched with the powers of the gods.

Did the gods send the storm? I don´t think so. But can they use it to send a message since it is there? Why not?

Katrina was like looking down and seeing Odin´s eye in Mimnir´s well. Let the vision lead you as it will.