User blog comment:IamJakuhoRaikoben/Chapter 495: I'm Hungry As Hell, Review./@comment-5672982-20160725171838/@comment-5672982-20160725173746

Yeah, its possible that Storm is Gale being translated differently, as the Storm Dragon technique mentions Air being used, yet both Gale and Storm have different Japanese translations:

Boku ---> Gale Arashi ---> Storm

That said, it would be kind of moronic if God Serena ended up having two Air-based Dragon Slayer magic with no real difference.