Board Thread:Theories and Speculation/@comment-27082825-20150116155842/@comment-26023629-20150122183615

Perhaps that's it. We know, certainly, that the ten- tails is literally capable of creating storms (in canon, storm release has done nothing of the sort, but given that both boil and lava release, which initially seemed only metaphorical in their naming conventions, later proved to have more literal functions as well), so perhaps that is an advanced storm release technique.