The "controlling heavens" part sounds to me like hubris, because the water is about 0,01 % of atmosphere. The one who would utilize the potential of atmosphere would be Yamamoto with fire-type zanpakutou, because the 21 % of air is oxygen, powerful boost for burning processes.
IMO, Histugaya won't stand a chance against someone, who would be able to control water at molecular level. He or she would split water on hydrogen and oxygen, surround Hitsugaya with invisible hydrogen and use oxygen from atmosphere as powerful boost. I doubt that many of Captain level Shinigami would survive such inferno, which would start after triggering the explosion.