Board Thread:Naruto Discussions/@comment-25409224-20140913064011/@comment-24649454-20141016164540

You don't sound rude in the slightest, even less so with your "pre-warning" :)

Anyway, I agree with what you say regarding the anime, in the anime the storm clouds are already forming before Sasuke uses the Dragon Flame Jutsu. But the fact of the matter is that the manga shows the sky being clear until after Sasuke uses the Dragon Flame Jutsu, which in terms of Physics makes sense as Amaterasu is at too low of an altitude for it to affect the cloud composition unlike the Dragon Flame Jutsu which rises into it. The official descriptions of Kirin and the Dragon Flame Jutsu from the 3rd databook also state that Dragon Flame Jutsu is all that is required to create the storm clouds for Kirin to be used.