I don't know if it is well documented or not about sasuke's ultimate attack, but from studying how clouds are formed and weather itself I know for a fact that kirin is not always a possible jutsu to even utilize, not only does sasuke need to launch fire into the atmosphere to prep the attack, but there has to be a cumulative synch from the weather in the area, for instance if sasuke fought over a desert, his attack would not work because of the lack of moisture cancelleing out any attempt, lack of moisture and what not, also if there isn't any updrafts which help create the clouds he would try to be forming he can't make the clouds, now I know naruto doesn't live on the entire realm of astro physics and what not but sometimes they will talk about how fast natural lightning is, but not how it is created which is more science than I thin.k kishi is willing to dig into, any I'm rambling kirin only works if current weather conditions are ideal and not by saskue heating up the damn atmospshere all the time