Just a thought.
I remember playing IL-2 Sturmonivik when it came out a long time ago and it was so amazing at that time.( 2001-2002) So, I just searched videos of the newest versions of IL-2, "Cliffs Of Dover, Battle of Stalingrad" and are seeing that the weather, skycolors and clouds representation are fantastic and very well-made. Very impressed.
So, I am curious. Why don´t the newer sims have the same quality, or at least trying to adapt the same engine for weather?
(IL-2 Battle of Stalingrad is based on a game engine from 2009 and Cliffs of Dover is based on game engine from 2011>)