I re-worked the rw overcast command to provide a smoother cloud transition. Clouds will now roll in at 2% every 10 seconds, instead of 5% every 30 seconds. This should be more visually appealing in game. Change added 30 seconds on to total run time (26 - 26.5 minutes).
I will be reworking the clouds/fog in the other weather systems also, as I have time to do so.