I really like how i get 50-80% delays on my Scandinavian flights because of airport weather conditions...
Last time i checked it's better weather in Scandinavia than there is in Great Britain where i have absolutely no delays!
Come on guys!
What are you spacing your flights? are they scheduled at 1% predicted delays on turnaround?
Turnaround time is not really related to weather based delays...
(and using always the '1% setting' is rather wasteful by the way)