Given that this ash cloud didn't suddenly appear over the UK on 15 April, anyone aware of any preliminary discussions and plans amongst the airlines, CAA, METS, NATS, etc. for potential disruptions and options? I realize the options would probably be limited to deadheading equipment out and forewarning passengers (and selling stock), but it seems some planning could have or may have taken place.
Or did the jetstream just eddy south unexpectedly and suddenly?
Not a conspiracy theorist, and not pointing fingers at any organizations, just wondering why this slow moving ash cloud suddenly seemed to be a major issue with little to no forewarning -- or was that just a function of the press reportage?