Just after 1pm clouds building up, weather radar shows rain coming over Irish sea from IOM towards Cumbria, will probably rain by 15.00 . Must have been 8-10 inch of rain in the last week in worky, track access roads and parking under water on Thursday, no drying this early in the year, so virtually impossible to prepare the track, and parking area could turn into a bog, how would spectators feel about that. And the damage would take weeks to repair . A hard but sensible decision made IMO