There was a notorious occasion back in 2008 / 2009 ? I can't recall exactly when (maybe somebody has it saved) when exactly what you described happened!It was one of the biggest debacles in cold model watching I can ever recall and left a very nasty aftertaste to this day. But, please, I am NOT saying a decent cold shot won't happen, it is looking pretty good, just that without UKMO fully on song, I'm very cautious.
OK I'll shut up about now ...
.......until the 12z - LOL