Raffels SA : re your Metars from Cherbourg. interesting but will be different over the sea. Channels islands have a micro climate , more interesting wold be to have the one of Alderney. or Guernsey .
anyway lilFlyboy 262 said there was icing one hour before around 3000 and an overcast cloud base at 5000 , for me that could well explains the request to descend to 2000 . Anyway in those conditions diverting to Guernsey should have been a good option for me. But I was not in the cockpit and maybe icing/weather has nothing to do with this accident.,