from memory, the metars for stansted either side of the time of the crash gave a met vis of 700m then 1600m and a cloud ceiling of overcast at 100ft. Stansted had been foggy since first light with rvrs down to 250m and the weather was just starting to improve.
metar egss 030920z auto 35004kt 0600 r04/0750 fg vv/// 11/10
q1015=
rip