Runway operating on reduced distance (I think 1900m) mon-wed night and full close sat and sun night anyway. ILS is still CAT 3 (when required, sometimes CAT 1) but I think JAR Ops minima are 300m by day and 550m by night without CL and TDZ. On the night in question I understand that the weather was quickly down below 550m as far as 200m and stayed that way until after 0500z. Some backsides to be smacked methinks.