Well he's right. The 5 main London airports are foggy (no problems for Cat3 except holding delays) plus Southend, while Bristol is 50m met vis. EMA, LPL and LBA are foggy but workable and MAN is just above Cat2 limits at present. Our problems at certain times get worse when the RVR fluctuates from 300m or greater to below 300m if it happens to coincide with an influx of flybe arrivals who have to break off their approach, leaving even longer gaps than those MAN is subject to in LVPs.