Blowing The Fog Away
This quote brought back memories of some years ago when an Air UK F-27 was diverting to Luton from Stansted but the RVR dropped on 08. An Aer Turas DC-8 was about to depart so he asked he could be on final approach after the DC-8 departed just in case it might move some fog. Sure enough the RVR went up and he landed safely!