min vis for taxi

[Lemper]

Did hear a story of a 747 that autolanded in thick fog, and came to a stop on the runway ( the aircraft will track and stop on the centreline if full 3B) but the upperdeck was above the fog!! 10k vis from the flight deck, but still couldnt taxi!!

Happened to me in CDG eight years ago. Fine late winter early morning arrival. LVP in progress, Nr 3 for approach CAT III B no DH. RVR 100/90/110; sky obscured. First 74 for that day. When the wheels touched down, we were still VMC on top, and when the nose wheel hit the floor, we were skipping the "cloud tops" from the flight deck. Though we were light (Pax flight 75% full) I switched the autobrakes from 3 to max.....just in case. When stopped, we had no clue of the aircraft position on the runway, but TWR had perfect visual on our big top. The worst feeling was when towed from that position to the gate.