ZCZC KA93 AVURNAV CHERBOURG 93/26 DOVER - LARGE CAP GRIS-NEZ DRIFTING HAZARDS 1. BUOY ZC2 ADRIFT. INITIAL POSITION 50-53.60N 001-30.90E LAST KNOWN POSITION 50-56.35N 001-34.04E VIRTUAL AIS WILL BE ESTABLISHED TO REPLACE THE MISSING BUOY. NAVIGATE WITH CAUTION 2. CANCEL THIS MSG 020000 UTC NOV 26 NNNN