ZCZC SA37 NCC-HAMBURG NCC-HAMBURG 051300 UTC SEP 26 NAV. WARN. NO. 503 GERMAN BIGHT. EASTERLY WINDFARM RIFFGAT . RED BUOY NR.2 ADRIFT IN APPROX. 53-423N 006-358E. CANCEL THIS MESSAGE 060100 UTC SEP 26. NNNN