ZCZC JA60 241818 UTC FEB 26 VARNA RADIO NAVWARN 093/26 BLACK SEA. BULGARIA. BURGAS GULF. M/V KAIROS AT ANCHOR IN POSITION 42-30.4N 027-48.1E UNLIT AND NUC. CAUTION ADVISED. WIDE BERTH 0.5 NM REQUESTED. NNNN