CoastalUS - HYDROLANTMessages320/26(24)320/26(24)SÉCURITÉArchivedReceived: 15 Feb 2026, 00:00Archived: 2 Mar 2026, 19:01Updated: 5 Nov 2026, 17:43SubscribeCopyShareShow on mapPrintExportSearchKeywordsOperationsUNDERWATER OPERATIONS, wide berth requestedMessage contentSOUTH ATLANTIC. BRAZIL. DNC 01. 1. UNDERWATER OPERATIONS 0800Z TO 1800Z DAILY 16 FEB THRU 02 MAR BY M/V COMANDO B AND M/V PORTO DOLICHA IN 20-24.07S 040-07.90W. WIDE BERTH REQUESTED. 2. CANCEL THIS MSG 021900Z MAR 26.Location mapOpen on the full mapMore from US - HYDROLANT2221/262026-11-05SOUTH ATLANTIC. ANTARCTICA. 1. ICEBERGS REPORTED IN: A. A81, 55-46.00S 035-38.00W. B. D33B, 55-35.00S 041-41.00W. C. D35, 60-12.00S 044-37.00W. D. A83, 59-31.00S 049-25.00W. E. A85, 56-2220/262026-11-05SOUTH ATLANTIC. BRAZIL. 1. HAZARDOUS OPERATIONS 100900Z TO 102100Z NOV IN AREA WITHIN TEN MILES OF 23-44.00S 041-38.00W. 2. CANCEL THIS MSG 102200Z NOV 26.2219/262026-11-04SOUTH ATLANTIC. GABON. 1. CONTAINERS AND DEBRIS ADRIFT IN VICINITY 04-11.00S 010-39.00E ON 02 NOV. 2. CANCEL THIS MSG 072221Z NOV 26.2212/262026-11-04archivedSOUTH ATLANTIC. SCOTIA SEA. SHETLAND ISLANDS. 1. ICEBERGS REPORTED IN: A. A84, 69-40.80S 090-49.80W. B. A85, 56-54.00S 047-05.40W. C. D33A, 63-57.60S 055-13.20W. D. D33C, 61-58.20S 054-14.2116/262026-10-23archivedSEA OF THE HEBRIDES. SCOTLAND. 1. DUBH ARTACH LIGHT 56-08.0N 006-38.1W UNRELIABLE. 2. CANCEL HYDROLANT 1848/26.Later warnings346/26(35)2026-02-18archivedSEA OF THE HEBRIDES. SCOTLAND. DNC 19. CGOC STORNOWAY MF DSC SERVICES AT TIREE SITE 56-30.20N 006-57.80W OFF AIR.345/26(35,37)2026-02-18archivedNORTH SEA. ENGLAND. DNC 20. 1. CGOC MF DSC AND R/T SERVICES OFF AIR AT: A. LERWICK 60-08.90N 001-08.40W. B. GREGNESS 57-07.70N 002-03.20W. C. CULLERCOA347/26(24)2026-02-19archivedSOUTH ATLANTIC. DNC 01. 1. HAZARDOUS OPERATIONS 0800Z TO 2100Z DAILY 24 THRU 26 FEB IN AREA WITHIN TEN MILES OF 25-06.00S 041-13.00W. 2. CANCEL THIS MSGEarlier warnings321/26(24)2026-02-15archivedSOUTH ATLANTIC. DNC 01, DNC 07. 1. SURVEY OPERATIONS IN PROGRESS UNTIL 28 FEB BY M/V SW EMPRESS TOWING TEN 11000 METER LONG CABLES IN AREA BOUND BY 34312/26(57)2026-02-13archivedGULF OF GUINEA. GHANA. DNC 01. DANGEROUS WRECK IN 05-35.74N 000-01.62E.305/26(51)2026-02-12archivedNORTH ATLANTIC. THE GAMBIA. DNC 01. 1. SAFE WATER MARK N2 13-31.71N 016-49.21W UNLIT. 2. CANCEL HYDROLANT 174/26.Back to messages