CoastalUS - HYDROLANTMessages1914/25(24)1914/25(24)SÉCURITÉArchivedReceived: 12 Nov 2025, 00:00Archived: 7 Dec 2025, 21:01Updated: 4 Nov 2026, 19:33SubscribeCopyShareShow on mapPrintExportSearchKeywordsOperationsUNDERWATER OPERATIONS, wide berth requestedMessage contentSOUTH ATLANTIC. BRAZIL. DNC 01. 1. UNDERWATER OPERATIONS 1200Z TO 2000Z DAILY 12 NOV THRU 07 DEC BY M/V BIG JOHN VI AND M/V REI ALBERTO IN 24-07.25S 046-15.99W. WIDE BERTH REQUESTED. 2. CANCEL THIS MSG 072100Z DEC 25.Location mapOpen in the full mapLoading map…More from US - HYDROLANT2213/262026-11-04SOUTH ATLANTIC. BRAZIL. 1. HAZARDOUS OPERATIONS 0800Z TO 2100Z DAILY 09 AND 10 NOV IN AREA WITHIN 10 MILES OF 05-44.40S 034-40.00W. 2. CANCEL THIS MSG 102200Z NOV 26.2212/262026-11-04SOUTH 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 054-14.2211/262026-11-04NORTH ATLANTIC. 1. DERELICT 15 METER S/V DARK JADOR, BROWN HULL, CAPSIZED AND ADRIFT IN 45-03.00N 029-03.00W AT 032330Z NOV. 2. CANCEL THIS MSG 070211Z NOV 26.564/22(55)2022-02-25archivedBLACK SEA. UKRAINE. DNC 10. MINING OPERATIONS IN PROGRESS UNTIL FURTHER NOTICE IN AREAS BOUND BY: A. 46-04.0N 033-12.8E, 46-03.1N 033-13.9E, 45-55.6N 033-08.1E, 45-57.3N 032-54.5E, 46-00.9N 033-2010/25(24)2025-11-28archivedSOUTH ATLANTIC. BRAZIL. DNC 01. 1. UNDERWATER OPERATIONS 1000Z TO 2000Z DAILY UNTIL 02 NOV 26 BY M/V FUGRO VAQUITA IN: A. 22-26.32S 040-25.47W. B. 22-27.05S 040-24.71W. WIDE BERTH REQUESLater warnings1919/25(23,29)2025-11-13archivedSCOTIA SEA. SOUTH ATLANTIC. ANTARCTICA. DNC 01, DNC 29. 1. ICEBERGS REPORTED IN: A. A23A, 52-54.00S 040-03.00W. B. A74A, 53-33.00S 028-44.00W. C. A77,1918/25(29)2025-11-13archivedSCOTIA SEA. SOUTH ATLANTIC. SOUTH PACIFIC. ANTARCTICA. DNC 01, DNC 29. 1. ICEBERGS REPORTED IN: A. A81, 65-22.80S 058-01.20W. B. B15AB, 59-24.00S 046-31.1917/25(55)2025-11-13archivedBLACK SEA. ROMANIA. DNC 10. 1. HAZARDOUS OPERATIONS 220600Z TO 221400Z NOV IN AREA BOUND BY 44-25.43N 028-42.50E, 44-29.50N 028-55.58E, 44-25.08N 029-0Earlier warnings1909/25(35,38)2025-11-12archivedNORTH ATLANTIC. SCOTLAND. DNC 19. 1. RADAR JAMMING EXERCISES 0900Z TO 1800Z DAILY 17 THRU 21 AND 24 THRU 28 NOV IN AREA BOUND BY 58-39.00N 013-16.00W,1912/25(24)2025-11-12archivedSOUTH ATLANTIC. BRAZIL. DNC 07. 1. HAZARDOUS OPERATIONS 171100Z TO 182300Z NOV IN AREA BOUND BY 33-02.60S 052-16.00W, 33-11.50S 052-01.70W, 33-58.20S 01910/25(24)2025-11-12archivedSOUTH ATLANTIC. BRAZIL. DNC 01. 1. UNDERWATER OPERATIONS 1200Z TO 2000Z DAILY 12 THRU 15 NOV BY VESSEL SERENO AND VESSEL OCEAN DIVE I IN 24-07.36S 0Back to messages