CoastalUS - HYDROPACMessages857/26857/26PAN PANArchivedReceived: 20 Mar 2026, 00:00Archived: 30 Mar 2026, 17:21Updated: 4 Nov 2026, 19:32SubscribeCopyShareShow on mapPrintExportSearchKeywordsGeometry refsboundedGeometry phrasesbound byMilitary Operationsgunnery exercise, GUNNERYMessage contentSOUTH CHINA SEA. PHILIPPINES. 1. GUNNERY EXERCISES 241600Z THRU 301600Z MAR IN AREA BOUND BY 14-24.64N 119-23.77E, 14-24.64N 119-39.15E, 14-09.67N 119-39.15E, 14-09.67N 119-23.77E. 2. CANCEL THIS MSG 301700Z MAR 26.Location mapOpen in the full mapLoading map…More from US - HYDROPAC3211/262026-11-04BAY OF BENGAL. INDIA. 1. SURVEY OPERATIONS 05 THRU 20 NOV BY M/V SAMUDRA RATNAKAR IN AREA BOUND BY 17-13.71N 083-11.78E, 17-08.36N 083-15.64E, 17-01.56N 083-05.45E, 17-06.90N 083-01.59E. W3210/262026-11-04EASTERN INDIAN OCEAN. LAKSHADWEEP. 1. HAZARDOUS OPERATIONS 060730Z TO 061330Z NOV IN AREA BOUND BY 10-32.60N 072-37.25E, 10-33.32N 072-38.05E, 10-32.54N 072-38.72E, 10-31.92N 072-37.90E. 2. C3209/262026-11-04BAY OF BENGAL. INDIA. 1. SURVEY OPERATIONS 05 THRU 25 NOV BY M/V SAMUDRA KAUSTUBH IN AREA BOUND BY 21-05.68N 087-27.06E, 21-05.61N 087-41.49E, 20-52.08N 087-41.43E, 20-52.13N 087-27.02E. W3149/262026-10-29archivedARABIAN SEA. GULF OF KHAMBHAT. INDIA. 1. PIPELINE OPERATIONS IN PROGRESS UNTIL FURTHER NOTICE BY VESSEL JD ODYSSEY, M/V TAG 13, TUG CREATIVE 1, M/V SEAMAC GLORIOUS, AND M/V WILCHIEF1 IN ARE3032/262026-10-19archivedEASTERN INDIAN OCEAN. INDIA. 1. HAZARDOUS OPERATIONS 0230Z TO 0800Z DAILY 21, 23, 26, 27, 30 AND 31 OCT IN AREA BOUND BY 10-50.00N 075-00.00E, 10-50.00N 075-35.00E, 10-20.00N 075-35.00E, 1Later warnings859/262026-03-20archivedARABIAN SEA. GULF OF KHAMBHAT. INDIA. 1. PIPELINE OPERATIONS 21 MAR THRU 19 APR BY BARGE KM 180, M/V DHP SHIVALIK, TUG SHIVALI II M/V NAND SARATHI IN ARE867/262026-03-21archived1. DUE TO SPACE WEATHER, HF COMMUNICATIONS AND GNSS POSITIONAL INFORMATION MAY BE DISRUPTED BY THE EFFECTS OF SOLAR FLARES. 2. DURING INCIDENTS AT SEA, MA866/26(74)2026-03-21archivedCORAL SEA. AUSTRALIA. THIRTEEN FIVE SHOAL BUOY IN 13-46.04S 144-09.50E. UNLIT.Earlier warnings860/262026-03-20archived1. HYDROPAC WARNINGS IN FORCE AS OF 201432Z MAR. ALL THE INFORCE WARNINGS ARE LISTED HERE. 859/2026, 858/2026, 857/2026, 856/2026, 855/2026, 854/2026855/262026-03-20archivedBAY OF BENGAL. INDIA. 1. HAZARDOUS OPERATIONS 0430Z TO 0830Z DAILY 24 THRU 27 MAR IN AREAS BOUND BY: A. 17-49.82N 083-33.57E, 17-57.38N 083-49.33E,877/262026-03-20archivedNORTH PACIFIC. GUAM. 1. HAZARDOUS OPERATIONS 272200Z TO 281200Z MAR IN AREA BOUND BY 13-10.00N 144-30.00E, 13-10.00N 144-41.98E, 12-49.98N 144-45.00E,Back to messages