071751Z MAR 25 HYDROARC 18/25(GEN). 1. HYDROARC WARNINGS IN FORCE AS OF 071747Z MAR. ALL THE INFORCE WARNINGS ARE LISTED HERE. 17/2025, 283/2024, 230/2024, 210/2024, 187/2024, 180/2024, 165/2024, 97/2024. 272/2023, 178/2023, 163/2023. 293/2022, 262/2022, 260/2022, 198/2022. 2. THE COMPLETE TEXT OF ALL IN-FORCE HYDROARC BROADCAST WARNINGS ARE AVAILABLE ON THE NGA MARITIME SAFETY INFORMATION WEBSITE AT: MSI.NGA.MIL/NAVWARNINGS. ALTERNATIVELY, THESE MAY BE REQUESTED BY E-MAIL FROM NGA AT NAVSAFETY@NGA.MIL. 3. CANCEL HYDROARC 9/25, 16/25. 062326Z MAR 25 HYDROARC 17/25(15). CORONATION GULF. CANADA. DNC 28. SHOALS REPORTED IN VICINITY: A. 67-51.26N 113-50.18W. B. 67-59.75N 112-31.72W. C. 67-59.83N 112-30.30W. D. 68-00.45N 112-27.09W. E. 68-00.58N 112-24.29W. F. 68-00.72N 112-28.10W. G. 68-00.79N 112-15.46W. H. 68-00.97N 112-13.98W. 170858Z DEC 24 HYDROARC 283/24(16). BEAUFORT SEA. CHUKCHI SEA. ALASKA. DNC 27. SCIENTIFIC MOORINGS ESTABLISHED: A. BCE-24, IN 71-40.40N 154-59.90W, AT DEPTH 108 METERS, TOP FLOAT 20 METERS. B. BCC-24, IN 71-44.10N 155-09.68W, AT DEPTH 291 METERS, TOP FLOAT 21 METERS. C. BCW-24, IN 71-47.80N 155-20.83W, AT DEPTH 165 METERS, TOP FLOAT 40 METERS. D. NAP-24T, IN 74-31.37N 161-56.19W, AT DEPTH 1680 METERS, TOP FLOAT 28 METERS. 041438Z SEP 24 HYDROARC 230/24(15). CANADA. DNC 28. CACHE POINT RACON 68-39.00N 113-35.00W UNRELIABLE. 220920Z AUG 24 HYDROARC 210/24(42). KARA SEA. RUSSIA. DNC 22. SCIENTIFIC MOORING, AT DEPTH FIVE METERS, ESTABLISHED IN 71-17.74N 065-10.78E. ONE MILE BERTH REQUESTED. 121152Z AUG 24 HYDROARC 187/24(15). CORONATION GULF. CANADA. DNC 28. SUB-SURFACE SCIENTIFIC MOORING, AT DEPTH 16 METERS, TOP FLOAT ONE METER ABOVE SEABED, ESTABLISHED IN 68-14.66N 113-19.90W. 081455Z AUG 24 HYDROARC 180/24(42). KARA SEA. RUSSIA. DNC 22. UNDERWATER OPERATIONS IN PROGRESS UNTIL FURTHER NOTICE BY M/V PETR KOTTSOV, M/V IVAN PETROV, AND M/V YURI BABAEV IN AREA BOUND BY 72-09.81N 073-09.94E, 72-25.90N 073-49.59E, 72-33.32N 073-47.21E, 72-33.34N 073-48.06E, 72-26.01N 073-50.64E, 72-09.65N 073-10.59E. WIDE BERTH REQUESTED. 021606Z AUG 24 HYDROARC 165/24(42). KARA SEA. RUSSIA. DNC 22. SURVEY OPERATIONS 08 AUG UNTIL FURTHER NOTICE BY M/V AKVAMARIN TOWING 1000 METER LONG CABLE IN AREA BOUND BY 72-54.70N 066-11.90E, 72-50.70N 067-06.00E, 72-31.00N 067-06.00E, 72-18.50N 067-21.00E, 72-07.70N 066-32.70E, 72-02.60N 066-09.20E, 72-03.10N 065-10.60E, 72-04.40N 063-01.00E, 72-32.50N 063-28.60E, 72-26.70N 064-54.10E, 72-40.80N 065-10.10E, 72-40.50N 065-44.30E . TWO MILE BERTH REQUESTED. 050856Z JUN 24 HYDROARC 97/24(42). KARA SEA. RUSSIA. DNC 22. DANGEROUS WRECK IN 73-09.66N 080-18.83E. 270133Z OCT 23 HYDROARC 272/23(15). LANCASTER SOUND. CANADA. DNC 28. 13.9 METER SHOAL IN 73-43.41N 081-13.62W. 220655Z AUG 23 HYDROARC 178/23(42). KARA SEA. RUSSIA. DNC 22. 1. BOTTOM SCIENTIFIC MOORING ESTABLISHED UNTIL FURTHER NOTICE IN 71-33.88N 072-09.40E. 200 METER BERTH REQUESTED. 2. CANCEL HYDROARC 175/23. 150429Z AUG 23 HYDROARC 163/23(15). BEAUFORT SEA. CANADA. DNC 27. RACON AT PULLEN ISLAND LIGHT 69-46.60N 134-24.40W INOPERATIVE. 111643Z AUG 22 HYDROARC 198/22(15). BEAUFORT SEA. CANADA. DNC 27. RACON AT SHINGLE POINT BEACON 69-00.00N 137-34.50W INOPERATIVE.