North Atlantic Ocean

IHO sea area 23 · -83° to 7° E, 0° to 69° N

in force
44
last 12 months
132
since 1968
15,592
categories
22

In force now · 44

  1. NAVAREA II 324/26 · Towing2026-09-14
    Towing operations
  2. NAVAREA IV 851/26 · Surveys2026-09-04
    Survey operations by the vessel Ocean Intervention II continue in Trinidad and Tobago along a trackline until September 14, 07:00 UTC; wide berth requested.
  3. NAVAREA IV 832/26 · Surveys2026-08-27
    Underwater operations by vessel Seven Seas near Trinidad and Tobago until 052200 UTC December, 500 meter berth requested.
  4. UKWZ 501/26 · Exercises2026-08-17
    Live weapons firings occur daily from 0700 to 1700 UTC, 18-21 August, within 17 miles of 57-24.9N 007-59.7W west of South Uist in the Hebrides.
  5. NAVAREA IV 789/26 · Cable ops2026-08-14
    Underwater operations by cable ship ILE D'YEU along trackline in South Atlantic off Brazil, daily until 13 September, wide berth requested.
  6. NAVAREA IV 831/26 · Surveys2026-08-13
    Survey operations by vessel HOS Ridgewind are underway off Guyana from September 1 to November 20, 2026, in a bounded area; wide berth requested.
  7. NAVAREA II 298/26 · Wrecks2026-08-07
    A newly discovered dangerous wreck is located at 23-57.50N 015-50.00W near Cap Blanc; navigate with caution.
  8. UKWZ 474/26 · Nav aids2026-08-05
    Noup Head light at 59-19.9N 003-04.2W near Fair Isle and Westray is temporarily reduced to 12 miles range.
  9. NAVAREA IV 709/26 · Wrecks2026-07-21
    Motor vessel Barima is sunk in the North Atlantic off Guyana at 07 degrees 28.23 minutes north, 58 degrees 23.40 minutes west.
  10. NAVAREA IV 705/26 · Surveys2026-07-20
    Survey operations are underway until 31 December near Guyana by vessel AHT DN87 and tug TELESTO; wide berth requested.
  11. NAVAREA XII 486/26 · Other2026-07-16
    U.S. Coast Guard remote communication facility in Honolulu has unreliable transmissions; broadcasts moved to Guam, DSC responses to Point Reyes.
  12. NAVAREA IV 670/26 · Nav aids2026-07-09
    Galeota Point Light, position 10 degrees 08.30 minutes north 060 degrees 59.50 minutes west, is unlit.
  13. NAVAREA IV 658/26 · Cable ops2026-07-05
    Pipeline operations by vessel Saipem Constellation continue until 31 December off Guyana; wide berth requested.
  14. NAVAREA IV 653/26 · Nav aids2026-07-03
    Broadcast and communication services are unreliable at U.S. Coast Guard remote facilities in Boston, Chesapeake, Charleston, Miami, New Orleans, and San Juan.
  15. NAVAREA IV 649/26 · Cable ops2026-07-02
    Pipeline operations are in progress until 10:00 UTC on October 20 by vessel DLV 2000 near Trinidad and Tobago, with 500-meter berth requested.
  16. NAVAREA IV 621/26 · Surveys2026-06-24
    Underwater operations by vessel Prinsengracht continue in Guyana until 31 Dec; wide berth requested.
  17. NAVAREA IV 616/26 · Surveys2026-06-23
    Survey operations by vessel Moonrise G continue in Guyana waters until November 15; wide berth requested.
  18. NAVAREA IV 615/26 · Surveys2026-06-23
    Survey operations by vessel BGP Prospector continue in the North Atlantic near Guyana until November 15, with wide berth requested.
  19. NAVAREA II 261/26 · Nav aids2026-06-23
    The Cap Hadid lighthouse near Agadir is unlit, located at 31-41.85N 009-39.86W.
  20. NAVAREA IV 586/26 · Surveys2026-06-15
    Underwater operations by vessel Normand Navigator continue until 31 Dec near Guyana, wide berth requested.
  21. NAVAREA IV 552/26 · Surveys2026-06-09
    Survey operations are underway until 16 November by vessel SeaQuest in an area near 58°W 07°N, wide berth requested.
  22. NAVAREA IV 551/26 · Surveys2026-06-09
    Survey operations by vessel Sea Horse II are in progress until 16 November in an area near 07-57N 058-27W to 07-11N 057-33W, wide berth requested.
  23. NAVAREA IV 539/26 · Surveys2026-06-05
    Underwater operations by vessel C-Worker 1 until 31 Dec in area from 07-54.85N 057-06.47W to 08-04.55N 056-50.16W, Guyana. Wide berth requested.
  24. NAVAREA IV 525/26 · Wrecks2026-06-02
    An obstruction 20 meters below surface lies at 24-50.93N 077-48.83W in the Bahamas until 30 November; cancel message Dec 1, 2026.
  25. NAVAREA IV 413/26 · Nav aids2026-05-04
    Brigand Hill Light at 10-29.61N 061-04.20W now flashes five times every 20 seconds, visible 17 miles; navigational warning 406/26 is cancelled.
  26. HYDROLANT 585/26 · Nav aids2026-03-23
    PAP ODAS buoy is now at 48-56.30N 016-22.50W; Hydrolant 579/26 is cancelled.
  27. NAVAREA I 61/26 · Other2026-03-23
    Porcupine Abyssal Plain ODAS buoy moved to 48-56.3N 016-22.5W, cancelling warning 59/26.
  28. NAVAREA IV 222/26 · Wrecks2026-03-10
    Barge Trader III lies sunk at 06-53.77N 057-53.43W in the North Atlantic near Guyana.
  29. NAVAREA IV 98/26 · Surveys2026-02-03
    Survey operations by vessel Fugro Brasilis are ongoing until 31 December 2026 off Guyana; wide berth requested.
  30. NAVAREA IV 55/26 · Nav aids2026-01-20
    Punta Barlovento Light at 20-43.20N 075-19.15W has its range changed to 14 miles.
  31. NAVAREA IV 7/26 · Cable ops2026-01-02
    Pipeline operations are in progress in the North Atlantic through December 31, 2026, by multiple vessels; wide berth is requested.
  32. NAVAREA IV 1431/25 · Surveys2025-12-31
    Survey operations by vessel BOS PRINCESS continue until 31 Dec 2026 off Guyana; wide berth requested.
  33. NAVAREA IV 1430/25 · Surveys2025-12-31
    Underwater operations by vessel Aldemir Souza Tide continue until 31 Dec 2026 in the North Atlantic; wide berth requested.
  34. NAVAREA IV 1413/25 · Nav aids2025-12-24
    Two ocean data buoys are established in the North Atlantic near Guyana at 06-57.93N 057-48.54W.
  35. NAVAREA IV 1282/25 · Nav aids2025-11-19
    The La Desirade light in Guadeloupe, Caribbean Sea, at 16-20.00N 061-00.33W is unlit.
  36. NAVAREA IV 872/25 · Nav aids2025-08-16
    Due to Hurricane Erin, lateral buoys 1, 2, and 4 are removed in the Dominican Republic, North Atlantic.
  37. NAVAREA IV 761/25 · Nav aids2025-07-22
    Safewater buoy LS at position 06-04.81N 055-12.82W is missing in Suriname, North Atlantic.
  38. NAVAREA IV 616/25 · Nav aids2025-06-13
    Messaging services are unavailable at USCG remote communication facilities in Boston, Chesapeake, Charleston, Miami, and New Orleans.
  39. NAVAREA IV 746/24 · Nav aids2024-06-27
    A data buoy has been established in the western North Atlantic at 47-53.93N 046-47.74W.
  40. NAVAREA IV 325/24 · Nav aids2024-03-21
    An ODAS buoy is established at 07-02.67N 057-58.65W in the western North Atlantic near Guyana.
  41. NAVAREA IV 12/24 · Surveys2024-01-03
    Underwater operations are in progress by vessels Bourbon Calm and Bourbon Sapphire in the Western North Atlantic; wide berth requested.
  42. NAVAREA IV 1377/23 · Nav aids2023-11-28
    Cabo Engano Lighthouse at 18-36.80N 068-19.50W is unlit.
  43. NAVAREA IV 227/22 · Nav aids2022-03-04
    In the Western North Atlantic, the Puerto Plata light in the Dominican Republic at 19-48.2N 070-41.7W is unlit.
  44. NAVAREA IV 1157/21 · Nav aids2021-12-28
    Ile de la Tortue west point light at 20-03-44N 072-58-02W is unlit.

Longest in force

  1. NAVAREA IV 1157/21 · Nav aids2021-12-28
    Ile de la Tortue west point light at 20-03-44N 072-58-02W is unlit.
  2. NAVAREA IV 227/22 · Nav aids2022-03-04
    In the Western North Atlantic, the Puerto Plata light in the Dominican Republic at 19-48.2N 070-41.7W is unlit.
  3. NAVAREA IV 1377/23 · Nav aids2023-11-28
    Cabo Engano Lighthouse at 18-36.80N 068-19.50W is unlit.
  4. NAVAREA IV 12/24 · Surveys2024-01-03
    Underwater operations are in progress by vessels Bourbon Calm and Bourbon Sapphire in the Western North Atlantic; wide berth requested.
  5. NAVAREA IV 325/24 · Nav aids2024-03-21
    An ODAS buoy is established at 07-02.67N 057-58.65W in the western North Atlantic near Guyana.

By year

68
72
75
76
77
78
79
81
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
00
01
02
03
04
05
06
07
08
09
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26

By month (all years)

J
F
M
A
M
J
J
A
S
O
N
D

By category · since 1997

Incidents2,98419%
Exercises2,09313%
Cable ops1,58610%
Missiles1,53210%
Nav aids1,51410%
Spills1,2448%
Surveys1,0817%
Derelicts9746%
Icebergs7695%
Other5754%
Quakes2832%
Debris2802%
Containers2412%
Ordnance1501%
Storms911%
Restricted791%
Wrecks710%
Piracy230%
Towing70%
Volcanic50%
Mines50%
Structures50%

Archive · 15,548 cancelled

  1. NAVAREA IV 65/02 · Exercises2002-02-23 → 2002-02-27
    Hazardous operations 281118Z to 281423Z feb, alternate 011051Z to 011354Z mar in areas: a. between 28-42N…
  2. HYDROLANT 426/02 · Cable ops2002-02-22 → 2002-03-01
    Underwater cable operations in progress until further notice by cableship dock express 20 vicinity 38-05N…
  3. HYDROLANT 384/02 · Incidents2002-02-17 → 2002-02-17
    Distress signal received on 406 mhz within three miles of 46-42-23N 019-37-28W at 171415Z feb
  4. NAVAREA IV 59/02 · Exercises2002-02-17 → 2002-02-22
    Hazardous operations 211215Z to 211401Z feb, alternate 221221Z to 221359Z feb in areas bound by: a. 28-34N…
  5. HYDROLANT 382/02 · Exercises2002-02-17 → 2002-02-23
    Hazardous operations 2000Z to 0859Z commencing daily 22 feb thru 23 mar in areas: a. within 12 miles of…
  6. NAVAREA IV 58/02 · Exercises2002-02-17 → 2002-02-23
    Hazardous operations 2000Z to 0859Z commencing daily 22 feb thru 23 mar in areas: a. within 12 miles of…
  7. HYDROLANT 378/02 · Cable ops2002-02-16 → 2002-02-22
    Underwater cable operations in progress until further notice by cableship dock express 20 vicinity 38-36N…
  8. HYDROLANT 369/02 · Exercises2002-02-14 → 2002-02-15
    Hazardous operations 0900Z to 1700Z daily 15 thru 17 feb within 30 miles of 57-30N 008-40W
  9. NAVAREA IV 56/02 · Exercises2002-02-14 → 2002-02-17
    Hazardous operations 2000Z to 0859Z commencing daily 19 feb thru 20 mar in areas: a. within 12 miles of…
  10. HYDROLANT 365/02 · Exercises2002-02-14 → 2002-02-17
    Hazardous operations 2000Z to 0859Z commencing daily 19 feb thru 20 mar in areas: a. within 12 miles of…
  11. HYDROLANT 354/02 · Other2002-02-12 → 2002-03-29
    One red flare sighted in 31-59N 017-25W at 120115Z feb
  12. NAVAREA IV 52/02 · Exercises2002-02-11 → 2002-02-13
    Hazardous operations 1130Z to 1800Z daily 12 and 13 feb in area bound by 40-19N 067-52W, 38-55N 065-55W,…
  13. HYDROLANT 338/02 · Surveys2002-02-09 → 2002-02-26
    Oceanographic operations 11 thru 26 feb by M/V poseidon: a. in area between 37-00N 31-00N and 035-00W 022-00W
  14. HYDROLANT 325/02 · Cable ops2002-02-07 → 2002-02-14
    Underwater cable operations in progress until further notice by cableship dock express 20 along trackline…
  15. NAVAREA IV 46/02 · Surveys2002-02-05 → 2002-02-25
    Survey operations in progress by vessel towing equipment: a. 05 thru 14 feb in area between 23-30N 24-30N…
  16. HYDROLANT 286/02 · Nav aids2002-02-04 → 2002-02-05
    Monarch islands light 57-32N 007-42W unlit
  17. HYDROLANT 274/02 · Cable ops2002-02-03 → 2002-02-07
    Underwater cable operations in progress until 06 feb by M/V dock express 20 vicinity of 48-03N 010-42W
  18. HYDROLANT 272/02 · Incidents2002-02-03 → 2002-02-04
    Last known position 47-34N 018-51W at 291000Z jan
  19. HYDROLANT 255/02 · Incidents2002-02-01 → 2002-02-02
    Distress signal received on 406 mhz from F/V le parrain within three miles of 59-04.4N 013-52.2W at 011945Z…
  20. HYDROLANT 253/02 · Exercises2002-02-01 → 2002-02-04
    Hazardous operations 0900Z to 1700Z daily 02 thru 08 feb within 30 miles of 57-30N 008-40W

Sea boundaries: Flanders Marine Institute (2018), IHO Sea Areas v3, marineregions.org (CC BY 4.0). Not for navigation — follow official NAVAREA / coastal broadcasts.