North Atlantic Ocean

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

in force
46
last 12 months
138
since 1968
15,598
categories
22

In force now · 46

  1. NAVAREA II 326/26 · Exercises2026-09-14
    A firing exercise is taking place in the Canarias area within 20 miles of 26-50N 014-00W between 270 and 360 degrees, and vessels should navigate with caution.
  2. NAVAREA II 325/26 · Exercises2026-09-14
    A firing exercise is taking place within 30 nautical miles of 14-28N 017-52W near Cap Timiris, Sierra Leone; mariners should navigate with caution.
  3. NAVAREA II 324/26 · Towing2026-09-14
    The tug Boulder is towing the barge H-408 from Italy to the Irish Sea with a 600-metre tow, last seen at 38-16N 009-43W on 14 September 2026, so navigate with caution.
  4. 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.
  5. 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.
  6. 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.
  7. 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.
  8. 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.
  9. 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.
  10. 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.
  11. 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.
  12. 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.
  13. 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.
  14. 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.
  15. NAVAREA IV 658/26 · Cable ops2026-07-05
    Pipeline operations by vessel Saipem Constellation continue until 31 December off Guyana; wide berth requested.
  16. 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.
  17. 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.
  18. NAVAREA IV 621/26 · Surveys2026-06-24
    Underwater operations by vessel Prinsengracht continue in Guyana until 31 Dec; wide berth requested.
  19. NAVAREA IV 616/26 · Surveys2026-06-23
    Survey operations by vessel Moonrise G continue in Guyana waters until November 15; wide berth requested.
  20. 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.
  21. NAVAREA II 261/26 · Nav aids2026-06-23
    The Cap Hadid lighthouse near Agadir is unlit, located at 31-41.85N 009-39.86W.
  22. NAVAREA IV 586/26 · Surveys2026-06-15
    Underwater operations by vessel Normand Navigator continue until 31 Dec near Guyana, wide berth requested.
  23. 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.
  24. 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.
  25. 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.
  26. 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.
  27. 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.
  28. HYDROLANT 585/26 · Nav aids2026-03-23
    PAP ODAS buoy is now at 48-56.30N 016-22.50W; Hydrolant 579/26 is cancelled.
  29. NAVAREA I 61/26 · Other2026-03-23
    Porcupine Abyssal Plain ODAS buoy moved to 48-56.3N 016-22.5W, cancelling warning 59/26.
  30. 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.
  31. NAVAREA IV 98/26 · Surveys2026-02-03
    Survey operations by vessel Fugro Brasilis are ongoing until 31 December 2026 off Guyana; wide berth requested.
  32. 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.
  33. 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.
  34. NAVAREA IV 1431/25 · Surveys2025-12-31
    Survey operations by vessel BOS PRINCESS continue until 31 Dec 2026 off Guyana; wide berth requested.
  35. 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.
  36. 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.
  37. 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.
  38. 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.
  39. 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.
  40. 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.
  41. 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.
  42. 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.
  43. 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.
  44. NAVAREA IV 1377/23 · Nav aids2023-11-28
    Cabo Engano Lighthouse at 18-36.80N 068-19.50W is unlit.
  45. 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.
  46. 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%
Exercises2,09813%
Cable ops1,58710%
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 · 15,552 cancelled

  1. NAVAREA IV 376/00 · Derelicts2000-09-11 → 2000-09-18
    Derelict 25 foot M/V salty two adrift in 32-32.42N 079-52.83W
  2. HYDROLANT 3136/00 · Cable ops2000-09-11 → 2000-09-14
    Seismic survey in progress until 13 sep by M/V mezen towing 8000 meter long cable in area bound by 05-40N…
  3. NAVAREA IV 374/00 · Cable ops2000-09-10 → 2000-09-21
    Cable operations in progress until 24 sep by cableship vercors along trackline between 40-00N 047-00W and…
  4. HYDROLANT 3125/00 · Cable ops2000-09-09 → 2000-09-10
    Cable operations 09 thru 24 sep by cableship vercors along trackline between 40-00N 047-00W and 40-00N 046-00W
  5. HYDROLANT 3120/00 · Cable ops2000-09-09 → 2000-09-14
    Seismic survey in progress until 13 sep by M/V western inlet towing 6667 meter long cable in area bound by…
  6. NAVAREA IV 372/00 · Ordnance2000-09-08 → 2000-09-14
    Underwater ordnance detonations 141000Z to 142000Z sep in area bound by 62-46N 036-18W, 64-30N 033-10W,…
  7. HYDROLANT 3118/00 · Ordnance2000-09-08 → 2000-09-14
    Underwater ordnance detonations 141000Z to 142000Z sep in area bound by 62-46N 036-18W, 64-30N 033-10W,…
  8. HYDROLANT 3113/00 · Exercises2000-09-08 → 2000-09-15
    Hazardous operations 2000Z to 0300Z commencing daily 14 sep thru 14 oct in areas: a. within 12 miles of…
  9. HYDROLANT 3100/00 · Incidents2000-09-07 → 2000-09-07
    Distress signal received on 2182 khz from M/V notre dame de salut taking on water in 60-02N 010-28W at…
  10. HYDROLANT 3095/00 · Cable ops2000-09-07 → 2000-09-09
    Seismic survey 08 thru 09 sep by M/V western inlet towing 6667 meter long cable in area bound by 02-43N…
  11. HYDROLANT 3094/00 · Cable ops2000-09-07 → 2000-09-11
    Seismic survey in progress until 10 sep by M/V mezen towing 8000 meter long cable in area bound by 04-30N…
  12. HYDROLANT 3092/00 · Icebergs2000-09-06 → 2000-09-13
    Iceberg sighted in 51-12N 049-15W at 061618Z sep
  13. NAVAREA IV 368/00 · Icebergs2000-09-06 → 2000-09-13
    Iceberg sighted in 51-12N 049-15W at 061618Z sep
  14. NAVAREA IV 366/00 · Nav aids2000-09-06 → 2000-09-06
    Cape canaveral dgps station 28-27-35N 080-32-35W at reduced power
  15. NAVAREA IV 365/00 · Exercises2000-09-05 → 2000-09-07
    Hazardous operations 1200Z to 1600Z daily 06 and 07 sep in area bound by 36-42N 072-40W, 36-42N 072-00W,…
  16. NAVAREA IV 364/00 · Cable ops2000-09-05 → 2000-09-17
    Submarine cable operations in progress until 16 sep by cableship global mariner vicinity of trackline…
  17. NAVAREA IV 363/00 · Nav aids2000-09-05 → 2000-09-16
    Cable buoy, yellow, fl y 4 sec, ra ref, established until 15 sep in 38-20.2N 058-08.1W
  18. HYDROLANT 3072/00 · Cable ops2000-09-05 → 2000-09-07
    Seismic survey in progress until 07 sep by M/V western inlet towing 6667 meter long cable in area bound by…
  19. NAVAREA IV 362/00 · Derelicts2000-09-04 → 2000-09-11
    25 foot vessel, orange hull, partially submerged and adrift in 30-43.74N 080-49.44W
  20. NAVAREA IV 361/00 · Exercises2000-09-04 → 2000-09-09
    Hazardous operations 081230Z to 081401Z sep, alternate 091207Z to 091338Z sep in areas bound by: a. 28-32N…

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