North Atlantic Ocean

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

in force
45
last 12 months
125
since 1968
15,570
categories
22

In force now · 45

  1. NAVAREA II 321/26 · Exercises2026-09-07
    Firing exercise in Sierra Leone within 20 nautical miles of 12-44N 017-47W; navigate with caution.
  2. HYDROLANT 1751/26 · Nav aids2026-09-04
    United States Coast Guard remote communication facility Chesapeake at 36-43.70N 076-00.60W is off air from 081200Z to 081700Z Sep.
  3. 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.
  4. 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.
  5. 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.
  6. 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.
  7. 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.
  8. 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.
  9. 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.
  10. 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.
  11. 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.
  12. 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.
  13. 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.
  14. NAVAREA IV 658/26 · Cable ops2026-07-05
    Pipeline operations by vessel Saipem Constellation continue until 31 December off Guyana; wide berth requested.
  15. 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.
  16. 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.
  17. NAVAREA IV 621/26 · Surveys2026-06-24
    Underwater operations by vessel Prinsengracht continue in Guyana until 31 Dec; wide berth requested.
  18. NAVAREA IV 616/26 · Surveys2026-06-23
    Survey operations by vessel Moonrise G continue in Guyana waters until November 15; wide berth requested.
  19. 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.
  20. NAVAREA II 261/26 · Nav aids2026-06-23
    The Cap Hadid lighthouse near Agadir is unlit, located at 31-41.85N 009-39.86W.
  21. NAVAREA IV 586/26 · Surveys2026-06-15
    Underwater operations by vessel Normand Navigator continue until 31 Dec near Guyana, wide berth requested.
  22. 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.
  23. 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.
  24. 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.
  25. 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.
  26. 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.
  27. HYDROLANT 585/26 · Nav aids2026-03-23
    PAP ODAS buoy is now at 48-56.30N 016-22.50W; Hydrolant 579/26 is cancelled.
  28. NAVAREA I 61/26 · Other2026-03-23
    Porcupine Abyssal Plain ODAS buoy moved to 48-56.3N 016-22.5W, cancelling warning 59/26.
  29. 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.
  30. NAVAREA IV 98/26 · Surveys2026-02-03
    Survey operations by vessel Fugro Brasilis are ongoing until 31 December 2026 off Guyana; wide berth requested.
  31. 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.
  32. 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.
  33. NAVAREA IV 1431/25 · Surveys2025-12-31
    Survey operations by vessel BOS PRINCESS continue until 31 Dec 2026 off Guyana; wide berth requested.
  34. 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.
  35. 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.
  36. 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.
  37. 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.
  38. 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.
  39. 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.
  40. 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.
  41. 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.
  42. 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.
  43. NAVAREA IV 1377/23 · Nav aids2023-11-28
    Cabo Engano Lighthouse at 18-36.80N 068-19.50W is unlit.
  44. 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.
  45. 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

Incidents2,96919%
Exercises2,09313%
Cable ops1,58510%
Missiles1,53110%
Nav aids1,51110%
Spills1,2448%
Surveys1,0817%
Derelicts9746%
Icebergs7695%
Other5754%
Quakes2832%
Debris2802%
Containers2412%
Ordnance1501%
Storms911%
Restricted791%
Wrecks710%
Piracy230%
Volcanic50%
Mines50%
Structures50%
Towing50%

Archive · 15,525 cancelled

  1. HYDROLANT 757/04 · Exercises2004-05-04 → 2004-05-05
    Hazardous operations 051200Z to 051500Z may within 45 miles of 57-14N 009-07W
  2. HYDROLANT 739/04 · Nav aids2004-05-01 → 2004-05-18
    AM-1 lightship 01-34N 049-01W missing
  3. HYDROLANT 734/04 · Incidents2004-05-01 → 2004-05-01
    Distress signal received on 121.5 mhz within 11 miles of 46-07.5N 009-15.0W at 010321Z may
  4. NAVAREA IV 143/04 · Exercises2004-04-30 → 2004-05-10
    Hazardous operations: a. 0400Z to 0359Z commencing daily 03 thru 09 may in area bound by 30-45N 080-54W,…
  5. HYDROLANT 726/04 · Incidents2004-04-29 → 2004-04-30
    Distress signal received on 406 mhz from nine meter vessel silent annie, blue hull, one person on board, in…
  6. NAVAREA IV 140/04 · Cable ops2004-04-26 → 2004-05-03
    Cable operations in progress until 02 may by cableship tyco responder within two miles of 25-05.81N 071-23.14W
  7. HYDROLANT 701/04 · Icebergs2004-04-25 → 2004-04-27
    Iceberg sighted in 46-25N 046-40W at 250600Z apr
  8. NAVAREA IV 138/04 · Icebergs2004-04-25 → 2004-04-27
    Iceberg sighted in 46-25N 046-40W at 250600Z apr
  9. NAVAREA IV 134/04 · Exercises2004-04-23 → 2004-05-03
    Hazardous operations: a. 0400Z to 0359Z commencing daily 26 apr thru 02 may in area bound by 30-45N 080-54W,…
  10. NAVAREA IV 128/04 · Nav aids2004-04-19 → 2005-05-02
    Buoy "2", fl r 4 sec, established in 19-47-43.2N 072-11-15.9W
  11. HYDROLANT 651/04 · Other2004-04-19 → 2004-04-26
    Radar target reported in 43-58.2N 042-16.8W on 19 apr
  12. NAVAREA IV 127/04 · Other2004-04-19 → 2004-04-26
    Radar target reported in 43-58.2N 042-16.8W on 19 apr
  13. USGS-USP000CSX2 · Quakes2004-04-19 → 2004-04-22
    Earthquake magnitude 5.6 (mwb) in 3.614N 032.234W, depth 10 km at 190814Z apr 04
  14. NAVAREA IV 125/04 · Exercises2004-04-16 → 2004-04-26
    Hazardous operations: a. 0400Z to 0359Z commencing daily 19 thru 25 apr in area bound by 30-45N 080-54W,…
  15. NAVAREA IV 123/04 · Exercises2004-04-13 → 2004-04-17
    Hazardous operations 160045Z to 160209Z apr, alternate 170045Z to 170209Z apr in areas bound by: a. 28-30N…
  16. NAVAREA IV 120/04 · Nav aids2004-04-12 → 2004-04-12
    Cape canaveral dgps station 28-27.6N 080-32.6W at reduced power
  17. NAVAREA IV 119/04 · Nav aids2004-04-12 → 2004-04-15
    Charleston light 32-45.5N 079-50.6W unlit
  18. HYDROLANT 607/04 · Incidents2004-04-12 → 2004-05-29
    Distress signal received on 121.5 and 406.0 mhz within ten miles of 20-08.5N 037-21.9W
  19. HYDROLANT 599/04 · Incidents2004-04-11 → 2004-04-11
    Distress signal received on 121.5 and 406.0 mhz from M/V sealnes in 20-09.9N 037-08.6W
  20. NAVAREA IV 114/04 · Exercises2004-04-09 → 2004-04-19
    Hazardous operations: a. 0400Z to 0359Z commencing daily 12 thru 18 apr in area bound by 30-45N 080-54W,…

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