North Atlantic Ocean

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

in force
44
last 12 months
129
since 1968
15,574
categories
22

In force now · 44

  1. 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.
  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

Incidents2,96919%
Exercises2,09313%
Cable ops1,58510%
Missiles1,53210%
Nav aids1,51410%
Spills1,2448%
Surveys1,0817%
Derelicts9746%
Icebergs7695%
Other5754%
Quakes2832%
Debris2802%
Containers2412%
Ordnance1501%
Storms911%
Restricted791%
Wrecks710%
Piracy230%
Volcanic50%
Mines50%
Structures50%
Towing50%

Archive · 15,530 cancelled

  1. NAVAREA IV 450/03 · Nav aids2003-11-21 → 2003-12-18
    GPS jamming exercises 1600Z to 2000Z daily 22 thru 30 nov and 0001Z to 0400Z daily 02 thru 18 dec within 70…
  2. NAVAREA IV 449/03 · Exercises2003-11-21 → 2003-12-01
    Hazardous operations: a. 0500Z to 0459Z commencing daily 24 thru 30 nov in area bound by 30-45N 080-54W,…
  3. HYDROLANT 2182/03 · Incidents2003-11-21 → 2003-11-22
    11.4 meter S/V welsh dragon, white hull, two persons on board, overdue hilton head to falmouth
  4. HYDROLANT 2164/03 · Incidents2003-11-17 → 2003-11-21
    11 meter S/V welsh dragon, white hull, two persons on board, unreported hilton head to falmouth
  5. HYDROLANT 2154/03 · Containers2003-11-16 → 2003-11-23
    13 containers adrift vicinity 35-13.4N 008-42.4W at 161315Z nov
  6. HYDROLANT 2151/03 · Nav aids2003-11-16 → 2003-11-20
    Dgps station at canivete radiobeacon 00-30.6N 050-24.9W at reduced power 152100Z to 202100Z nov
  7. NAVAREA IV 442/03 · Exercises2003-11-12 → 2003-11-18
    Hazardous operations 161300Z to 182200Z nov within 100 miles of 36-00N 070-00W
  8. HYDROLANT 2113/03 · Other2003-11-10 → 2003-11-14
    Tor ness light 58-46.7N 003-17.6W at reduced intensity
  9. NAVAREA IV 440/03 · Debris2003-11-10 → 2003-11-17
    Odas buoy 41012 adrift in 29-28-15N 080-38-01W
  10. HYDROLANT 2096/03 · Other2003-11-08 → 2003-11-12
    Sule skerry light 59-05N 004-24W at reduced intensity
  11. NAVAREA IV 438/03 · Debris2003-11-07 → 2003-11-14
    Odas buoy adrift vicinity 14-37N 056-16W at 071143Z nov
  12. NAVAREA IV 437/03 · Exercises2003-11-07 → 2003-11-17
    Hazardous operations: a. 0500Z to 0459Z commencing daily 10 thru 16 nov in area bound by 30-45N 080-54W,…
  13. NAVAREA IV 436/03 · Containers2003-11-06 → 2003-11-13
    12 containers adrift in 36-12N 040-54W at 061130Z nov
  14. NAVAREA IV 433/03 · Containers2003-11-06 → 2003-11-13
    Five containers adrift vicinity 40-50N 042-04W
  15. NAVAREA IV 432/03 · Ordnance2003-11-05 → 2003-11-11
    Underwater ordnance detonations 100001Z to 102359Z nov within 120 miles of 64-30N 033-09W
  16. HYDROLANT 2078/03 · Ordnance2003-11-05 → 2003-11-11
    Underwater ordnance detonations 100001Z to 102359Z nov within 120 miles of 64-30N 033-09W
  17. NAVAREA IV 431/03 · Nav aids2003-11-04 → 2003-11-21
    Cape canaveral dgps station 28-27.6N 080-32.6W at reduced power
  18. NAVAREA IV 429/03 · Exercises2003-11-04 → 2003-11-07
    Hazardous operations 052104Z to 060411Z nov, alternate 062104Z to 070411Z nov in areas bound by: a. 29-08N…
  19. HYDROLANT 2065/03 · Ordnance2003-11-03 → 2003-11-08
    Underwater ordnance detonations 070001Z to 072359Z nov within 120 miles of 62-50N 032-00W
  20. HYDROLANT 2054/03 · Incidents2003-11-01 → 2003-12-13
    Distress signal received on 406 mhz from F/V balaou II in 45-21-25N 009-29-13W

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