Aids-to-navigation notices in the North Atlantic Ocean

Lights extinguished, buoys off station, RACON/NAVTEX outages.

in force
21
last 12 months
14
vs previous 12 (8)
+75%
since 1996
1,499

Coverage note: the NGA archive ends 2024-05 and live collection began 2026-08-17. Warnings issued in between are here only if they were still in force when collection started, so 2024–2026 are under-counted.

In force now · 21

  1. HYDROLANT 1510/26in force2026-08-05
    Noup Head light in the Orkney Islands has its range reduced to 12 miles.
    North Atlantic · Orkney Islands
  2. HYDROLANT 1503/26in force2026-08-04
    El Hank Light at 33-36.60N 007-39.28W is unlit.
    North Atlantic · Morocco
  3. NAVAREA II 295/26in force2026-08-04
    El Hank Lighthouse at Casablanca, 33-36.60N 007-39.28W, is unlit.
    Casablanca
  4. NAVAREA IV 750/26in force2026-08-02
    NAVTEX station Miami at 25-30N 080-23W is inoperative; NAVAREA IV 748/26 is cancelled.
    Western North Atlantic · Florida
  5. HYDROLANT 1421/26in force2026-07-23
    Sidi Ifini lighthouse in Morocco, at 29-22.50N 010-10.70W, is unlit.
    Morocco
  6. NAVAREA IV 670/26in force2026-07-09
    Galeota Point Light, position 10 degrees 08.30 minutes north 060 degrees 59.50 minutes west, is unlit.
    North Atlantic
  7. NAVAREA IV 653/26in force2026-07-03
    Broadcast and communication services are unreliable at U.S. Coast Guard remote facilities in Boston, Chesapeake, Charleston, Miami, New Orleans, and San Juan.
    North Atlantic
  8. NAVAREA II 261/26in force2026-06-23
    The Cap Hadid lighthouse near Agadir is unlit, located at 31-41.85N 009-39.86W.
    Agadir
  9. NAVAREA IV 413/26in force2026-05-04
    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.
    Caribbean Sea
  10. HYDROLANT 585/26in force2026-03-23
    PAP ODAS buoy is now at 48-56.30N 016-22.50W; Hydrolant 579/26 is cancelled.
    North Atlantic
  11. NAVAREA IV 55/26in force2026-01-20
    Punta Barlovento Light at 20-43.20N 075-19.15W has its range changed to 14 miles.
    North Atlantic · Cuba
  12. NAVAREA IV 1413/25in force2025-12-24
    Two ocean data buoys are established in the North Atlantic near Guyana at 06-57.93N 057-48.54W.
    North Atlantic · Guyana
  13. NAVAREA IV 1282/25in force2025-11-19
    The La Desirade light in Guadeloupe, Caribbean Sea, at 16-20.00N 061-00.33W is unlit.
    Caribbean Sea · Guadeloupe
  14. NAVAREA IV 872/25in force2025-08-16
    Due to Hurricane Erin, lateral buoys 1, 2, and 4 are removed in the Dominican Republic, North Atlantic.
    North Atlantic · Dominican Republic
  15. NAVAREA IV 761/25in force2025-07-22
    Safewater buoy LS at position 06-04.81N 055-12.82W is missing in Suriname, North Atlantic.
    North Atlantic · Suriname
  16. NAVAREA IV 616/25in force2025-06-13
    Messaging services are unavailable at USCG remote communication facilities in Boston, Chesapeake, Charleston, Miami, and New Orleans.
    Western North Atlantic
  17. NAVAREA IV 746/24in force2024-06-27
    A data buoy has been established in the western North Atlantic at 47-53.93N 046-47.74W.
    Western North Atlantic
  18. NAVAREA IV 325/24in force2024-03-21
    An ODAS buoy is established at 07-02.67N 057-58.65W in the western North Atlantic near Guyana.
    Western North Atlantic · Guyana
  19. NAVAREA IV 1377/23in force2023-11-28
    Cabo Engano Lighthouse at 18-36.80N 068-19.50W is unlit.
    Caribbean Sea · Dominican Republic
  20. NAVAREA IV 227/22in force2022-03-04
    In the Western North Atlantic, the Puerto Plata light in the Dominican Republic at 19-48.2N 070-41.7W is unlit.
    Western North Atlantic · Dominican Republic
  21. NAVAREA IV 1157/21in force2021-12-28
    Ile de la Tortue west point light at 20-03-44N 072-58-02W is unlit.
    Western North Atlantic · Haiti

Longest in force

  1. NAVAREA IV 1157/21in force2021-12-28 · 1,698 d
    Ile de la Tortue west point light at 20-03-44N 072-58-02W is unlit.
    Western North Atlantic · Haiti
  2. NAVAREA IV 227/22in force2022-03-04 · 1,631 d
    In the Western North Atlantic, the Puerto Plata light in the Dominican Republic at 19-48.2N 070-41.7W is unlit.
    Western North Atlantic · Dominican Republic
  3. NAVAREA IV 1377/23in force2023-11-28 · 998 d
    Cabo Engano Lighthouse at 18-36.80N 068-19.50W is unlit.
    Caribbean Sea · Dominican Republic
  4. NAVAREA IV 325/24in force2024-03-21 · 884 d
    An ODAS buoy is established at 07-02.67N 057-58.65W in the western North Atlantic near Guyana.
    Western North Atlantic · Guyana
  5. NAVAREA IV 746/24in force2024-06-27 · 786 d
    A data buoy has been established in the western North Atlantic at 47-53.93N 046-47.74W.
    Western North Atlantic

By year

96
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

Other hazards in the North Atlantic Ocean

Archive · 1,478 cancelled

  1. HYDROLANT 274/142014-01-29 → 2014-01-30
    Mrcc shetland mf dsc and r/t services off air: a. shetland 60-09N 001-08W
    Shetland Islands · Radio Services
  2. NAVAREA IV 29/142014-01-11 → 2014-01-12
    Puerto Rico-northwest Coast
  3. HYDROLANT 3351/132013-12-26 → 2013-12-27
    Orkney Islands
    Scotland-north Coast
  4. HYDROLANT 3335/132013-12-24 → 2013-12-26
    Orkney Islands
    Scotland-north Coast
  5. NAVAREA IV 815/132013-12-23 → 2014-03-31
    Trinidad and tobago
    Western North Atlantic
  6. NAVAREA IV 808/132013-12-20 → 2013-12-20
    Puerto Rico-northwest Coast
  7. NAVAREA IV 799/132013-12-17 → 2013-12-19
    Cancel this msg 191700Z dec 13
    Puerto Rico-northwest Coast
  8. HYDROLANT 3202/132013-12-11 → 2013-12-13
    Cancel HYDROLANT 3191/13
    Scotland-north Coast · Orkney Islands
  9. HYDROLANT 3191/132013-12-10 → 2013-12-11
    Scotland-north Coast
  10. HYDROLANT 3133/132013-12-05 → 2014-02-08
    Morocco
    Eastern North Atlantic
  11. HYDROLANT 3022/132013-11-27 → 2014-01-07
    Morocco-northwest Coast
  12. NAVAREA IV 734/132013-11-21 → 2013-11-24
    Nova Scotia
    Western North Atlantic
  13. HYDROLANT 2937/132013-11-20 → 2016-02-28
    Eastern North Atlantic
  14. HYDROLANT 2838/132013-11-10 → 2013-11-10
    Mrcc shetland mf dsc and r/t services at collafirth hill 60-32N 001-23W off air
    Shetland Islands · Radio Services
  15. HYDROLANT 2769/132013-11-04 → 2013-11-09
    French Guiana
    Western North Atlantic
  16. NAVAREA IV 688/132013-11-04 → 2013-11-20
    French Guiana
    Western North Atlantic
  17. HYDROLANT 2755/132013-11-03 → 2013-11-04
    Orkney Islands
    Scotland-north Coast
  18. HYDROLANT 2714/132013-10-29 → 2013-10-31
    Scotland-north Coast
  19. NAVAREA IV 653/132013-10-19 → 2013-10-20
    Puerto Rico-northwest Coast
  20. NAVAREA IV 648/132013-10-16 → 2013-11-04
    French Guiana
    North Atlantic
  21. NAVAREA IV 641/132013-10-14 → 2013-10-26
    B. 21-50.0N 070-10.6W
    Western North Atlantic
  22. NAVAREA IV 632/132013-10-11 → 2013-10-19
    Puerto Rico-northwest Coast
  23. HYDROLANT 2515/132013-10-11 → 2013-10-18
    GPS satellite system
    Scotland-north Coast · North Minch
  24. NAVAREA IV 612/132013-10-03 → 2013-10-03
    Puerto Rico-northwest Coast
  25. HYDROLANT 2439/132013-10-02 → 2013-11-16
    Senegal
    Eastern North Atlantic
  26. HYDROLANT 2275/132013-09-16 → 2013-09-16
    Mrcc shetland mf dsc and r/t services off air: a. lerwick 60-09N 001-08W
    Shetland Islands · Radio Services
  27. HYDROLANT 2219/132013-09-11 → 2013-11-27
    Brazil-north Coast
  28. HYDROLANT 2207/132013-09-09 → 2013-09-09
    Dsc station dunnet head 58-40N 003-23W r/t and dsc off air until 091200Z sep
    Scotland-north Coast · Radio Services
  29. HYDROLANT 2195/132013-09-07 → 2013-09-08
    Mrcc shetland mf dsc and r/t services at collafirth hill 60-32N 001-23W off air
    Shetland Islands · Radio Services
  30. HYDROLANT 2055/132013-08-22 → 2013-08-22
    Shetland Islands
    Scotland
  31. HYDROLANT 1959/132013-08-10 → 2013-08-23
    Cancel this msg 231700Z aug 13
    Scotland-northwest Coast
  32. HYDROLANT 1937/132013-08-08 → 2013-08-08
    Mrcc shetland mf dsc and r/t services at collafirth hill 60-32N 001-23W off air
    Shetland Islands · Radio Services
  33. NAVAREA IV 461/132013-08-03 → 2013-08-04
    Guyana
    Western North Atlantic
  34. HYDROLANT 1845/132013-07-29 → 2013-07-31
    Shetland Islands
    Scotland
  35. HYDROLANT 1823/132013-07-26 → 2013-07-27
    Mrcc shetland mf dsc and r/t services at collafirth hill 60-32N 001-23W off air
    Shetland Islands · Radio Services
  36. HYDROLANT 1781/132013-07-23 → 2013-07-25
    Scotland-northwest Coast
    Eastern North Atlantic
  37. HYDROLANT 1778/132013-07-22 → 2013-07-23
    Mrcc shetland mf dsc and r/t services at collafirth hill 60-32N 001-23W inoperative
    Shetland Islands · Radio Services
  38. HYDROLANT 1751/132013-07-19 → 2013-07-22
    Senegal
    Eastern North Atlantic
  39. HYDROLANT 1544/132013-06-25 → 2013-06-25
    Mrcc shetland mf dsc and r/t services at collafirth hill 60-32N 001-23W inoperative
    Shetland Islands · Radio Services
  40. NAVAREA IV 347/132013-06-16 → 2013-06-17
    Western North Atlantic
  41. HYDROLANT 1405/132013-06-07 → 2013-06-10
    Cancel this msg 101700Z jun 13
    Brazil-north Coast
  42. HYDROLANT 1261/132013-05-22 → 2013-05-22
    Mrcc shetland mf dsc and r/t services at collafirth hill 60-32N 001-23W inoperative
    Shetland Islands · Radio Services
  43. NAVAREA IV 286/132013-05-22 → 2017-12-14
    Guyana
    Western North Atlantic
  44. HYDROLANT 1225/132013-05-17 → 2013-06-03
    Cancel this msg 031600Z jun 13
    Brazil-north Coast
  45. NAVAREA IV 271/132013-05-16 → 2013-05-18
    Puerto Rico-northwest Coast
  46. NAVAREA IV 241/132013-05-04 → 2013-05-05
    Puerto Rico-northwest Coast
  47. NAVAREA IV 231/132013-05-01 → 2013-05-01
    Puerto Rico-northwest Coast
  48. HYDROLANT 953/132013-04-15 → 2013-04-26
    GPS satellite system
    Scotland-north Coast · North Minch
  49. HYDROLANT 866/132013-04-05 → 2013-04-12
    GPS satellite system
    Scotland-west Coast
  50. HYDROLANT 856/132013-04-04 → 2015-11-08
    Cancel HYDROLANT 674/13
    Scotland-west Coast · Outer Hebrides

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

Aids-to-navigation notices in the North Atlantic Ocean — page 16 · seahazards