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 2223/152015-09-08 → 2015-09-09
    Cape wrath light 58-37.5N 005-00.0W unlit
    Eastern North Atlantic · Scotland-north Coast
  2. HYDROLANT 2140/152015-08-31 → 2015-08-31
    NAVTEX station las palmas 28-25.6N 016-20.1W off air
    Eastern North Atlantic · Canary Islands · NAVTEX
  3. HYDROLANT 2129/152015-08-29 → 2015-09-01
    Pointe d'oukacha light 33-37.1N 007-33.9W unlit
    Eastern North Atlantic · Morocco
  4. HYDROLANT 1922/152015-08-06 → 2015-08-10
    RACON at haskier light 57-42.0N 007-41.3W inoperative
    Eastern North Atlantic · Scotland-west Coast
  5. HYDROLANT 1835/152015-07-25 → 2015-07-26
    Mrcc shetland mf and r/t services at fitful head 59-54N 001-23W off air
    Shetland Islands · Radio Services
  6. HYDROLANT 1833/152015-07-25 → 2015-07-25
    Mrcc shetland mf dsc and r/t services off air at: a. compass head 59-52N 001-16W
    Shetland Islands · Orkney Islands · Radio Services
  7. HYDROLANT 1832/152015-07-25 → 2015-07-25
    Mrcc shetland mf dsc and r/t services off air at: a. compass head 59-52N 001-16W
    Shetland Islands · Orkney Islands · Radio Services
  8. NAVAREA IV 560/152015-07-10 → 2015-07-15
    Isabela dgps station 18-28.0N 067-04.3W unusable 151400Z to 151800Z jul
    Puerto Rico-northwest Coast
  9. NAVAREA IV 553/152015-07-09 → 2015-07-14
    Key west dgps station 24-34.9N 081-39.2W unusable 141300Z to 141900Z jul
    Florida-south Coast
  10. HYDROLANT 1649/152015-07-06 → 2015-07-07
    Fugla ness light 60-06.4N 001-20.9W unlit
    Shetland Islands
  11. HYDROLANT 1632/152015-07-04 → 2015-07-09
    NAVTEX station porto santo 33-05.7N 016-20.4W off air
    Eastern North Atlantic · Madeira · NAVTEX
  12. HYDROLANT 1612/152015-07-02 → 2015-07-03
    Mrcc shetland mf dsc and r/t services at collafirth hill 60-32N 001-23W off air
    Shetland Islands · Radio Services
  13. HYDROLANT 1512/152015-06-20 → 2015-06-20
    Fugla ness light 60-06.4N 002-03.7W unlit
    Shetland Islands
  14. HYDROLANT 1427/152015-06-11 → 2015-06-19
    Rabat light 34-02.1N 006-50.8W unlit
    Eastern North Atlantic · Morocco
  15. HYDROLANT 1413/152015-06-10 → 2015-06-10
    NAVTEX station las palmas 28-25.58N 016-20.10W off air
    Eastern North Atlantic · Canary Islands
  16. HYDROLANT 1218/152015-05-18 → 2015-05-19
    NAVTEX station coruna 43-22.0N 008-27.1W off air
    Eastern North Atlantic · Spain · NAVTEX
  17. HYDROLANT 1150/152015-05-12 → 2015-05-13
    NAVTEX station porto santo 33-05.7N 016-20.4W off air
    Eastern North Atlantic · Madeira · NAVTEX
  18. HYDROLANT 1144/152015-05-11 → 2015-05-12
    NAVTEX station coruna 43-22.0N 008-27.1W off air
    Eastern North Atlantic · Spain · NAVTEX
  19. HYDROLANT 1104/152015-05-06 → 2015-05-08
    Cap spartel light 35-47.5N 005-55.3W unlit
    Morocco-northwest Coast
  20. HYDROLANT 1099/152015-05-05 → 2015-05-06
    North unst, muckle flugga light 60-51.3N 000-53.1W unreliable
    Shetland Islands
  21. NAVAREA IV 304/152015-04-19 → 2015-04-20
    Isabela dgps station 18-28.0N 067-04.3W unreliable
    Puerto Rico-northwest Coast
  22. NAVAREA IV 250/152015-04-03 → 2015-04-25
    Galeota point light relocated to 10-08.29N 060-59.49W and range reduced to 13 miles
    Western North Atlantic · Eastern Caribbean Sea · Trinidad and Tobago
  23. NAVAREA IV 178/152015-03-09 → 2015-03-11
    Key west dgps station 24-34.9N 081-39.2W unusable 111400Z to 111800Z mar
    Florida-south Coast
  24. HYDROLANT 463/152015-02-24 → 2015-02-24
    Mrcc shetland mf dsc and r/t services at collafirth hill 60-32N 001-24W off air
    Shetland Islands · Radio Services
  25. HYDROLANT 438/152015-02-21 → 2015-06-06
    Ile de goree light 14-39.8N 017-23.9W unlit
    Eastern North Atlantic · Senegal
  26. HYDROLANT 319/152015-02-07 → 2015-02-10
    Foula island south ness light 60-06.8N 002-03.7W unreliable
    Scotland-shetland Islands
  27. HYDROLANT 312/152015-02-07 → 2015-02-07
    NAVTEX station las palmas 28-25.6N 016-23.1W off air
    Eastern North Atlantic · Canary Islands
  28. HYDROLANT 175/152015-01-21 → 2015-01-21
    Point of fethaland light 60-38.1N 001-18.6W unlit
    Shetland Islands
  29. HYDROLANT 173/152015-01-20 → 2015-01-22
    North unst, muckle flugga light 60-51.3N 000-53.0W unreliable
    Shetland Islands
  30. NAVAREA IV 41/152015-01-16 → 2015-01-16
    Isabela dgps station 18-28.0N 067-04.3W unreliable
    Puerto Rico-northwest Coast
  31. HYDROLANT 95/152015-01-12 → 2015-01-12
    Mrcc shetland mf dsc and r/t services at collafirth hill 60-32N 001-23W off air
    Scotland-north Coast · Shetland Islands · Radio Services
  32. HYDROLANT 80/152015-01-10 → 2015-01-11
    Sule skerry light 59-05.0N 004-24.3W unreliable
    Scotland-north Coast
  33. HYDROLANT 78/152015-01-10 → 2015-01-11
    Mrcc shetland mf dsc and r/t services at collafirth hill 60-32N 001-24W off air
    Shetland Islands · Radio Services
  34. HYDROLANT 3109/142014-12-21 → 2014-12-22
    Mrcc shetland mf dsc and r/t services at collafirth hill 60-32N 001-23W unreliable
    Scotland-north Coast · Shetland Islands · Radio Services
  35. HYDROLANT 3086/142014-12-18 → 2014-12-20
    Monach islands light 57-31.6N 007-41.7W unlit
    Eastern North Atlantic · Scotland-west Coast
  36. HYDROLANT 3046/142014-12-13 → 2014-12-15
    Monach islands light 57-31.6N 007-41.7W unlit
    Eastern North Atlantic · Scotland-west Coast
  37. NAVAREA IV 1055/142014-12-13 → 2014-12-18
    Isabela dgps station 18-28.0N 067-04.3W unusable 181300Z to 181500Z dec
    Puerto Rico-northwest Coast
  38. HYDROLANT 3042/142014-12-13 → 2014-12-13
    Monach islands light 57-31.6N 007-41.7W unreliable
    Eastern North Atlantic · Scotland-west Coast
  39. NAVAREA IV 1048/142014-12-11 → 2014-12-16
    Cancel this msg 161800Z dec 14
    Florida-south Coast
  40. HYDROLANT 3020/142014-12-10 → 2014-12-11
    Mrcc shetland mf dsc and r/t services off air at: a. collafirth hill 60-32N 001-23W
    Scotland-north Coast · Shetland Islands · Radio Services
  41. HYDROLANT 3015/142014-12-10 → 2014-12-10
    Mrcc shetland mf dsc and r/t services at collafirth hill 60-32N 001-23W off air
    Shetland Islands · Radio Services
  42. HYDROLANT 2943/142014-12-02 → 2014-12-04
    Flannan isles light 58-17.3N 007-35.4W unreliable
    Eastern North Atlantic · Scotland-west Coast
  43. HYDROLANT 2940/142014-12-02 → 2014-12-26
    Mehdia oued sebu range rear light 34-15.5N 006-39.6W unlit
    Eastern North Atlantic · Morocco
  44. HYDROLANT 2812/142014-11-19 → 2014-12-23
    El jorf lasfar light 33-09.7N 008-37.7W unlit
    Eastern North Atlantic · Morocco
  45. HYDROLANT 2708/142014-11-10 → 2014-11-13
    North unst, muckle flugga light 60-51.3N 000-53.0W unreliable
    Shetland Islands
  46. HYDROLANT 2670/142014-11-05 → 2015-03-13
    Capo nachtigal light 28-30N 011-21W unlit
    Eastern North Atlantic · Morocco
  47. NAVAREA IV 915/142014-10-26 → 2014-11-01
    Isabela dgps station 18-28.0N 067-04.3W unreliable
    Puerto Rico-northwest Coast
  48. HYDROLANT 2558/142014-10-22 → 2014-10-22
    NAVTEX station sao miguel 37-48N 025-33W off air
    Eastern North Atlantic · Azores · NAVTEX
  49. NAVAREA IV 865/142014-10-14 → 2014-10-17
    Isabela dgps station 18-28.0N 067-04.3W unusable 151200Z to 172200Z oct
    Puerto Rico-northwest Coast
  50. HYDROLANT 2472/142014-10-11 → 2014-10-16
    RACON at ve skerries light 60-22.4N 001-48.7W unreliable
    Scotland · Shetland Islands

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 14 · seahazards