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 846/132013-04-03 → 2014-02-08
    Morocco
    Eastern North Atlantic
  2. NAVAREA IV 170/132013-03-29 → 2013-03-29
    Puerto Rico-northwest Coast
  3. HYDROLANT 744/132013-03-24 → 2013-03-24
    Mrcc shetland mf dsc and r/t services at collafirth hill 60-32N 001-23W inoperative
    Shetland Islands · Radio Services
  4. HYDROLANT 674/132013-03-18 → 2013-04-04
    Cancel this msg 052000Z apr 13
    Scotland-west Coast · Outer Hebrides
  5. HYDROLANT 629/132013-03-13 → 2013-05-04
    Ireland-north Coast
  6. HYDROLANT 525/132013-02-27 → 2013-10-19
    Brazil-north Coast
  7. NAVAREA IV 87/132013-02-17 → 2013-02-19
    Nova Scotia
    Western North Atlantic
  8. HYDROLANT 326/132013-02-05 → 2013-02-05
    Mrcc shetland mf dsc and r/t services at collafirth hill 60-32N 001-23W off air
    Shetland Islands · Radio Services
  9. HYDROLANT 309/132013-02-04 → 2013-02-04
    Mrcc shetland mf dsc and r/t services at collafirth hill 60-32N 001-23W off air
    Scotland-north Coast · Shetland Islands · Radio Services
  10. HYDROLANT 281/132013-01-31 → 2013-10-19
    Brazil-north Coast
  11. HYDROLANT 92/132013-01-10 → 2013-02-13
    Senegal
    Eastern North Atlantic
  12. HYDROLANT 81/132013-01-09 → 2013-01-10
    Cancel HYDROLANT 72/13(24,25,26)
    Shetland Islands
  13. HYDROLANT 3091/122012-12-31 → 2013-01-01
    Scotland-north Coast
  14. HYDROLANT 3087/122012-12-31 → 2013-01-01
    Scotland-northwest Coast
    Eastern North Atlantic
  15. HYDROLANT 3054/122012-12-27 → 2013-01-14
    Shetland Islands
  16. HYDROLANT 3023/122012-12-23 → 2012-12-23
    Ireland-north Coast
  17. HYDROLANT 2994/122012-12-20 → 2013-10-19
    Brazil-north Coast
  18. HYDROLANT 2964/122012-12-16 → 2012-12-16
    Scotland-northwest Coast
    Eastern North Atlantic
  19. HYDROLANT 2823/122012-11-30 → 2012-12-01
    Shetland Islands
  20. HYDROLANT 2811/122012-11-29 → 2013-06-15
    Shetland Islands
    Scotland-north Coast
  21. NAVAREA IV 714/122012-11-26 → 2012-11-29
    B. 43-29.4N 063-20.4W
    Western North Atlantic · Nova Scotia
  22. HYDROLANT 2763/122012-11-22 → 2012-11-28
    Morocco
    Eastern North Atlantic
  23. NAVAREA IV 686/122012-11-16 → 2012-11-16
    Cancel this msg 161700Z nov 12
    Florida-south Coast
  24. NAVAREA IV 625/122012-10-26 → 2012-10-26
    Puerto Rico-northwest Coast
  25. NAVAREA IV 601/122012-10-14 → 2012-10-15
    Puerto Rico-northwest Coast
  26. NAVAREA IV 590/122012-10-11 → 2012-10-12
    Puerto Rico-northwest Coast
  27. HYDROLANT 2364/122012-10-09 → 2012-10-09
    Scotland-north Coast
  28. HYDROLANT 2319/122012-10-03 → 2012-10-03
    Scotland-west Coast
  29. HYDROLANT 2318/122012-10-03 → 2012-10-04
    Eastern North Atlantic
  30. HYDROLANT 2311/122012-10-03 → 2012-10-03
    Shetland Islands
  31. NAVAREA IV 567/122012-10-02 → 2012-10-04
    Puerto Rico-northwest Coast
  32. NAVAREA IV 560/122012-09-29 → 2012-09-29
    Puerto Rico-northwest Coast
  33. HYDROLANT 2275/122012-09-29 → 2013-10-19
    Brazil-north Coast
  34. HYDROLANT 2257/122012-09-27 → 2012-10-12
    GPS satellite system
    Scotland-north Coast · North Minch
  35. NAVAREA IV 548/122012-09-23 → 2012-09-23
    Puerto Rico-northwest Coast
  36. HYDROLANT 2186/122012-09-21 → 2012-09-21
    Scotland-west Coast
    Eastern North Atlantic
  37. NAVAREA IV 537/122012-09-17 → 2012-09-17
    Puerto Rico-northwest Coast
  38. NAVAREA IV 512/122012-09-06 → 2012-09-07
    Puerto Rico-northwest Coast
  39. HYDROLANT 1971/122012-08-27 → 2012-09-06
    Morocco
    Eastern North Atlantic
  40. NAVAREA IV 468/122012-08-23 → 2012-08-23
    Puerto Rico-northwest Coast
  41. NAVAREA IV 449/122012-08-15 → 2012-08-15
    Puerto Rico-northwest Coast
  42. NAVAREA IV 448/122012-08-15 → 2012-08-15
    Cancel this msg 152000Z aug 12
    Western North Atlantic · Nova Scotia
  43. NAVAREA IV 444/122012-08-14 → 2012-08-15
    Puerto Rico-northwest Coast
  44. HYDROLANT 1810/122012-08-07 → 2012-08-09
    Morocco-northwest Coast
  45. NAVAREA IV 418/122012-08-01 → 2012-08-10
    Puerto Rico-northwest Coast
  46. NAVAREA IV 408/122012-07-29 → 2012-07-30
    Puerto Rico-northwest Coast
  47. NAVAREA IV 387/122012-07-20 → 2012-07-21
    Puerto Rico-northwest Coast
  48. HYDROLANT 1592/122012-07-16 → 2012-07-16
    Mrcc shetland mf dsc and r/t services at collafirth hill 60-32N 001-23W off air
    Shetland Islands · Radio Services
  49. HYDROLANT 1517/122012-07-09 → 2012-07-09
    Mrcc shetland mf dsc and r/t services at collafirth hill 60-32N 001-23W off air
    Shetland Islands · Radio Services
  50. HYDROLANT 1506/122012-07-08 → 2012-07-10
    Orkney Islands
    Scotland-north Coast

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 17 · seahazards