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. NAVAREA IV 847/142014-10-10 → 2014-10-12
    Isabela dgps station 18-28.0N 067-04.3W unreliable
    Puerto Rico-northwest Coast
  2. HYDROLANT 2446/142014-10-08 → 2014-10-09
    Mrcc shetland mf dsc and r/t services at collafirth hill 60-32N 001-23W off air
    Shetland Islands · Radio Services
  3. NAVAREA IV 797/142014-09-23 → 2014-09-25
    Puerto Rico-northwest Coast
  4. NAVAREA IV 751/142014-09-14 → 2014-09-18
    Cancel this msg 181600Z sep 14
    Puerto Rico-northwest Coast
  5. NAVAREA IV 722/142014-09-06 → 2014-09-08
    Puerto Rico-northwest Coast
  6. NAVAREA IV 718/142014-09-05 → 2014-09-05
    Puerto Rico-northwest Coast
  7. HYDROLANT 2062/142014-08-28 → 2015-01-10
    Cancel HYDROLANT 1889/14
    Shetland Islands
  8. HYDROLANT 1966/142014-08-17 → 2014-08-18
    Mrcc shetland mf dsc and r/t services at collafirth hill 60-32N 001-23W off air
    Shetland Islands · Radio Services
  9. NAVAREA IV 623/142014-08-08 → 2014-08-13
    Cancel this msg 131800Z aug 14
    Florida-south Coast
  10. HYDROLANT 1889/142014-08-06 → 2014-08-28
    Cancel HYDROLANT 1732/14
    Shetland Islands
  11. NAVAREA IV 595/142014-07-29 → 2014-08-02
    Puerto Rico-northwest Coast
  12. HYDROLANT 1791/142014-07-24 → 2014-07-24
    Shetland Islands
  13. NAVAREA IV 544/142014-07-17 → 2014-07-18
    French Guiana
    Western North Atlantic
  14. HYDROLANT 1732/142014-07-16 → 2014-08-06
    Shetland Islands
  15. HYDROLANT 1670/142014-07-09 → 2014-07-10
    Mrcc shetland mf r/t and dsc services at collafirth hill 60-32N 001-24W off air
    Shetland Islands · Radio Services
  16. NAVAREA IV 504/142014-07-03 → 2014-07-08
    Cancel this msg 081530Z jul 14
    Puerto Rico-northwest Coast
  17. HYDROLANT 1584/142014-06-27 → 2014-08-29
    NAVTEX stations unreliable: a. sao miguel 37-48.5N 025-33.2W
    Eastern North Atlantic · Azores · Madreira · NAVTEX
  18. HYDROLANT 1559/142014-06-26 → 2014-12-21
    Cancel this msg 21 dec 14
    Brazil-north Coast
  19. HYDROLANT 1558/142014-06-26 → 2014-12-21
    Cancel this msg 21 dec 14
    Brazil-north Coast
  20. HYDROLANT 1557/142014-06-26 → 2014-12-21
    Cancel this msg 21 dec 14
    Brazil-north Coast
  21. HYDROLANT 1548/142014-06-24 → 2014-06-27
    NAVTEX station porto santo 33-05.7N 016-20.4W unreliable
    Eastern North Atlantic · Madeira · NAVTEX
  22. HYDROLANT 1495/142014-06-16 → 2014-06-26
    Morocco
    Eastern North Atlantic
  23. NAVAREA IV 407/142014-06-03 → 2016-07-04
    One mile berth requested
    Western North Atlantic
  24. HYDROLANT 1382/142014-06-02 → 2014-12-31
    French Guiana
    North Atlantic
  25. HYDROLANT 1290/142014-05-22 → 2014-05-23
    Mrcc shetland mf r/t and dsc services at collafirth hill 60-32N 001-23W inoperative
    Shetland Islands · Radio Services
  26. NAVAREA IV 376/142014-05-22 → 2014-05-27
    Cancel this msg 272200Z may 14
    Florida-south Coast
  27. NAVAREA IV 349/142014-05-13 → 2014-05-17
    Puerto Rico-northwest Coast
  28. NAVAREA IV 343/142014-05-11 → 2014-05-14
    Cancel NAVAREA IV 340/14(11)
    Puerto Rico-northwest Coast
  29. NAVAREA IV 335/142014-05-09 → 2015-09-13
    Western North Atlantic
  30. NAVAREA IV 324/142014-05-07 → 2014-05-07
    Puerto Rico-northwest Coast
  31. NAVAREA IV 288/142014-04-24 → 2014-04-24
    Puerto Rico-northwest Coast
  32. NAVAREA IV 276/142014-04-19 → 2014-05-04
    One mile berth requested
    Western North Atlantic · Puerto Rico
  33. HYDROLANT 1040/142014-04-18 → 2014-04-18
    Shetland Islands
  34. HYDROLANT 1039/142014-04-18 → 2014-04-18
    Roca control 38-41.5N 009-17.9W off air until 180800Z apr
    Eastern North Atlantic · Portugal · Radio Services
  35. HYDROLANT 935/142014-04-06 → 2014-04-07
    Mrcc shetland mf r/t and dsc services at collafirth hill 60-32N 001-23W unreliable
    Shetland Islands · Radio Services
  36. HYDROLANT 897/142014-04-02 → 2014-08-02
    Morocco
    Eastern North Atlantic
  37. HYDROLANT 886/142014-04-01 → 2015-04-02
    Shetland Islands
    Eastern North Atlantic
  38. HYDROLANT 851/142014-03-28 → 2014-04-10
    GPS satellite system
    Scotland-north Coast · North Minch
  39. HYDROLANT 825/142014-03-23 → 2014-03-24
    Shetland Islands
  40. HYDROLANT 812/142014-03-21 → 2014-03-22
    Shetland Islands
  41. HYDROLANT 770/142014-03-17 → 2014-08-02
    Morocco
    Eastern North Atlantic
  42. HYDROLANT 761/142014-03-16 → 2014-06-24
    NAVTEX stations unreliable: 1. sao miguel 37-48.5N 025-33.2W
    Eastern North Atlantic · Azores · Madeira · NAVTEX
  43. NAVAREA IV 182/142014-03-16 → 2014-03-18
    Cancel this msg 182200Z mar 14
    Western North Atlantic · Nova Scotia
  44. HYDROLANT 656/142014-03-04 → 2014-03-04
    Mrcc shetland mf r/t and dsc services at collafirth hill 60-32N 001-23W unreliable
    Shetland Islands · Radio Services
  45. NAVAREA IV 145/142014-02-26 → 2014-02-26
    Puerto Rico-northwest Coast
  46. HYDROLANT 595/142014-02-25 → 2014-03-01
    NAVTEX station porto santo 33-05.7N 016-20.4W off air until 28 feb
    Eastern North Atlantic · Madeira · NAVTEX
  47. HYDROLANT 519/142014-02-20 → 2014-03-19
    Senegal
    Eastern North Atlantic
  48. NAVAREA IV 90/142014-02-06 → 2014-02-11
    Cancel this msg 111900Z feb 14
    Florida-south Coast
  49. NAVAREA IV 78/142014-02-01 → 2014-02-04
    Cancel this msg 041600Z feb 14
    Puerto Rico-northwest Coast
  50. HYDROLANT 283/142014-01-30 → 2014-02-01
    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 15 · seahazards