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 · 997 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 · 883 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 915/222022-03-30 → 2022-03-31
    Cgoc shetland mf dsc and r/t services at collafirth hill site 60-32.0N 001-23.5W off air
    Eastern North Atlantic · Shetland Islands
  2. NAVAREA IV 307/222022-03-28 → 2022-03-29
    Hf dsc unreliable until further notice at uscg remote communication facilities: a. boston (f) 41-42.8N…
  3. NAVAREA IV 297/222022-03-24 → 2022-04-02
    NAVTEX station miami (a) 25-37.4N 080-23.4W unreliable
    Western North Atlantic · Florida
  4. NAVAREA IV 288/222022-03-22 → 2022-03-23
    Uscg remote communication facility chesapeake (n) 36-43.7N 076-00.6W hf dsc off air
    Western North Atlantic · Virginia
  5. NAVAREA IV 242/222022-03-10 → 2022-03-10
    Broadcast and communication services unreliable at uscg remote communication facilities: a. boston (f)…
  6. NAVAREA IV 241/222022-03-09 → 2022-03-10
    Broadcast and communication services unreliable at uscg remote communication facilities: a. boston (f)…
  7. NAVAREA IV 240/222022-03-09 → 2022-03-10
    Uscg remote communication facility boston (f) 41-42.8N 070-30.3W broadcast and communication services…
    Western North Atlantic · Massachusetts
  8. HYDROLANT 544/222022-02-23 → 2022-03-01
    Haskier island light 57-42.0N 007-41.3W unreliable
    Eastern North Atlantic · Scotland
  9. HYDROLANT 470/222022-02-17 → 2022-02-20
    Flannan isles light 58-17.3N 007-35.4W unreliable
    Eastern North Atlantic · Scotland
  10. NAVAREA IV 136/222022-02-07 → 2022-02-15
    Brigand hill light 10-29.8N 061-04.0W unlit
    Western North Atlantic · Trinidad
  11. NAVAREA IV 109/222022-01-31 → 2022-02-02
    Uscg remote communication facility boston (f) 41-42.8N 070-30.3W hf services unreliable
    Western North Atlantic · Massachusetts
  12. HYDROLANT 304/222022-01-31 → 2022-01-31
    Haskier island light 57-42.0N 007-41.3W unreliable
    Eastern North Atlantic · Scotland
  13. NAVAREA IV 95/222022-01-29 → 2022-01-30
    Uscg remote communication facility portsmouth (n) 36-43.7N 076-00.6W hf services unreliable
    Western North Atlantic · Virginia
  14. NAVAREA IV 94/222022-01-29 → 2022-02-03
    Uscg remote communication facility boston (f) 41-42.8N 070-30.3W hf services unreliable
    Western North Atlantic · Massachusetts
  15. HYDROLANT 282/222022-01-29 → 2022-01-31
    Foula island south ness light 60-06.8N 002-03.8W unreliable
    Eastern North Atlantic · Shetland Islands
  16. HYDROLANT 227/222022-01-24 → 2022-01-27
    Monach islands light 57-31.6N 007-41.6W unreliable
    Eastern North Atlantic · Scotland
  17. NAVAREA IV 78/222022-01-24 → 2022-01-25
    NAVTEX station portsmouth (n) 36-43.7N 076-00.6W off air
    Western North Atlantic · Virginia
  18. NAVAREA IV 76/222022-01-24 → 2022-01-25
    NAVTEX station boston (f) 41-42.8N 070-30.3W off air
    Western North Atlantic · Massachusetts
  19. HYDROLANT 209/222022-01-22 → 2022-03-30
    West cardinal buoy 13-14.89N 016-58.97W off station
    Eastern North Atlantic · The Gambia
  20. HYDROLANT 168/222022-01-18 → 2022-01-21
    Haskier island light 57-42.0N 007-41.3W unreliable
    Eastern North Atlantic · Scotland
  21. NAVAREA IV 54/222022-01-18 → 2022-01-21
    NAVTEX station portsmouth (n) 36-43.7N 076-00.6W unreliable
    Western North Atlantic · Virginia
  22. HYDROLANT 154/222022-01-17 → 2022-06-02
    Odas buoy brittany 47-28.8N 008-25.8W unlit
    Eastern North Atlantic
  23. NAVAREA IV 32/222022-01-12 → 2022-01-14
    United states of america
    Atlantic Ocean · Gulf of Mexico
  24. HYDROLANT 81/222022-01-08 → 2022-01-14
    Muckle flugga light 60-51.3N 000-53.1W unreliable
    Eastern North Atlantic · Shetland Islands
  25. HYDROLANT 74/222022-01-08 → 2022-01-08
    NAVTEX station sao miguel (f) 37-48.5N 025-33.2W off air
    North Atlantic · Azores
  26. HYDROLANT 50/222022-01-05 → 2022-01-08
    RACON at haskeir island light 57-42.0N 007-41.3W unreliable
    Eastern North Atlantic · Scotland
  27. HYDROLANT 5/222022-01-01 → 2022-01-09
    Rona light 59-07.3N 005-48.8W unreliable
    Eastern North Atlantic · Scotland
  28. NAVAREA IV 1183/212021-12-31 → 2022-01-24
    Uscg remote communication facility chesapeake (n) 36-43.7N 076-00.6W hf dsc transmit capability unreliable
    Western North Atlantic · Virginia
  29. HYDROLANT 3202/212021-12-30 → 2021-12-31
    Rona light 59-07.3N 005-48.8W unreliable
    Eastern North Atlantic · Scotland
  30. HYDROLANT 3027/212021-12-10 → 2021-12-15
    Cgoc stornoway mf dsc and r/t services at ness site 58-28.0N 006-18.6W off air
    Eastern North Atlantic · Scotland
  31. NAVAREA IV 1091/212021-12-04 → 2021-12-08
    NAVTEX, sitor, vobra, weather fax and hf dsc services unreliable 061300Z to 081300Z dec at uscg remote…
  32. HYDROLANT 2835/212021-11-17 → 2022-01-16
    Cap rhir light 30-38.0N 009-52.9W unlit
    Eastern North Atlantic · Morocco
  33. HYDROLANT 2827/212021-11-16 → 2021-12-24
    Cap d'aglou light 29-40.0N 009-58.0W unlit
    Eastern North Atlantic · Morocco
  34. HYDROLANT 2804/212021-11-14 → 2022-01-16
    Sidi bou afi light 33-15N 008-31W unlit
    Eastern North Atlantic · Morocco
  35. NAVAREA IV 1006/212021-11-05 → 2021-11-06
    Uscg remote communication facility portsmouth (n) 36-43.7N 076-00.6W NAVTEX, vobra and hf dsc transmit…
    Western North Atlantic · Virginia
  36. NAVAREA IV 998/212021-11-02 → 2021-11-04
    Uscg remote communication facility boston (f) 41-42.8N 070-30.3W mf and hf services unreliable
    Western North Atlantic · Massachusetts
  37. NAVAREA IV 986/212021-10-30 → 2021-11-02
    Mf and hf services unreliable at uscg remote communication facilities: a. boston (f) 41-42.8N 070-30.3W
  38. NAVAREA IV 974/212021-10-27 → 2021-10-29
    Uscg remote communication facility boston (f) 41-42.8N 070-30.3W hf and mf services unreliable
    Western North Atlantic · Massachusetts
  39. HYDROLANT 2619/212021-10-24 → 2021-12-05
    Sidi ifini light 29-22.5N 010-10.7W unlit
    Eastern North Atlantic · Morocco
  40. NAVAREA IV 953/212021-10-20 → 2021-10-26
    All broadcast services unreliable at uscg remote communication facilities: a. boston (f) 41-42.8N 070-30.3W
  41. HYDROLANT 2547/212021-10-16 → 2021-11-16
    El hank light 33-36.6N 007-39.3W unlit
    Eastern North Atlantic · Morocco
  42. NAVAREA IV 921/212021-10-11 → 2021-10-16
    All broadcast services unreliable at uscg remote communication facilities: a. boston (f) 41-42.8N 070-30.3W
  43. NAVAREA IV 909/212021-10-07 → 2021-10-07
    Mf and hf services unreliable at uscg remote communication facilities: a. boston (f) 41-42.8N 070-30.3W
  44. HYDROLANT 2461/212021-10-03 → 2021-10-06
    Buoy temporarily established in 47-33N 010-02W
    Eastern North Atlantic
  45. NAVAREA IV 884/212021-09-30 → 2021-10-05
    All broadcast services unreliable at uscg remote communication facilities: a. boston (f) 41-42.8N 070-30.3W
  46. NAVAREA IV 883/212021-09-30 → 2021-12-30
    NAVTEX station puerto rico (r) 18-28.0N 067-04.3W off air
    Western North Atlantic · Caribbean Sea · Puerto Rico
  47. NAVAREA IV 851/212021-09-17 → 2021-10-06
    Galera point light 10-50-06N 060-54-30W unlit
    Eastern Caribbean Sea · Trinidad
  48. NAVAREA IV 792/212021-09-02 → 2021-09-03
    NAVTEX station miami (a) 25-37.4N 080-23.4W inoperative
    Western North Atlantic · Florida
  49. HYDROLANT 2083/212021-08-10 → 2022-04-13
    Cabo orange light 04-26.0N 051-32.2W unlit
    Western North Atlantic · Brazil-north Coast
  50. NAVAREA IV 667/212021-08-05 → 2021-08-06
    NAVTEX station miami (a) 25-37.4N 080-23.4W off air
    Western North Atlantic · Florida

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 5 · seahazards