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 2011/212021-08-02 → 2021-09-13
    Pointe d'oukacha light 33-36.9N 007-33.8W unlit
    Eastern North Atlantic · Morocco
  2. HYDROLANT 1952/212021-07-27 → 2022-01-23
    Bailique light 00-59.4N 049-56.8W unlit until 22 jan 22
    Western North Atlantic · Brazil-north Coast
  3. NAVAREA IV 620/212021-07-21 → 2021-09-14
    NAVTEX station portsmouth (n) 36-43.7N 076-00.6W inoperative
    Western North Atlantic · Virginia
  4. NAVAREA IV 561/212021-07-03 → 2021-07-05
    Uscg remote communication facility miami (a) 25-37.4N 080-23.4W NAVTEX and hf dsc services unreliable
    Western North Atlantic · Florida
  5. NAVAREA IV 558/212021-07-03 → 2021-07-03
    NAVTEX station miami (a) 25-37.4N 080-23.4W unreliable
    Western North Atlantic · Florida
  6. HYDROLANT 1742/212021-07-02 → 2021-07-28
    El hank light 33-36.6N 007-39.3W unlit
    Eastern North Atlantic · Morocco
  7. HYDROLANT 1724/212021-06-30 → 2021-07-02
    El hank light 33-36.6N 007-39.3W unreliable
    Eastern North Atlantic · Morocco
  8. HYDROLANT 1642/212021-06-20 → 2021-06-23
    El hank light 33-36.6N 007-39.3W unlit
    Eastern North Atlantic · Morocco
  9. NAVAREA IV 481/212021-06-08 → 2021-06-09
    Mf/hf broadcast services unreliable at uscg remote communication facilities: a. boston (f) 41-42.8N 070-30.3W
  10. HYDROLANT 1539/212021-06-08 → 2021-06-10
    RACON at sule skerry light 59-05.1N 004-24.5W unreliable
    Eastern North Atlantic · Scotland
  11. HYDROLANT 1493/212021-06-03 → 2021-08-18
    Penedos de sao pedro e sao paulo light 00-55.2N 029-20.6W unlit
    Western South Atlantic
  12. NAVAREA IV 467/212021-06-03 → 2022-03-25
    Mole saint-nicolas nw point light, oc w 3 sec 17 meters 14 miles, established in 19-49.73N 073-25.08W
    Windward Passage · Haiti
  13. NAVAREA IV 452/212021-05-27 → 2022-03-25
    Light, fl (7) w 10 sec 22 meters 10 miles, established in 19-45.66N 071-46.76W
    Western North Atlantic · Dominican Republic
  14. NAVAREA IV 450/212021-05-27 → 2021-10-06
    Puerto liberatador light 19-42.6N 071-44.6W unlit
    Western North Atlantic · Dominican Republic
  15. NAVAREA IV 422/212021-05-19 → 2021-05-27
    Side bahia de monte cristi light 19-53.4N 071-40.1W unlit
    Western North Atlantic · Dominican Republic
  16. HYDROLANT 1349/212021-05-19 → 2021-05-26
    GPS jamming exercises 0900Z to 1500Z daily 19 thru 26 may in area within 55 miles of 57-35N 008-57W
    Eastern North Atlantic · Scotland
  17. NAVAREA IV 404/212021-05-14 → 2021-05-26
    Puerto liberatador light 19-42.6N 071-44.6W unlit
    Western North Atlantic · Dominican Republic
  18. NAVAREA IV 401/212021-05-13 → 2021-05-14
    Uscg remote communication facility miami (a) 25-37.4N 080-23.4W NAVTEX and hf services inoperative
    Western North Atlantic · Florida
  19. NAVAREA IV 385/212021-05-07 → 2021-05-10
    NAVTEX station miami (a) 25-37.4N 080-23.4W off air
    Western North Atlantic · Florida
  20. HYDROLANT 1239/212021-05-05 → 2021-05-05
    NAVTEX station coruna (d) 43-22.03N 008-27.13W off air
    Eastern North Atlantic · Spain
  21. HYDROLANT 1228/212021-05-04 → 2021-05-07
    RACON at sule skerry light 59-05.1N 004-24.5W unreliable
    Eastern North Atlantic · Scotland
  22. HYDROLANT 1131/212021-04-23 → 2021-05-12
    Sidi ifni light 29-22.5N 010-10.7W unlit
    Eastern North Atlantic · Morocco
  23. HYDROLANT 1068/212021-04-19 → 2021-04-23
    GPS jamming exercises 0700Z to 1700Z daily 19 thru 23 apr in areas within: a. 25 miles of 57-19N 007-22W
    Eastern North Atlantic · Sea of the Hebrides · Little Minch · Scotland
  24. NAVAREA IV 306/212021-04-15 → 2024-04-19
    Demerara entrance buoy 06-56.80N 058-03.43W unlit
    Western North Atlantic · Guyana
  25. HYDROLANT 927/212021-04-05 → 2021-04-07
    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
  26. NAVAREA IV 253/212021-03-23 → 2021-05-07
    French Guiana
    Western North Atlantic
  27. NAVAREA IV 214/212021-03-12 → 2021-03-13
    Uscg remote communication facility miami (a) 25-37.4N 080-23.4W hf and dsc services unreliable
    Western North Atlantic · Florida
  28. NAVAREA IV 208/212021-03-09 → 2021-03-13
    NAVTEX station charleston (e) 32-50.7N 079-57.0W unreliable
    Western North Atlantic · South Carolina
  29. HYDROLANT 631/212021-03-04 → 2021-03-05
    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
  30. HYDROLANT 628/212021-03-04 → 2021-04-02
    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
  31. HYDROLANT 381/212021-02-09 → 2021-02-12
    NAVTEX station coruna (d) 43-22N 008-27W unreliable
    Eastern North Atlantic · Spain
  32. HYDROLANT 372/212021-02-08 → 2021-08-08
    Cabo orange light 04-26.0N 051-32.2W unlit until 07 aug 21
    Western North Atlantic · Brazil-north Coast
  33. HYDROLANT 364/212021-02-08 → 2021-02-19
    GPS jamming exercises 1000Z to 1600Z daily 8 thru 13 and 15 thru 19 feb in area within 25 miles of 57-20.7N…
    Eastern North Atlantic · Little Minch · Scotland
  34. HYDROLANT 314/212021-02-03 → 2021-02-06
    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
  35. HYDROLANT 307/212021-02-02 → 2021-02-03
    Cgoc shetland mf dsc services at collafirth hill site 60-32.0N 001-23.5W off air
    Eastern North Atlantic · Shetland Islands
  36. HYDROLANT 232/212021-01-26 → 2021-02-05
    NAVTEX station coruna (d) 43-22N 008-27W off air
    Eastern North Atlantic · Spain
  37. HYDROLANT 222/212021-01-24 → 2021-01-28
    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
  38. HYDROLANT 192/212021-01-21 → 2021-07-19
    Ponta do ceu light 00-45-38N 050-07-02W unlit
    Western North Atlantic · Brazil-north Coast
  39. HYDROLANT 190/212021-01-21 → 2021-03-26
    Guara light 01-11.3N 049-54W unlit until 191700Z jul 21
    Western North Atlantic · Brazil-north Coast
  40. HYDROLANT 189/212021-01-21 → 2021-07-19
    Bailique light 00-59.4N 049-56.8W unlit until 191700Z jul 21
    Western North Atlantic · Brazil-north Coast
  41. HYDROLANT 165/212021-01-18 → 2021-01-26
    El hank light 33-36.6N 007-39.3W unlit
    Eastern North Atlantic · Morocco
  42. HYDROLANT 139/212021-01-14 → 2021-01-14
    Tory island light 55-16.4N 008-14.9W unreliable
    Eastern North Atlantic · Ireland
  43. HYDROLANT 134/212021-01-14 → 2021-01-18
    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
  44. HYDROLANT 84/212021-01-10 → 2021-01-12
    Rona light 59-07.3N 005-48.8W unreliable
    Eastern North Atlantic · Scotland
  45. HYDROLANT 65/212021-01-08 → 2021-01-13
    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
  46. NAVAREA IV 21/212021-01-07 → 2021-01-08
    All US NAVTEX stations inoperable until further notice: a. boston (f) 41-42.8N 070-30.3W
  47. HYDROLANT 4000/202020-12-29 → 2021-01-05
    Flannan isles light 58-17.3N 007-35.4W unlit
    Eastern North Atlantic · Scotland
  48. HYDROLANT 3978/202020-12-25 → 2020-12-29
    Flannan isles light 58-17.3N 007-35.4W unreliable
    Eastern North Atlantic · Scotland
  49. HYDROLANT 3904/202020-12-17 → 2020-12-18
    NAVTEX station coruna (d) 43-22N 008-27W off air
    Eastern North Atlantic · Spain
  50. HYDROLANT 3898/202020-12-17 → 2020-12-28
    Sidi bou afi light 33-15N 008-31W unlit
    Eastern North Atlantic · Morocco

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 6 · seahazards