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 · 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 1204/202020-12-13 → 2020-12-14
    NAVTEX station portsmouth (n) 36-43.7N 076-00.6W off air
    Western North Atlantic · Virginia
  2. HYDROLANT 3745/202020-12-01 → 2020-12-03
    Flannan isles light 58-17.3N 007-35.4W unreliable
    Eastern North Atlantic · Scotland-west Coast
  3. NAVAREA IV 1139/202020-11-24 → 2020-11-24
    Uscg remote communication facility portsmouth (n) 36-43.7N 076-00.6W communication services unreliable
    Western North Atlantic · Virginia
  4. HYDROLANT 3637/202020-11-23 → 2020-11-26
    Cape wrath light 58-37.5N 005-00.0W unreliable
    Eastern North Atlantic · Scotland
  5. HYDROLANT 3595/202020-11-19 → 2020-11-19
    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
  6. HYDROLANT 3594/202020-11-19 → 2020-11-24
    Sule skerry light 59-05.1N 004-24.5W unreliable
    Eastern North Atlantic · Scotland
  7. HYDROLANT 3553/202020-11-16 → 2020-11-17
    NAVTEX station coruna (d) 43-22.0N 008-27.1W off air
    Eastern North Atlantic · Spain
  8. HYDROLANT 3533/202020-11-13 → 2021-05-13
    Ilho do apeu light 00-54.7N 046-11.3W damaged and unlit
    Western South Atlantic · Brazil-north Coast
  9. NAVAREA IV 1084/202020-11-09 → 2021-11-30
    Brigand hill light 10-29.8N 061-04.0W unlit
    Western North Atlantic · Trinidad
  10. HYDROLANT 3241/202020-10-24 → 2020-10-27
    Sule skerry light 59-05.1N 004-24.5W unlit
    Eastern North Atlantic · Scotland
  11. HYDROLANT 3235/202020-10-24 → 2020-10-24
    Sule skerry light 59-05.1N 004-24.5W unlit
    Eastern North Atlantic · Scotland
  12. NAVAREA IV 1011/202020-10-19 → 2020-10-20
    Uscg remote communication facility boston (f) 41-42.8N 070-30.3W unreliable
    Western North Atlantic · Massachusetts
  13. HYDROLANT 3164/202020-10-18 → 2020-10-23
    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
  14. NAVAREA IV 996/202020-10-15 → 2020-10-15
    Uscg remote communication facility portsmouth (n) 36-43.7N 076-00.6W communication services unreliable
    Western North Atlantic · Virginia
  15. NAVAREA IV 988/202020-10-14 → 2020-10-24
    GPS unreliable 19 thru 23 oct in area within 49 miles of 39-07-38N 075-28-05W
    Western North Atlantic · Delaware
  16. HYDROLANT 3055/202020-10-08 → 2020-10-16
    Cape wrath light 58-37.5N 005-00.0W range temporarily reduced to 12 miles
    Eastern North Atlantic · Scotland
  17. NAVAREA IV 955/202020-10-06 → 2020-11-17
    GPS unreliable 11 oct thru 16 nov in area within 69 miles of 34-38-55N 078-17-54W
    Western North Atlantic · North Carolina
  18. HYDROLANT 2927/202020-09-25 → 2020-09-26
    Sule skerry light 59-05.1N 004-24.5W unreliable
    Eastern North Atlantic · Scotland
  19. NAVAREA IV 857/202020-09-11 → 2020-09-12
    Uscg remote communication facility boston (f) 41-42.8N 070-30.3W broadcast and communication services…
    Western North Atlantic · Massachusetts
  20. HYDROLANT 2642/202020-08-27 → 2020-10-08
    Cape wrath light 58-37.5N 005-00.0W range reduced to 12 miles
    Eastern North Atlantic · Scotland
  21. HYDROLANT 2626/202020-08-26 → 2020-08-26
    Muckle flugga light 60-51.3N 000-53.1W unreliable
    Eastern North Atlantic · Shetland Islands
  22. NAVAREA IV 794/202020-08-25 → 2020-08-27
    NAVTEX station miami (a) 25-37.4N 080-23.4W off air
    Western North Atlantic · Florida
  23. HYDROLANT 2601/202020-08-23 → 2020-08-24
    Cape wrath light 58-37-31N 004-59-57W unreliable
    Eastern North Atlantic · Scotland
  24. HYDROLANT 2578/202020-08-20 → 2020-08-22
    Cgoc shetland mf r/t and dsc services at collafirth hill site 60-32.0N 001-23.5W off air
    Eastern North Atlantic · Shetland Islands
  25. HYDROLANT 2491/202020-08-11 → 2021-02-08
    Cabo orange light 04-25-59N 051-32-12W unlit until 07 feb 21
    Western North Atlantic · Brazil-north Coast
  26. HYDROLANT 2437/202020-08-06 → 2020-08-07
    Sule skerry light 59-05.1N 004-24.5W unlit
    Eastern North Atlantic · Scotland
  27. NAVAREA IV 712/202020-08-06 → 2020-08-09
    NAVTEX station miami (a) 25-37.4N 080-23.4W inoperative
    Western North Atlantic · Florida
  28. HYDROLANT 2336/202020-07-24 → 2020-09-18
    Ponta do ceu light 00-45-38N 050-07-02W unlit until 201800Z jan 21
    Western North Atlantic · Brazil-north Coast
  29. HYDROLANT 2335/202020-07-24 → 2020-09-18
    Guara light 01-11-16N 049-53-58W unlit until 201800Z jan 21
    Western North Atlantic · Brazil-north Coast
  30. HYDROLANT 2312/202020-07-22 → 2020-08-01
    Cgoc shetland mf dsc at collafirth hill site 60-32.0N 001-23.5W unreliable
    Eastern North Atlantic · Shetland Islands
  31. NAVAREA IV 581/202020-07-02 → 2020-07-08
    NAVTEX station miami (a) 25-37.4N 080-23.4W off air
    Western North Atlantic · Florida
  32. HYDROLANT 2073/202020-06-27 → 2020-06-28
    Cgoc shetland collafirth hill site 60-32.0N 001-23.5W mf r/t and dsc unreliable
    Eastern North Atlantic · Shetland Islands
  33. HYDROLANT 2071/202020-06-27 → 2020-07-03
    Cgoc shetland dsc services at ben tongue 58-30.1N 004-23.7W off air
    Eastern North Atlantic · Scotland
  34. HYDROLANT 2070/202020-06-27 → 2020-06-27
    Cgoc shetland mf dsc at collafirth hill site 60-32.0N 001-23.5W unreliable
    Eastern North Atlantic · Shetland Islands
  35. NAVAREA IV 566/202020-06-27 → 2020-07-08
    Uscg remote communication facility miami(a) 25-37.4N 080-23.4W NAVTEX, hf and dsc unreliable
    Western North Atlantic · Florida
  36. HYDROLANT 2066/202020-06-27 → 2020-06-29
    Rona light 59-07.3N 005-48.8W unreliable
    Eastern North Atlantic · Scotland
  37. NAVAREA IV 563/202020-06-26 → 2020-06-30
    NAVTEX station charleston (e) 32-50.7N 079-57.0W inoperative
    Western North Atlantic · South Carolina
  38. NAVAREA IV 559/202020-06-26 → 2020-06-27
    Uscg remote communication facility miami(a) 25-37.4N 080-23.4W NAVTEX, hf and dsc off air
    Western North Atlantic · Florida
  39. NAVAREA IV 548/202020-06-23 → 2020-06-24
    NAVTEX station charleston (e) 32-50.7N 079-57.0W inoperative 241200Z to 241900Z jun
    Western North Atlantic · South Carolina
  40. NAVAREA IV 542/202020-06-22 → 2020-06-26
    Uscg remote communication facility miami (a) 25-37.4N 080-23.4W NAVTEX services off air
    Western North Atlantic · Florida
  41. NAVAREA IV 539/202020-06-21 → 2020-06-25
    Uscg remote communication facility boston (f) 41-42.8N 070-30.3W hf broadcast services unreliable
    Western North Atlantic · Massachusetts
  42. NAVAREA IV 528/202020-06-17 → 2020-06-17
    NAVTEX station charleston (e) 32-50.7N 079-57.0W inoperative
    Western North Atlantic · South Carolina
  43. NAVAREA IV 510/202020-06-13 → 2020-06-13
    NAVTEX, sitor and vobra inoperative at uscg remote communication facilities: a. boston (f) 41-42.8N 070-30.3W
  44. NAVAREA IV 507/202020-06-13 → 2020-06-13
    Weather fax unreliable at uscg remote communication facilities: a. boston (f) 41-42.8N 070-30.3W
  45. NAVAREA IV 466/202020-06-01 → 2020-06-22
    Uscg remote communication facility miami (a) 25-37.4N 080-23.4W hf and NAVTEX services off air
    Western North Atlantic · Florida
  46. NAVAREA IV 446/202020-05-27 → 2020-06-01
    Uscg remote communication facility miami (a) 25-37.4N 080-23.4W NAVTEX, hf, and dsc services off air
    Western North Atlantic · Florida
  47. NAVAREA IV 363/202020-05-01 → 2020-05-06
    NAVTEX station chesapeake (n) 36-43.7N 076-00.6W off air 060600Z to 060610Z may
    Western North Atlantic · Virginia
  48. HYDROLANT 1394/202020-04-22 → 2020-04-26
    Capo caccia light 40-33.6N 008-12.2W unlit until 25 apr
    Eastern North Atlantic · Portugal
  49. NAVAREA IV 341/202020-04-22 → 2020-04-23
    NAVTEX station boston (f) 41-42.8N 070-30.3W off air 231400Z to 231500Z apr
    Western North Atlantic · Massachusetts
  50. NAVAREA IV 336/202020-04-20 → 2020-04-21
    Uscg remote communication facility boston (f) 41-42.8N 070-30.3W hf radio and dsc off air
    Western North Atlantic · Massachusetts

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 7 · seahazards