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 1336/122012-06-20 → 2012-06-20
    Mrcc shetland mf dsc and r/t services at collafirth hill 60-32N 001-23W off air
    Shetland Islands · Radio Services
  2. HYDROLANT 1181/122012-06-03 → 2012-06-04
    Orkney Islands
    Scotland-north Coast
  3. HYDROLANT 1142/122012-05-28 → 2012-06-01
    Shetland Islands
  4. NAVAREA IV 263/122012-05-22 → 2012-05-22
    Puerto Rico-northwest Coast
  5. HYDROLANT 1027/122012-05-14 → 2012-09-29
    Morocco
    Eastern North Atlantic
  6. HYDROLANT 982/122012-05-09 → 2012-05-11
    Orkney Islands
    Scotland-north Coast
  7. HYDROLANT 962/122012-05-06 → 2012-05-07
    Orkney Islands
    Scotland-north Coast
  8. NAVAREA IV 225/122012-05-05 → 2012-05-08
    Cancel this msg 081600Z may
    Florida-south Coast
  9. HYDROLANT 915/122012-04-29 → 2012-07-20
    Brazil-north Coast
  10. HYDROLANT 839/122012-04-16 → 2012-04-27
    GPS satellite system
    Scotland-north Coast · North Minch
  11. NAVAREA IV 175/122012-04-13 → 2012-04-26
    Puerto Rico-northwest Coast
  12. HYDROLANT 795/122012-04-11 → 2012-04-11
    Mrcc stornoway dsc services at forsnaval 58-13N 007-00W off air
    Scotland-west Coast · Radio Services
  13. HYDROLANT 782/122012-04-09 → 2012-04-10
    Scotland-north Coast
  14. HYDROLANT 727/122012-04-01 → 2012-04-02
    Orkney Islands
    Scotland-north Coast
  15. NAVAREA IV 103/122012-03-09 → 2012-03-26
    French Guiana
    Western North Atlantic
  16. HYDROLANT 553/122012-03-09 → 2012-03-26
    French Guiana
    Western North Atlantic
  17. HYDROLANT 530/122012-03-08 → 2012-03-08
    Orkney Islands
    Scotland-north Coast
  18. HYDROLANT 506/122012-03-06 → 2012-03-07
    Mrcc shetland mf dsc and r/t services at collafirth hill 60-32N 001-23W unreliable
    Shetland Islands · Radio Services
  19. HYDROLANT 505/122012-03-06 → 2012-03-06
    Mrcc shetland mf dsc and r/t services at collafirth hill 60-32N 001-23W and lerwick 60-09N 001-08W off air
    Shetland Islands · Radio Services
  20. HYDROLANT 503/122012-03-05 → 2012-03-06
    Mrcc shetland mf dsc and r/t services at collafirth hill 60-32N 001-23W off air
    Shetland Islands · Radio Services
  21. NAVAREA IV 66/122012-02-21 → 2012-02-24
    Puerto Rico-northwest Coast
  22. NAVAREA IV 47/122012-02-11 → 2012-02-14
    Cancel this msg 141700Z feb
    Florida-south Coast
  23. NAVAREA IV 44/122012-02-10 → 2012-02-11
    Puerto Rico-northwest Coast
  24. HYDROLANT 331/122012-02-09 → 2012-02-09
    Mrcc finisterre 42-42N 008-59W off air
    Spain-west Coast · Radio Services
  25. NAVAREA IV 37/122012-02-07 → 2012-02-09
    Puerto Rico-northwest Coast
  26. NAVAREA IV 29/122012-02-04 → 2012-02-07
    Cancel this msg 071800Z feb
    Puerto Rico-northwest Coast
  27. HYDROLANT 278/122012-02-03 → 2012-02-03
    Orkney Islands
    Scotland-north Coast
  28. HYDROLANT 246/122012-01-30 → 2012-01-31
    Outer Hebrides
    Eastern North Atlantic
  29. NAVAREA IV 19/122012-01-26 → 2012-01-26
    Puerto Rico-northwest Coast
  30. NAVAREA IV 18/122012-01-22 → 2012-01-25
    Cancel this msg 251700Z jan
    Puerto Rico-northwest Coast
  31. NAVAREA IV 11/122012-01-17 → 2012-01-18
    Puerto Rico-northwest Coast
  32. HYDROLANT 101/122012-01-14 → 2012-09-08
    Brazil-north Coast
  33. HYDROLANT 36/122012-01-05 → 2012-01-05
    Mrcc shetland mf r/t and dsc services at collafirth hill 60-32N 001-23W off air
    Shetland Islands · Radio Services
  34. HYDROLANT 2306/112011-12-31 → 2012-01-10
    Scotland-north Coast
  35. HYDROLANT 2266/112011-12-29 → 2012-02-13
    Bullia skerry light 60-06.7N 001-21.6W unlit
    Shetland Islands
  36. HYDROLANT 2262/112011-12-27 → 2011-12-30
    Mrcc shetland mf r/t services at collarfirth 60-32N 001-23W off air
    Shetland Islands · Radio Services
  37. HYDROLANT 2252/112011-12-26 → 2011-12-30
    Orkney Islands
    Scotland-north Coast
  38. HYDROLANT 2251/112011-12-26 → 2011-12-28
    Shetland Islands
    Scotland
  39. HYDROLANT 2246/112011-12-25 → 2011-12-27
    Mrcc shetland mf r/t and dsc services at collarfirth 60-32N 001-23W off air
    Shetland Islands · Radio Services
  40. HYDROLANT 2237/112011-12-24 → 2011-12-25
    Mrcc shetland mf r/t at collarfirth 60-32N 001-23W off air
    Shetland Islands · Radio Services
  41. HYDROLANT 2230/112011-12-24 → 2011-12-24
    Mrcc shetland mf r/t at collarfirth 60-32N 001-23W unreliable
    Shetland Islands · Radio Services
  42. HYDROLANT 2207/112011-12-20 → 2011-12-21
    Nga chart 35001 (2ND ed)
    Scotland · Orkney Islands
  43. NAVAREA IV 432/112011-12-19 → 2011-12-22
    Nos chart 25640 (44TH ed)
    Puerto Rico-northwest Coast
  44. HYDROLANT 2185/112011-12-17 → 2011-12-19
    Nga chart 35001 (2ND ed)
    Scotland · Orkney Islands
  45. HYDROLANT 2132/112011-12-11 → 2011-12-17
    Nga chart 35001 (1ST ed)
    Scotland · Orkney Islands
  46. HYDROLANT 2087/112011-12-08 → 2011-12-11
    Nga chart 35001 (1ST ed)
    Scotland · Orkney Islands
  47. HYDROLANT 2086/112011-12-08 → 2011-12-09
    Mrcc shetland 59-54N 001-23W rt dsc unreliable
    Shetland Islands · Radio Services
  48. NAVAREA IV 397/112011-11-15 → 2011-11-17
    Nos chart 25640 (42ND ed)
    Puerto Rico-northwest Coast
  49. NAVAREA IV 396/112011-11-15 → 2011-11-18
    Nos chart 11420 (28TH ed)
    Florida-south Coast
  50. HYDROLANT 1817/112011-11-02 → 2011-11-02
    Mrcc shetland mf r/t and dsc services at collafirth hill 60-32N 001-23W off air until 021700Z nov
    Shetland Islands · Radio Services

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 18 · seahazards