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 375/112011-10-31 → 2011-11-05
    Nga chart 14001 (0 ed)
    Western North Atlantic · Nova Scotia
  2. HYDROLANT 1773/112011-10-27 → 2011-11-19
    Nga chart 24350 (2ND ed)
    Western North Atlantic · French Guiana
  3. NAVAREA IV 371/112011-10-27 → 2011-11-19
    Nga chart 24350 (2ND ed)
    Western North Atlantic · French Guiana
  4. HYDROLANT 1729/112011-10-20 → 2011-10-23
    Nga chart 35066 (1ST ed)
    Shetland Islands
  5. NAVAREA IV 360/112011-10-14 → 2011-10-29
    Nos chart 25640 (42ND ed)
    Puerto Rico-northwest Coast
  6. NAVAREA IV 352/112011-10-08 → 2011-10-10
    Nos chart 25640 (42ND ed)
    Puerto Rico-northwest Coast
  7. HYDROLANT 1647/112011-10-07 → 2011-10-09
    Mrcc shetland mf r/t and dsc services at collafirth hill 60-32N 001-23W off air
    Shetland Islands · Radio Services
  8. HYDROLANT 1630/112011-10-05 → 2011-10-07
    Mrcc shetland mf r/t and dsc services at collafirth hill 60-32N 001-23W unreliable
    Shetland Islands · Radio Services
  9. NAVAREA IV 348/112011-10-05 → 2011-10-05
    Nos chart 25640 (42ND ed)
    Puerto Rico-northwest Coast
  10. HYDROLANT 1625/112011-10-05 → 2011-10-06
    Nga chart 35210 (0 ed)
    Scotland-northwest Coast
  11. NAVAREA IV 346/112011-10-03 → 2011-10-08
    Nos chart 11420 (28TH ed)
    Florida-south Coast
  12. HYDROLANT 1616/112011-10-03 → 2011-10-11
    GPS satellite system
    Scotland-north Coast · North Minch
  13. NAVAREA IV 340/112011-09-29 → 2011-09-30
    Nos chart 11420 (28TH ed)
    Florida-south Coast
  14. HYDROLANT 1581/112011-09-28 → 2011-09-29
    Mrcc shetland mf rt off air at collafirth hill site 60-32N 001-23W
    Shetland Islands · Radio Services
  15. NAVAREA IV 337/112011-09-27 → 2011-09-29
    Nos chart 11420 (28TH ed)
    Florida-south Coast
  16. NAVAREA IV 334/112011-09-24 → 2011-09-27
    Nos chart 11420 (28TH ed)
    Florida-south Coast
  17. NAVAREA IV 329/112011-09-22 → 2011-09-23
    Nos chart 25640 (42ND ed)
    Puerto Rico-northwest Coast
  18. NAVAREA IV 322/112011-09-17 → 2011-09-19
    Nos chart 25640 (42ND ed)
    Puerto Rico-northwest Coast
  19. NAVAREA IV 317/112011-09-16 → 2011-09-17
    Nos chart 25640 (42ND ed)
    Puerto Rico-northwest Coast
  20. NAVAREA IV 315/112011-09-15 → 2011-09-16
    Nos chart 25640 (42ND ed)
    Puerto Rico-northwest Coast
  21. HYDROLANT 1464/112011-09-13 → 2011-09-13
    Mrcc shetland 59-54N 001-23W rt dsc off air
    Shetland Islands · Radio Services
  22. HYDROLANT 1378/112011-08-31 → 2011-08-31
    Nga chart 35066 (1ST ed)
    Shetland Islands
  23. NAVAREA IV 286/112011-08-28 → 2011-08-29
    Nos chart 25640 (42ND ed)
    Puerto Rico-northwest Coast
  24. NAVAREA IV 278/112011-08-26 → 2011-08-28
    Nos chart 25640 (42ND ed)
    Puerto Rico-northwest Coast
  25. NAVAREA IV 272/112011-08-23 → 2011-08-23
    Nos chart 25640 (42ND ed)
    Puerto Rico-northwest Coast
  26. NAVAREA IV 265/112011-08-17 → 2011-08-18
    Nga chart 25640 (42ND ed)
    Puerto Rico
  27. HYDROLANT 1274/112011-08-12 → 2011-08-12
    Nga chart 35071 (1ST ed)
    Shetland Islands
  28. HYDROLANT 1159/112011-07-21 → 2011-08-01
    Nga chart 35172 (2ND ed)
    Eastern North Atlantic · Shetland Islands
  29. HYDROLANT 1156/112011-07-20 → 2011-08-15
    Nga chart 51002 (7TH ed)
    North Atlantic · Azores
  30. NAVAREA IV 223/112011-07-12 → 2011-07-16
    Nos chart 25640 (42ND ed)
    Puerto Rico-northwest Coast
  31. HYDROLANT 1052/112011-06-26 → 2011-06-27
    Mrcc aberdeen 58-40.2N 003-22.5W rt and dsc off air
    Scotland-north Coast · Radio Services
  32. HYDROLANT 1048/112011-06-26 → 2011-06-26
    Nga chart 35071 (1ST ed)
    Shetland Islands
  33. HYDROLANT 1040/112011-06-24 → 2011-06-24
    Nga chart 35071 (1ST ed)
    Shetland Islands
  34. HYDROLANT 1004/112011-06-17 → 2011-06-17
    Nga chart 35210 (0 ed)
    Scotland-northwest Coast
  35. NAVAREA IV 196/112011-06-13 → 2011-06-14
    Nos chart 25640 (42ND ed)
    Puerto Rico-northwest Coast
  36. HYDROLANT 873/112011-05-25 → 2011-08-13
    Nga chart 24322 (6TH ed)
    Brazil-north Coast
  37. NAVAREA IV 169/112011-05-14 → 2011-05-17
    Nos chart 11420 (28TH ed)
    Florida-south Coast
  38. NAVAREA IV 154/112011-05-03 → 2011-05-04
    Nos chart 25640 (42ND ed)
    Puerto Rico-northwest Coast
  39. NAVAREA IV 152/112011-05-03 → 2011-05-03
    Nos chart 25640 (42ND ed)
    Puerto Rico-northwest Coast
  40. HYDROLANT 562/112011-04-03 → 2011-04-03
    Mrcc shetland mf rt and dsc off air at collafirth hill site 60-32N 001-23W
    Shetland Islands · Radio Services
  41. NAVAREA IV 97/112011-03-17 → 2011-03-17
    Nos chart 25640 (42ND ed)
    Puerto Rico-northwest Coast
  42. NAVAREA IV 70/112011-02-20 → 2011-02-24
    Nos chart 11420 (28TH ed)
    Florida-south Coast
  43. NAVAREA IV 65/112011-02-17 → 2011-02-19
    Nos chart 25640 (42ND ed)
    Puerto Rico-northwest Coast
  44. HYDROLANT 261/112011-02-12 → 2011-02-14
    Nga chart 35018 (1ST ed)
    Eastern North Atlantic · Wyville-thomson Ridge
  45. NAVAREA IV 41/112011-02-01 → 2011-02-03
    Nos chart 25640 (42ND ed)
    Puerto Rico-northwest Coast
  46. HYDROLANT 150/112011-01-24 → 2011-01-29
    Nga chart 35075 (2ND ed)
    Scotland-west Coast
  47. NAVAREA IV 26/112011-01-24 → 2011-01-25
    Nos chart 25640 (42ND ed)
    Puerto Rico-northwest Coast
  48. NAVAREA IV 24/112011-01-23 → 2011-01-24
    Nos chart 25640 (42ND ed)
    Puerto Rico-northwest Coast
  49. HYDROLANT 86/112011-01-16 → 2011-01-22
    Nga chart 35075 (2ND ed)
    Scotland-west Coast
  50. HYDROLANT 24/112011-01-06 → 2011-01-09
    Nga chart 35001 (2ND ed)
    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 19 · seahazards