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 · 1,632 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 823/002000-03-05 → 2000-03-10
    Gasker light 57-59N 007-17W unreliable
  2. HYDROLANT 512/002000-02-10 → 2000-04-14
    Sidi bou afi light 33-15N 008-31W unlit
  3. HYDROLANT 307/002000-01-27 → 2000-02-01
    RACON at sule skerry light 59-05N 004-24W inoperative
  4. HYDROLANT 103/002000-01-11 → 2000-01-11
    Flannan isles light 58-17N 007-35W unreliable
  5. NAVAREA IV 11/002000-01-11 → 2000-01-13
    Odas buoy 41001 (34-40-43N 072-38-12W) off station
  6. HYDROLANT 58/002000-01-06 → 2000-01-07
    Gasker light 57-59N 007-17W unreliable
  7. HYDROLANT 29/002000-01-03 → 2000-01-04
    Gasker light 57-59N 007-17W unreliable
  8. HYDROLANT 2848/991999-12-29 → 2000-01-16
    Bullockmore buoy 54-34N 008-30W unlit
  9. HYDROLANT 2801/991999-12-25 → 1999-12-26
    Monarch islands light 57-32N 007-42W unreliable
  10. HYDROLANT 2657/991999-12-08 → 1999-12-09
    Monach isles light 57-32N 007-42W unreliable
  11. HYDROLANT 2656/991999-12-08 → 1999-12-09
    Gasker light 57-59N 007-17W unreliable
  12. HYDROLANT 2402/991999-11-10 → 1999-11-10
    Eagle island light 54-17N 010-06W unlit until 101800Z nov
  13. NAVAREA IV 376/991999-11-08 → 1999-11-19
    RACON at tybee range t buoy 31-57.9N 080-43.2W inoperative
  14. HYDROLANT 2373/991999-11-06 → 1999-12-24
    RACON at AM-1 lightship 01-34.12N 049-01.35W inoperative
  15. NAVAREA IV 364/991999-10-29 → 1999-10-29
    Savannah dgps station 32-08.4N 081-42.0W off air
  16. HYDROLANT 2220/991999-10-16 → 1999-10-17
    Gasker light 57-59N 007-17W unreliable
  17. HYDROLANT 2207/991999-10-15 → 1999-10-15
    Cape wrath light 58-38N 005-00W unreliable
  18. HYDROLANT 2188/991999-10-13 → 1999-10-13
    Dgps station at tory island light 55-16N 008-15W unreliable 130800Z to 131600Z oct
  19. HYDROLANT 2122/991999-10-06 → 1999-10-18
    Punta jandia light 28-03.8N 014-30.3W unreliable
  20. NAVAREA IV 327/991999-09-17 → 1999-10-01
    St augustine inlet buoy 29-54.9N 081-15.3W unlit
  21. HYDROLANT 1894/991999-09-06 → 1999-09-06
    Gasker light 57-59N 007-17W unreliable
  22. HYDROLANT 1893/991999-09-06 → 1999-09-06
    Monach isles light 57-32N 007-42W unreliable
  23. NAVAREA IV 303/991999-08-31 → 1999-10-15
    TMB-3 buoy 23-45.2N 076-55.0W unlit
  24. HYDROLANT 1797/991999-08-26 → 1999-10-20
    Dgps beacon at canivete radiobeacon 00-30.6N 050-24.9W inoperative
  25. HYDROLANT 1785/991999-08-25 → 1999-08-26
    Radiobeacon at cabo silleiro light 42-06.2N 008-53.8W inoperative
  26. HYDROLANT 1729/991999-08-18 → 1999-08-20
    Bull rock light 51-36N 010-18W unlit
  27. HYDROLANT 1717/991999-08-16 → 1999-08-18
    Bull rock light 51-36N 010-18W unreliable
  28. HYDROLANT 1691/991999-08-12 → 1999-08-14
    Gasker light 57-59N 007-17W unreliable
  29. HYDROLANT 1682/991999-08-11 → 1999-08-12
    Monach isles light 57-32N 007-42W unreliable
  30. HYDROLANT 1631/991999-08-06 → 1999-08-06
    RACON at sule skerry light 59-05N 004-24W inoperative until 061700Z aug
  31. HYDROLANT 1614/991999-08-03 → 1999-08-06
    Monach isles light 57-32N 007-42W unreliable
  32. HYDROLANT 1613/991999-08-03 → 1999-08-06
    Gasker light 57-59N 007-17W unreliable
  33. HYDROLANT 1485/991999-07-16 → 1999-08-06
    Slyne head light 53-24N 010-14W unreliable
  34. HYDROLANT 1475/991999-07-15 → 1999-08-09
    Bagi stack light 60-44N 001-07W range temporarily reduced to seven miles
  35. HYDROLANT 1470/991999-07-15 → 1999-08-06
    Cable buoy, yellow, fl y 5 sec, ra ref, temporarily established in 27-46.0N 016-52.5W
  36. HYDROLANT 1455/991999-07-13 → 1999-07-14
    Rona light 59-07N 005-49W unreliable
  37. HYDROLANT 1440/991999-07-12 → 1999-08-03
    Black rock light 54-04N 010-19W range temporarily reduced to 11 miles
  38. HYDROLANT 1434/991999-07-11 → 1999-08-06
    Cable buoy, yellow, fl y 5 sec, temporarily established in 25-27N 017-37W
  39. HYDROLANT 1233/991999-06-13 → 1999-06-14
    Loop head light 52-34N 009-56W unlit
  40. HYDROLANT 1231/991999-06-13 → 2000-02-01
    Foula light 60-07N 002-04W range temporarily reduced to nine miles
  41. HYDROLANT 1172/991999-06-07 → 2000-02-11
    Sidi bou afi light 33-15N 008-31W unlit
  42. HYDROLANT 1102/991999-05-30 → 1999-05-31
    Abandoned fishing nets marked by unlit buoys vicinity 51-45N 011-23W
  43. HYDROLANT 1066/991999-05-25 → 1999-05-26
    Cape wrath light 58-38N 005-00W unreliable
  44. HYDROLANT 962/991999-05-12 → 1999-05-16
    Conchas light 25-32.3N 048-17.4W unreliable
  45. HYDROLANT 883/991999-05-02 → 1999-05-07
    Ballybunnion buoy 52-33N 009-47W unlit
  46. HYDROLANT 874/991999-05-01 → 1999-05-01
    Canivete radiobeacon and dgps service 00-30.6N 050-24.9W inoperative 011500Z to 011900Z may
  47. HYDROLANT 844/991999-04-28 → 1999-04-28
    Dgps service at loop head light 52-34N 009-56W unreliable 280900Z to 281600Z apr
  48. HYDROLANT 843/991999-04-28 → 1999-04-28
    Dgps service at tory island light 55-16N 008-15W unreliable 280900Z to 281600Z apr
  49. HYDROLANT 832/991999-04-27 → 1999-04-27
    Dgps service at butt of lewis light 58-31N 006-16W unreliable 270900Z to 271300Z apr
  50. HYDROLANT 825/991999-04-26 → 2000-07-28
    Noup head light 59-20N 003-04W range temporarily reduced to nine miles

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 29 · seahazards