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 1231/082008-07-26 → 2008-08-01
    Nga chart 35104 (2ND ed)
  2. HYDROLANT 1193/082008-07-17 → 2008-07-18
    Mf rt and dsc service off air 172230Z jul until further notice at stations: a. collafirth 60-31N 001-23W
  3. NAVAREA IV 272/082008-07-13 → 2008-07-16
    Nga chart 11484 (23RD ed)
  4. HYDROLANT 1158/082008-07-11 → 2008-07-13
    Nga chart 35160 (4TH ed)
  5. HYDROLANT 1123/082008-07-07 → 2009-02-24
    Nga chart 35075 (2ND ed)
  6. HYDROLANT 1051/082008-06-26 → 2008-06-28
    Nga chart 35057 (1ST ed)
  7. HYDROLANT 948/082008-06-07 → 2008-06-07
    Dsc stations inoperative: a. saxavord 60-50N 000-50W
  8. HYDROLANT 828/082008-05-15 → 2008-05-22
    Nga chart 35069 (1ST ed)
  9. HYDROLANT 820/082008-05-14 → 2008-05-14
    Mrcc shetland 60-32N 001-23W mf rt off air
  10. HYDROLANT 788/082008-05-09 → 2008-05-13
    Nga chart 35075 (2ND ed)
  11. HYDROLANT 786/082008-05-09 → 2008-05-09
    Mrcc shetland mf dsc stations off air: a. collafirth 60-31N 001-23W
  12. HYDROLANT 736/082008-04-30 → 2008-05-03
    Nga chart 35057 (1ST ed)
  13. HYDROLANT 729/082008-04-29 → 2008-04-30
    Nga chart 35057 (1ST ed)
  14. HYDROLANT 676/082008-04-20 → 2008-04-21
    GPS jamming exercises 210900Z to 212100Z apr in area bound by 56-47N 007-40W, 57-48N 008-35W, 58-10N 007-30W
  15. NAVAREA IV 149/082008-04-17 → 2008-09-13
    Nga chart 12300 (46TH ed)
  16. NAVAREA IV 141/082008-04-09 → 2008-04-09
    Nga chart 25700 (3RD ed)
  17. HYDROLANT 578/082008-04-07 → 2008-04-09
    Dsc station ben tongue 58-30N 004-24W off air
  18. HYDROLANT 441/082008-03-13 → 2008-04-19
    Nga chart 51160 (21ST ed)
  19. HYDROLANT 377/082008-02-29 → 2008-02-29
    Dsc station forsnaval 58-13N 007-00W inoperative
  20. HYDROLANT 344/082008-02-22 → 2008-02-25
    Nga chart 35160 (4TH ed)
  21. HYDROLANT 240/082008-02-03 → 2008-02-14
    Nga chart 35220 (10TH ed)
  22. HYDROLANT 232/082008-02-02 → 2008-02-05
    Nga chart 35011 (2ND ed)
  23. HYDROLANT 221/082008-02-01 → 2008-02-01
    Nga chart 35121 (1ST ed)
  24. HYDROLANT 49/082008-01-06 → 2008-01-09
    Nga chart 35160 (4TH ed)
  25. HYDROLANT 2103/072007-12-15 → 2007-12-18
    Nga chart 35011 (2ND ed)
  26. HYDROLANT 2044/072007-12-09 → 2007-12-10
    Nga chart 35011 (2ND ed)
  27. HYDROLANT 1917/072007-11-19 → 2007-11-21
    Nga chart 35160 (3RD ed)
  28. HYDROLANT 1916/072007-11-19 → 2007-11-26
    Nga chart 35011 (2ND ed)
  29. HYDROLANT 1824/072007-11-03 → 2007-12-22
    Nga chart 24020 (47TH ed)
  30. HYDROLANT 1588/072007-09-15 → 2007-10-03
    Nga chart 24020 (47TH ed)
  31. HYDROLANT 1186/072007-07-07 → 2007-07-08
    Nga chart 35134 (2ND ed)
  32. HYDROLANT 1091/072007-06-23 → 2008-02-09
    Nga chart 35220 (10TH ed)
  33. HYDROLANT 1079/072007-06-21 → 2007-06-22
    Nga chart 35022 (3RD ed)
  34. HYDROLANT 967/072007-06-06 → 2007-08-25
    Cap spartel light 35-47.5N 005-55.3W unlit
  35. HYDROLANT 839/072007-05-19 → 2007-05-19
    Flannan isles light 58-17.3N 007-35.4W unreliable
  36. HYDROLANT 770/072007-05-08 → 2007-05-09
    Flannan isles light 58-17.3N 007-35.4W unreliable
  37. HYDROLANT 540/072007-04-04 → 2007-04-18
    El hank light 33-36.7N 007-39.4W unlit
  38. HYDROLANT 440/072007-03-19 → 2007-03-26
    El hank light 33-36.7N 007-39.4W unlit
  39. HYDROLANT 439/072007-03-19 → 2007-03-28
    Tarfaya light 27-55.3N 012-56.3W unlit
  40. HYDROLANT 435/072007-03-18 → 2007-03-23
    Noup head light 59-19.9N 003-04.0W unreliable
  41. HYDROLANT 420/072007-03-17 → 2007-03-21
    Penedos de sao pedro e sao paulo light 00-55.2N 029-20.6W unlit
  42. HYDROLANT 412/072007-03-15 → 2007-04-25
    Mrcc aberdeen dunnet head 58-40N 003-22W mf dsc services inoperative
  43. HYDROLANT 21/072007-01-04 → 2007-01-05
    Rona light 59-07.3N 005-48.8W unreliable
  44. HYDROLANT 2279/062006-12-20 → 2007-02-08
    Sidi ifni light 29-23.0N 010-11.0W unlit
  45. HYDROLANT 2132/062006-11-28 → 2008-02-09
    Range at eeragh light 53-08.9N 009-51.4W changed to 18 miles
  46. HYDROLANT 2102/062006-11-21 → 2006-11-28
    Eeragh light 53-08.9N 009-51.4W range reduced to ten miles
  47. NAVAREA IV 287/062006-10-30 → 2006-10-31
    Kensington dgps station 33-28.86N 079-20.58W off air 311500Z to 311700Z oct
  48. HYDROLANT 1917/062006-10-18 → 2006-10-19
    Odas buoy established in 36-09.06N 008-02.81W
  49. HYDROLANT 1792/062006-10-02 → 2006-10-02
    Rona light 59-07.3N 005-48.8W unreliable
  50. HYDROLANT 1783/062006-09-30 → 2006-09-30
    Dsc station valentia 51-56.1N 010-19.7W NAVTEX and mf dsc off air

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 23 · seahazards