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 · 883 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 1113/232023-05-21 → 2023-05-21
    Collafirth hill mf r/t and dsc services in 60-32.00N 001-23.50W off air
    Eastern North Atlantic · Shetland Islands
  2. NAVAREA IV 530/232023-05-16 → 2023-05-19
    NAVTEX station charleston (e) 32-50.67N 079-57.00W off air
    Western North Atlantic · South Carolina
  3. HYDROLANT 1066/232023-05-14 → 2023-06-25
    Odas buoy, yellow, fl (5) y 20 sec, established in 43-58.25N 008-31.60W
    Eastern North Atlantic · Spain
  4. HYDROLANT 983/232023-05-06 → 2023-05-09
    Cgoc shetland mf r/t service at collafirth hill in 60-32.00N 001-23.50W off air
    Eastern North Atlantic · Shetland Islands
  5. NAVAREA IV 469/232023-04-28 → 2023-05-03
    NAVTEX station charleston (e) 32-50.70N 079-57.00W off air
    Western North Atlantic · South Carolina
  6. HYDROLANT 852/232023-04-20 → 2023-04-26
    Cgoc shetland mf dsc and r/t services at collafirth hill 60-32.00N 001-23.50W off air
    Eastern North Atlantic · Shetland Islands
  7. NAVAREA IV 425/232023-04-18 → 2023-04-18
    Uscg remote communication facilities: a. boston (f) 41-42.80N 070-30.30W
  8. NAVAREA IV 417/232023-04-14 → 2023-04-19
    Broadcast and communication services unreliable 1200Z to 1400Z daily 18 and 19 apr at uscg remote…
  9. NAVAREA IV 403/232023-04-11 → 2023-04-14
    Uscg remote communication facility miami (a) 25-37.40N 080-23.40W hf/mf and dsc services off air
    Western North Atlantic · Florida
  10. NAVAREA IV 385/232023-04-06 → 2023-07-02
    NAVTEX station miami (a) 25-37.40N 080-23.37W inoperable
    Western North Atlantic · Florida
  11. NAVAREA IV 382/232023-04-06 → 2023-04-07
    Uscg remote communication facility portsmouth (n) 36-43.7N 076-00.6W unreliable
    Western North Atlantic · Virginia
  12. HYDROLANT 723/232023-04-04 → 2023-05-30
    Saint-louis lighthouse 16-01.50N 016-30.70W unlit
    Eastern North Atlantic · Senegal
  13. NAVAREA IV 339/232023-03-24 → 2023-04-01
    Straits of florida
    Western North Atlantic
  14. NAVAREA IV 327/232023-03-23 → 2023-03-24
    NAVTEX station san juan (r) 18-27.00N 066-06.00W off air
    Caribbean Sea · Western North Atlantic · Puerto Rico
  15. NAVAREA IV 261/232023-03-09 → 2023-03-10
    NAVTEX, sitor, dsc and vobra unreliable until 100001Z mar at uscg remote communication facilities: a. boston…
  16. NAVAREA IV 259/232023-03-09 → 2023-06-01
    Trinidad and tobago
    Eastern Caribbean Sea
  17. NAVAREA IV 194/232023-02-22 → 2023-02-22
    Uscg remote communication facility miami (a) 25-37.40N 080-23.37W hf dsc receive services off air
    Western North Atlantic · Florida
  18. NAVAREA IV 168/232023-02-14 → 2023-02-15
    NAVTEX station miami (a) 25-37.40N 080-23.40W unreliable
    Western North Atlantic · Florida
  19. HYDROLANT 321/232023-02-08 → 2023-08-08
    Pau cavado light 00-11.51N 050-47.25W RACON off air until 07 aug
    Western North Atlantic · Brazil
  20. NAVAREA IV 149/232023-02-06 → 2023-02-07
    Uscg remote communication facility miami (a) 25-37.4N 080-23.4W hf and mf transmit and receive services off…
    Western North Atlantic
  21. HYDROLANT 276/232023-02-03 → 2023-08-02
    Cabo orange light 04-25.86N 051-32.52W unlit until 01 aug
    Western North Atlantic · Brazil
  22. NAVAREA IV 137/232023-02-03 → 2023-02-08
    Uscg remote communication facility miami (a) 25-37.00N 080-23.00W hf dsc 16 mhz off air 081300Z to 082000Z feb
    Western North Atlantic · Florida
  23. NAVAREA IV 133/232023-02-03 → 2023-02-08
    Hf and sass off air 081300Z to 082000Z feb at uscg remote communication facilities: a. boston (f) 41-42.8N…
    Western North Atlantic
  24. HYDROLANT 266/232023-02-02 → 2023-03-20
    Islas sisargos light 43-21.60N 008-50.70W unlit
    Eastern North Atlantic · Spain
  25. NAVAREA IV 128/232023-02-01 → 2023-02-06
    Uscg remote communication facility chesapeake (n) 36-43.70N 076-00.60W hf and dsc services off air
    Western North Atlantic · Virginia
  26. HYDROLANT 211/232023-01-25 → 2023-01-28
    NAVTEX station (s. miguel) cencomaracores (f) 37-48.50N 025-33.20W off air
    North Atlantic · Azores
  27. HYDROLANT 198/232023-01-24 → 2023-02-07
    Cape draa light 28-40N 011-08W unlit
    Eastern North Atlantic · Morocco
  28. HYDROLANT 197/232023-01-24 → 2023-01-25
    NAVTEX station horta (azores) (j) 38-31.80N 028-37.75W off air
    North Atlantic · Azores
  29. HYDROLANT 196/232023-01-24 → 2023-02-07
    Cabo nachtigal light 28-30.00N 011-20.00W unlit
    Eastern North Atlantic · Morocco
  30. NAVAREA IV 83/232023-01-20 → 2023-01-21
    NAVTEX station charleston (e) 32-50.67N 079-57.00W off air
    Western North Atlantic · South Carolina
  31. NAVAREA IV 70/232023-01-17 → 2023-01-18
    Uscg remote communication facility boston (f) 41-42.80N 070-30.30W hf dsc receive services off air
    Western North Atlantic · Massachusetts
  32. NAVAREA IV 42/232023-01-11 → 2023-01-13
    NAVTEX station miami (a) 25-37.40N 080-23.37W off air
    Western North Atlantic · Florida
  33. HYDROLANT 72/232023-01-09 → 2023-01-10
    El hank light 33-36.60N 007-39.30W unlit
    Eastern North Atlantic · Morocco
  34. HYDROLANT 52/232023-01-06 → 2023-01-06
    White head light 58-31.00N 004-38.90W unlit
    Eastern North Atlantic · Scotland
  35. HYDROLANT 3206/222022-12-14 → 2022-12-17
    Esha ness light in 60-29.40N 001-37.70W unreliable
    Eastern North Atlantic · Orkney Islands
  36. HYDROLANT 3141/222022-12-07 → 2022-12-09
    El hank light 33-36.60N 007-39.30W unlit
    Eastern North Atlantic · Morocco
  37. NAVAREA IV 1296/222022-12-05 → 2022-12-26
    Uscg remote communication facility boston (f) 41-42.80N 070-30.30W hf dsc receive services for 8414.5 mhz…
    Western North Atlantic
  38. NAVAREA IV 1292/222022-12-04 → 2022-12-05
    NAVTEX station charleston (e) 32-50.67N 079-57.00W inoperable
    Western North Atlantic · South Carolina
  39. NAVAREA IV 1280/222022-12-02 → 2022-12-04
    Uscg remote communication facility miami (a) 25-37.40N 080-23.40W hf transmit and receive services unreliable
    Western North Atlantic · Florida
  40. NAVAREA IV 1198/222022-11-11 → 2022-11-13
    Uscg remote communication facility chesapeake (n) 36-43.70N 076-00.60W hf and dsc services off air
    Western North Atlantic · Virginia
  41. HYDROLANT 2862/222022-11-09 → 2022-11-14
    Cabo silleiro light 42-06.30N 008-53.80W unlit
    Eastern North Atlantic · Spain
  42. NAVAREA IV 1180/222022-11-08 → 2022-11-09
    NAVTEX station charleston (e) 32-50.7N 079-57.0W off air
    Western North Atlantic · South Carolina
  43. HYDROLANT 2801/222022-11-03 → 2022-11-04
    Sule skerry light 59-05.10N 004-24.50W unreliable
    Eastern North Atlantic · Scotland
  44. NAVAREA IV 1153/222022-10-30 → 2022-10-31
    NAVTEX station charleston (e) 32-51.00N 079-59.00W hf NAVTEX services off air
    Western North Atlantic · South Carolina
  45. NAVAREA IV 1148/222022-10-29 → 2022-10-31
    Cabo engano light 18-37.00N 068-19.70W unlit
    Caribbean Sea · Dominican Republic
  46. HYDROLANT 2666/222022-10-20 → 2022-10-21
    Cgoc shetland mf dsc and r/t services at collafirth hill 60-32.00N 001-23.50W off air
    Eastern North Atlantic · Shetland Islands
  47. HYDROLANT 2514/222022-10-04 → 2022-10-05
    El hank light 33-36.60N 007-39.30W unlit
    Eastern North Atlantic · Morocco
  48. HYDROLANT 2496/222022-10-01 → 2022-10-20
    Cgoc shetland mf r/t service at collafirth hill 60-32.00N 001-23.00W unreliable
    Eastern North Atlantic · Shetland Islands
  49. NAVAREA IV 979/222022-09-23 → 2022-09-29
    Uscg remote communication facility miami (a) 25-37.40N 080-23.40W hf receive services unreliable
    Western North Atlantic · Florida
  50. NAVAREA IV 978/222022-09-23 → 2022-10-14
    NAVTEX station miami (a) 25-37.40N 080-23.40W off air
    Western North Atlantic · Florida

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 3 · seahazards