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. NAVAREA IV 802/262026-08-18 → 2026-08-19
    NAVTEX station Miami is off air; NAVAREA IV warning 800/26 is canceled.
    Western North Atlantic · Florida
  2. NAVAREA IV 1196/242024-10-01 → 2026-08-17
    NAVTEX station Chesapeake at 36-44.00N 076-01.00W is off air, cancelling NAVAREA IV 750/24.
    Western North Atlantic · Virginia
  3. HYDROLANT 2077/242024-09-27 → 2026-08-17
    Punta Lantilla Light in the Canary Islands, at 28-13.80N 013-56.90W, is unlit.
    Eastern North Atlantic · Canary Islands
  4. HYDROLANT 2026/242024-09-19 → 2026-08-17
    Cabo Orange Light at 04-26.0N 051-32.2W is unlit.
    Western North Atlantic · Brazil
  5. HYDROLANT 1940/242024-09-04 → 2026-08-17
    NAVTEX station Sao Miguel at 37 degrees 48.50 minutes north, 25 degrees 33.20 minutes west has medium and high frequency services off air.
    Azores
  6. NAVAREA IV 1065/242024-09-02 → 2026-08-17
    Cayo Confites light at 22-11.30N 077-39.70W in Old Bahama Channel, Cuba is unlit.
    Old Bahama Channel · Cuba
  7. NAVAREA IV 990/242024-08-15 → 2026-08-17
    Uscg remote communication facility boston (f) 41-42.80N 070-30.30W hf transmit services unreliable
    Western North Atlantic · Massachusetts
  8. NAVAREA IV 978/242024-08-15 → 2026-08-17
    La Desirade lighthouse at 16-20.00N 061-00.33W is unlit.
    Eastern Caribbean Sea · Guadeloupe
  9. NAVAREA IV 977/242024-08-14 → 2026-08-17
    The U.S. Coast Guard's remote communication facility at Chesapeake, at 36-44N 076-01W, has unreliable medium and high frequency transmit and receive.
    Western North Atlantic · Virginia
  10. NAVAREA IV 901/242024-07-30 → 2026-08-17
    Cayo Fragoso Light at 22-48.40N 079-34.70W is unreliable.
    Old Bahama Channel · Western North Atlantic · Cuba
  11. HYDROLANT 1614/242024-07-21 → 2026-08-17
    Odas buoy established in 01-27.36N 049-12.68W
    Western North Atlantic · Brazil
  12. NAVAREA IV 659/242024-06-07 → 2026-08-17
    Cayo paredon grande light 22-29.00N 078-09.90W unlit
    Old Bahama Channel · Cuba
  13. NAVAREA IV 589/242024-05-23 → 2024-10-02
    Odas buoy established in 49-42.44N 046-39.39W
    Western North Atlantic
  14. NAVAREA IV 544/242024-05-15 → 2026-08-17
    Odas buoy established in 49-40.61N 046-22.38W
    Western North Atlantic
  15. NAVAREA IV 512/242024-05-07 → 2024-05-08
    NAVTEX station charleston (e) 32-08.00N 081-42.00W unreliable
    Western North Atlantic · South Carolina
  16. HYDROLANT 892/242024-04-26 → 2026-08-14
    The Sidi Ifni light at 29-22.50N 010-10.70W is unlit, and Hydrolant 544/24 is cancelled.
    Eastern North Atlantic · Morocco
  17. HYDROLANT 870/242024-04-24 → 2024-05-03
    GPS jamming exercises 0830Z to 1700Z daily 29 apr thru 03 may in area within 11 miles of 57-21.00N 007-24.00W
    Eastern North Atlantic · Little Minch · Scotland
  18. NAVAREA IV 462/242024-04-23 → 2024-04-24
    Mf, hf, and dsc services unreliable 241300Z to 241800Z apr at uscg remote communication facilities: a.…
  19. NAVAREA IV 442/242024-04-18 → 2024-04-22
    Mf, hf and dsc services off air 221300Z to 221800Z apr at uscg remote communication facilities: a. boston…
    Western North Atlantic · Gulf of Mexico
  20. HYDROLANT 802/242024-04-15 → 2024-05-06
    Ras spartel light 35-47.50N 005-55.40W unlit
    Eastern North Atlantic · Morocco
  21. NAVAREA IV 405/242024-04-08 → 2024-04-17
    Uscg remote communication facility miami (a) 25-37.40N 080-23.40W hf and mf transmit and receive services…
    Western North Atlantic · Florida
  22. HYDROLANT 667/242024-04-01 → 2024-04-04
    Mrcc shetland mf r/t and dsc services at collafirth hill site 60-32.00N 001-23.50W off air
    Eastern North Atlantic · Shetland Islands
  23. HYDROLANT 618/242024-03-24 → 2024-03-28
    NAVTEX stations off air: a. sao miguel (f) 37-48.00N 025-33.00W
    Eastern North Atlantic · Portugal
  24. NAVAREA IV 337/242024-03-23 → 2024-03-25
    Uscg remote communication facility san juan (r) 18-27.00N 066-06.00W transmit and receive services off air…
    Puerto Rico
  25. HYDROLANT 580/242024-03-20 → 2024-03-20
    GPS jamming exercises 0830Z to 1700Z daily 25 thru 29 mar in area within 11 miles of 57-21.00N 007-24.00W
    Eastern North Atlantic · Little Minch · Scotland
  26. HYDROLANT 567/242024-03-18 → 2024-03-19
    El hank light 33-36.60N 007-39.30W unlit
    Eastern North Atlantic · Morocco
  27. HYDROLANT 544/242024-03-15 → 2024-04-26
    Sidi ifni light 29-23.00N 010-11.00W unlit
    Eastern North Atlantic · Morocco
  28. HYDROLANT 537/242024-03-15 → 2024-09-12
    Cabo orange light 04-25.86N 051-32.52W unlit until 11 sep
    Western North Atlantic · Brazil
  29. HYDROLANT 512/242024-03-12 → 2026-08-14
    Pau Cavado Light in Brazil at 00-11.51N 050-47.25W is unreliable.
    Western North Atlantic · Brazil
  30. NAVAREA IV 275/242024-03-12 → 2024-03-14
    Mf, hf, and dsc services unreliable 141400Z to 141500Z mar at uscg remote communication facilities: a.…
  31. NAVAREA IV 258/242024-03-07 → 2024-03-16
    NAVTEX station miami (a) 25-37.40N 080-23.37W inoperable
    Western North Atlantic · Florida
  32. NAVAREA IV 249/242024-03-05 → 2024-03-06
    Mf, hf and dsc services unreliable 062100Z to 062200Z mar at uscg remote communication facilities: a. miami…
    Western North Atlantic · Caribbean Sea · Gulf of Mexico
  33. NAVAREA IV 201/242024-02-22 → 2024-02-24
    Uscg remote communication facility chesapeake (n) 36-44.00N 076-01.00W dsc services off air
    Western North Atlantic · Virginia
  34. NAVAREA IV 193/242024-02-20 → 2024-02-22
    Uscg remote communication facility chesapeake (n) 36-44.00N 076-01.00W mf and hf services off air 221500Z to…
    Western North Atlantic · Virginia
  35. NAVAREA IV 192/242024-02-20 → 2024-02-20
    Uscg remote communication facility chesapeake (n) 36-44.00N 076-01.00W mf and hf services off air 201500Z to…
    Western North Atlantic · Virginia
  36. HYDROLANT 338/242024-02-17 → 2024-02-22
    Flannan isles light 58-17.30N 007-35.30W unreliable
    Eastern North Atlantic · Scotland
  37. NAVAREA IV 162/242024-02-13 → 2024-02-14
    Uscg remote communication facility miami (a) 25-30.00N 080-23.00W mf and hf transmit services unreliable
    Straits of Florida · Western North Atlantic · Florida
  38. NAVAREA IV 154/242024-02-11 → 2024-02-11
    NAVTEX station miami (a) 25-37.00N 080-23.00W unreliable
    Western North Atlantic · Florida
  39. NAVAREA IV 138/242024-02-08 → 2024-02-08
    Uscg remote communication facility boston (f) 41-42.80N 070-30.30W mf and hf transmit services unreliable…
    Western North Atlantic · Massachusetts
  40. NAVAREA IV 101/242024-01-31 → 2026-08-14
    A two-meter yellow buoy has been established at 10-30N 060-08W, and a 500-meter berth is requested.
    Western North Atlantic
  41. HYDROLANT 193/242024-01-25 → 2024-01-26
    Mrcc shetland mf r/t and dsc services at collafirth hill site 60-32.00N 001-23.50W off air
    Eastern North Atlantic · Shetland Islands
  42. NAVAREA IV 59/242024-01-18 → 2024-03-27
    NAVTEX station charleston (e) 32-50.67N 079-57.00W unable to transmit
    Western North Atlantic · South Carolina
  43. NAVAREA IV 35/242024-01-10 → 2026-08-14
    Cayo Moa light established in Old Bahama Channel, Cuba, flashing white every 10 seconds, 14 meters high, 10 miles range.
    Old Bahama Channel · Cuba
  44. HYDROLANT 2959/232023-12-28 → 2024-01-24
    Mrcc shetland mf r/t and dsc services at collafirth hill site 60-32.00N 001-23.50W off air
    Eastern North Atlantic · Shetland Islands
  45. NAVAREA IV 1494/232023-12-23 → 2023-12-24
    Uscg remote communication facility chesapeake (n) 36-44.00N 076-01.00W dsc services off air
    Western North Atlantic · Virginia
  46. NAVAREA IV 1463/232023-12-16 → 2023-12-20
    Florida 1. uscg remote communication facility miami (a) 25-37.4N 080-23.4W hf and mf transmit services off…
  47. NAVAREA IV 1408/232023-12-04 → 2023-12-13
    Two temporary buoys established in 32-01.20N 064-25.80W until 12 dec by M/V ile de molene
    Western North Atlantic · Bermuda
  48. NAVAREA IV 1378/232023-11-29 → 2023-11-30
    Uscg remote communication facility chesapeake (n) 36-44.00N 076-01.00W mf and hf transmitters unreliable…
    Western North Atlantic · Virginia
  49. HYDROLANT 2701/232023-11-23 → 2023-11-26
    NAVTEX station porto santo (p) 33-05.70N 016-20.40W off air
    Eastern North Atlantic · Madeira
  50. HYDROLANT 2659/232023-11-19 → 2023-11-19
    Mrcc shetland mf r/t and dsc services at collafirth hill site 60-32.00N 001-23.50W off air
    Eastern North Atlantic · Shetland Islands

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 · seahazards