Other warnings in the North Atlantic Ocean

Everything the classifier did not place elsewhere.

in force
1
last 12 months
1
vs previous 12 (1)
0%
since 1996
1,267

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 · 1

  1. NAVAREA XII 486/26in force2026-07-16
    U.S. Coast Guard remote communication facility in Honolulu has unreliable transmissions; broadcasts moved to Guam, DSC responses to Point Reyes.
    North Pacific · Hawaii

Longest in force

  1. NAVAREA XII 486/26in force2026-07-16 · 36 d
    U.S. Coast Guard remote communication facility in Honolulu has unreliable transmissions; broadcasts moved to Guam, DSC responses to Point Reyes.
    North Pacific · Hawaii

By year

96
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00
01
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03
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05
06
07
08
09
10
11
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15
16
17
18
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By month (all years)

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Other hazards in the North Atlantic Ocean

Archive · 1,266 cancelled

  1. HYDROLANT 1977/242024-09-11 → 2026-08-17
    Radar jamming exercises are held daily from 0800Z to 1700Z, 16 September to 11 October, within 25 miles of 57-21N 007-24W in the Sea of the Hebrides.
    Sea of the Hebrides · Scotland
  2. NAVAREA IV 490/242024-05-01 → 2026-08-14
    The Port of Baltimore is open with restrictions due to a marine casualty until further notice.
    Western North Atlantic · Maryland
  3. NAVAREA IV 460/242024-04-23 → 2026-08-14
    All services unreliable at U.S. Coast Guard remote communication facilities at Boston, Charleston, Chesapeake, Miami, New Orleans, and San Juan.
  4. HYDROLANT 848/242024-04-21 → 2026-08-14
    Sailing vessel Nabucco reports crewman needing medical aid at 27-29.57N 063-08.36W on April 21, 2023. Vessels nearby asked to assist.
    Western North Atlantic
  5. HYDROLANT 789/242024-04-14 → 2024-05-03
    F/V sama-zein requesting assistance in vicinity 00-51.70N 008-52.00W
    Gulf of Guinea
  6. HYDROLANT 721/242024-04-05 → 2024-04-26
    One person reported in the water in vicinity 21-12.50N 074-47.90W
    Old Bahama Channel · Western North Atlantic · Cuba
  7. NAVAREA IV 349/242024-03-26 → 2024-05-01
    Due to marine casualty, the port of baltimore 39-16.00N 076-35.00W is closed until further notice
    Western North Atlantic · Maryland
  8. HYDROLANT 581/242024-03-20 → 2024-03-20
    Radar jamming exercises 0830Z to 1700Z daily 25 thru 29 mar in area within 11 miles of 57-20.97N 007-24.00W
    Eastern North Atlantic · Little Minch · Scotland
  9. HYDROLANT 559/242024-03-17 → 2024-04-05
    Vessel calvao reports crewman requiring medical assistance in 07-24.03N 029-32.03W
    North Atlantic
  10. NAVAREA IV 299/242024-03-16 → 2024-03-29
    Transmit and receive services unreliable at uscg remote communication facilities: a. chesapeake (n) 36-44N…
    Western North Atlantic · Gulf of Mexico · Eastern Caribbean Sea
  11. NAVAREA IV 257/242024-03-06 → 2024-03-07
    Gmdss services unreliable 071500Z to 071600Z mar at uscg remote communication facilities: a. boston (f)…
    Atlantic Ocean
  12. HYDROLANT 357/242024-02-20 → 2024-02-22
    M/V ambition requesting medical assistance in 24-24.20N 047-14.80W at 201210Z feb
    Western North Atlantic
  13. NAVAREA IV 166/242024-02-14 → 2024-02-17
    Three meter buoy with 130 meter rope adrift in vicinity 07-15.35N 055-54.57W
    Western North Atlantic · Suriname
  14. HYDROLANT 285/242024-02-09 → 2024-02-23
    F/V soulaihi requesting assistance in vicinity 33-21.00N 008-52.00W
    Eastern North Atlantic · Morocco
  15. NAVAREA IV 140/242024-02-08 → 2024-02-11
    Odas buoy 41049 adrift in vicinity 27-25.08N 062-49.22W at 080700Z feb
    Western North Atlantic
  16. HYDROLANT 233/242024-02-01 → 2024-02-15
    40 foot S/V orion requesting assistance in 23-16.80N 067-13.20W
    Western North Atlantic
  17. NAVAREA IV 102/242024-01-31 → 2024-02-16
    S/V tiny dancer requesting medical assistance in vicinity 12-38.00N 052-34.00W at 310207Z
    Western North Atlantic
  18. NAVAREA IV 100/242024-01-30 → 2024-02-03
    Services unreliable 302203Z jan to 022359Z feb at uscg remote communication facilities: a. boston (f)…
  19. NAVAREA IV 92/242024-01-29 → 2024-01-31
    S/V tiny dancer requesting medical assistance in vicinity 12-12.00N 048-41.00W at 291035Z jan
    Western North Atlantic
  20. NAVAREA IV 54/242024-01-17 → 2024-01-18
    Uscg remote communication facility charleston (e) 32-50.7N 079-57.0W unable to transmit
    Western North Atlantic · South Carolina
  21. NAVAREA IV 1465/232023-12-17 → 2023-12-18
    Transmit services degraded 181400Z to 181600Z dec at uscg remote communication facilities: a. boston (f)…
    United States
  22. NAVAREA IV 1464/232023-12-16 → 2023-12-21
    Transmit and receive services inoperable 211400Z to 211900Z dec at uscg remote communication facilities: a.…
    United States
  23. NAVAREA IV 1462/232023-12-16 → 2023-10-18
    Transmit services degraded 181400Z to 181600Z dec at uscg remote communication facilities: a. boston (f)…
    United States
  24. HYDROLANT 2884/232023-12-14 → 2023-12-17
    Odas buoy K1 adrift in 48-35.40N 012-26.40W at 140200Z dec
    Eastern North Atlantic
  25. NAVAREA IV 1431/232023-12-12 → 2023-12-12
    Services unreliable 121400Z to 121700Z dec at uscg remote communication facilities: a. boston (f) 41-43.00N…
  26. NAVAREA IV 1402/232023-12-04 → 2023-12-07
    Tree trunk adrift in vicinity 18-14.46N 062-27.46W at 031526Z dec
    Eastern Caribbean Sea · Saint Martin
  27. NAVAREA IV 1388/232023-11-30 → 2023-12-03
    Vessel partially submerged in 41-52.00N 042-44.70W
    North Atlantic
  28. HYDROLANT 2640/232023-11-17 → 2023-12-08
    M/V yasa osaka reports crewman with heart attack symptoms requiring medical assistance in 26-03.33N 050-07.20W
    Western North Atlantic
  29. HYDROLANT 2540/232023-11-07 → 2023-11-24
    S/V patronus, low on diesel fuel in vicinity 35-09.93N 068-19.89W at 061555Z nov
    Western North Atlantic
  30. HYDROLANT 2303/232023-10-11 → 2023-10-27
    Vessel requesting assistance in 28-57.29N 011-54.87W
    Eastern North Atlantic · Morocco
  31. NAVAREA IV 1135/232023-10-01 → 2023-10-04
    Dart buoy 44403 adrift in vicinity 41-51.49N 061-35.52W at 011900Z oct
    Western North Atlantic
  32. NAVAREA IV 1116/232023-09-25 → 2023-09-27
    Uscg remote communication facility miami (a) 25-37.00N 080-23.00W transmit and receive services unreliable
    Florida
  33. NAVAREA IV 1114/232023-09-24 → 2023-09-27
    Due to passage of tropical depression ophelia baltimore 39-16N 076-35W is reopened
  34. NAVAREA IV 1111/232023-09-24 → 2023-09-24
    Due to tropical depression ophelia: 1. the following ports are closed: none to report
  35. NAVAREA IV 1110/232023-09-23 → 2023-09-24
    Due to tropical storm ophelia: 1. the following ports are closed: a. chesapeake bay entrance 36-57N 075-59W
  36. NAVAREA IV 1108/232023-09-23 → 2023-09-23
    Due to tropical storm ophelia: 1. the following ports are closed: a. chesapeake bay entrance 36-57N 075-59W
  37. NAVAREA IV 1105/232023-09-23 → 2023-09-23
    Due to tropical storm ophelia: 1. the following port(s) are closed: a. morehead city 34-44.00N 076-45.00W
  38. NAVAREA IV 1101/232023-09-22 → 2023-09-23
    Due to tropical cyclone sixteen: 1. the following port(s) are closed: a. morehead city 34-44.00N 076-45.00W
  39. HYDROLANT 2082/232023-09-16 → 2023-09-19
    250 square meter kite wing adrift in 50-13.00N 014-10.00W at 161402Z sep
    Eastern North Atlantic
  40. NAVAREA IV 1033/232023-09-05 → 2023-09-06
    Due to post-tropical cyclone idalia: 1. the following port(s) are closed: none to report
  41. NAVAREA IV 1009/232023-08-31 → 2023-09-05
    Due to hurricane idalia: 1. the following port(s) are closed: a. port manatee 27-38.00N 082-34.00W
  42. NAVAREA IV 1005/232023-08-30 → 2023-08-31
    Due to hurricane idalia: 1. the following port(s) are closed: a. charleston 32-47N 079-55W
  43. HYDROLANT 1930/232023-08-29 → 2024-02-15
    Pau cavado light 00-11.50N 050-47.24W damaged
    Western North Atlantic · Brazil
  44. NAVAREA IV 949/232023-08-23 → 2023-08-26
    Dart buoy 44402 adrift in vicinity 39-03.73N 071-32.56W at 230100Z aug
    Western North Atlantic
  45. HYDROLANT 1692/232023-07-28 → 2023-08-11
    Vessel taking on water in vicinity 26-49.25N 079-06.74W
    Western North Atlantic · Bahamas
  46. NAVAREA IV 805/232023-07-17 → 2023-07-20
    Uscg remote communication facility boston (f) 41-42.8N 070-30.3W transmit services inoperable
    Massachusetts
  47. HYDROLANT 1460/232023-06-28 → 2023-06-28
    One person requesting evacuation from rockall islet (57-35.48N 013-41.19W) at 280751Z jun
    Eastern North Atlantic
  48. HYDROLANT 1439/232023-06-26 → 2023-07-07
    Life ring reported in 33-49.00N 065-02.00W
    Western North Atlantic · Bermuda
  49. HYDROLANT 1420/232023-06-25 → 2023-06-28
    100 meter pontoon, black hull, adrift in vicinity 41-14.00N 026-58.00W at 251139Z jun
    North Atlantic
  50. NAVAREA IV 619/232023-06-05 → 2023-06-23
    S/V nyenergi reports crewman requiring medical assistance in 36-33.00N 042-48.00W
    North Atlantic

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.

Other warnings in the North Atlantic Ocean · seahazards