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 · 37 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
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
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 · 1,266 cancelled

  1. NAVAREA IV 112/002000-04-06 → 2000-04-13
    Four foot diameter steel piling, protruding 35 feet above water, adrift in 33-34N 041-43W
  2. HYDROLANT 1202/002000-04-06 → 2000-04-07
    Underwater ordnance detonations 060600Z to 062359Z apr in area bound by 62-46N 036-18W, 64-30N 033-10W,…
  3. NAVAREA IV 111/002000-04-06 → 2000-04-07
    Underwater ordnance detonations 060600Z to 062359Z apr in area bound by 62-46N 036-18W, 64-30N 033-10W,…
  4. HYDROLANT 1184/002000-04-05 → 2000-04-06
    Underwater ordnance detonations 050600Z to 052359Z apr in area bound by 62-46N 036-18W, 64-30N 033-10W,…
  5. NAVAREA IV 110/002000-04-05 → 2000-04-06
    Underwater ordnance detonations 050600Z to 052359Z apr in area bound by 62-46N 036-18W, 64-30N 033-10W,…
  6. NAVAREA IV 105/002000-03-31 → 2000-04-08
    One meter diameter steel pipe protruding five meters above water adrift in 33-15.5N 041-21.1W at 311630Z mar
  7. HYDROLANT 1076/002000-03-26 → 2000-04-04
    Bombing exercises 27 mar thru 03 apr in area bound by 48-00N 013-40W, 47-00N 016-40W, 50-55N 019-30W, 51-45N…
  8. HYDROLANT 941/002000-03-15 → 2000-03-16
    M/V falstaff reports injured crewman requiring medical assistance in 47-12N 020-50W
  9. NAVAREA IV 86/002000-03-15 → 2000-03-24
    Underwater ordnance detonations 1200Z to 2100Z daily 20 thru 24 mar within one mile of 32-36N 079-50W
  10. NAVAREA IV 83/002000-03-13 → 2000-03-20
    Underwater ordnance detonations: a. 141500Z to 142300Z and 151500Z to 152300Z mar in area bound by 32-25N…
  11. HYDROLANT 738/002000-02-27 → 2000-02-27
    Vessel on fire in 46-17N 007-07W
  12. HYDROLANT 280/002000-01-25 → 2000-02-01
    Container partially submerged and adrift vicinity 33-42N 012-54W at 241041Z jan
  13. NAVAREA IV 32/002000-01-24 → 2000-01-31
    Noaa weather buoy, yellow, FL(4) y 20 sec, adrift vicinity 40-14.8N 064-59.9W
  14. HYDROLANT 258/002000-01-24 → 2000-01-24
    Noaa weather buoy, yellow, FL(4) y 20 sec, adrift vicinity 40-14.8N 064-59.9W
  15. NAVAREA IV 14/002000-01-13 → 2000-01-21
    Odas buoy 41001 adrift vicinity 30-08-59N 075-04-17W
  16. HYDROLANT 2662/991999-12-09 → 1999-12-10
    Underwater ordnance detonations 100600Z to 101800Z dec in area bound by 62-46N 036-18W, 64-30N 033-10W,…
  17. HYDROLANT 2647/991999-12-07 → 1999-12-09
    Underwater ordnance detonations 0800Z to 1800Z daily 08 and 09 dec in area bound by 62-46N 036-18W, 64-30N…
  18. NAVAREA IV 402/991999-11-30 → 2000-02-18
    Delete legend "bravo" 32-50N 077-10W
  19. HYDROLANT 2415/991999-11-11 → 1999-11-13
    Underwater ordnance detonations 120600Z to 130600Z nov in area bound by 62-46N 036-18W, 64-30N 033-10W,…
  20. HYDROLANT 2387/991999-11-08 → 1999-11-19
    Possible unexploded ordnance adrift in 62-54N 027-49W
  21. HYDROLANT 2379/991999-11-07 → 1999-11-08
    Underwater ordnance detonations 080900Z to 082100Z nov in area bound by 62-46N 036-18W, 64-30N 033-10W,…
  22. HYDROLANT 2308/991999-10-29 → 1999-12-10
    F/V almadraba dos in 01-35N 005-00W reports crewman with head injury requiring medical assistance
  23. HYDROLANT 2302/991999-10-28 → 1999-12-16
    Possible unexploded ordnance vicinity 62-40N 028-31W
  24. HYDROLANT 2260/991999-10-22 → 1999-12-16
    Possible unexploded ordnance vicinity 62-53N 030-31W
  25. NAVAREA XII 360/991999-10-21 → 1999-11-28
    Hydrographic operations 230001Z oct to 280001Z nov in area bound by 59-00N 166-30W, 55-00N 158-00W, 60-00N…
  26. HYDROLANT 2249/991999-10-21 → 1999-12-16
    Possible unexploded ordnance vicinity 62-45N 029-05W
  27. HYDROLANT 2239/991999-10-20 → 1999-10-22
    Underwater ordnance detonations 210800Z to 211800Z and 220800Z to 221200Z oct in area bound by 61-00N…
  28. NAVAREA IV 357/991999-10-20 → 1999-10-22
    Underwater ordnance detonations 210800Z to 211800Z and 220800Z to 221200Z oct in area bound by 61-00N…
  29. HYDROLANT 2115/991999-10-05 → 1999-10-08
    M/V ocean queen in 01-16N 030-48W at 050946Z oct reports crewman injured and requires medical assistance
  30. NAVAREA IV 292/991999-08-25 → 1999-09-03
    Underwater ordnance detonations 1200Z to 2100Z daily 30 aug thru 03 sep within one mile of 32-38.65N…
  31. HYDROLANT 1718/991999-08-16 → 1999-08-23
    Radar target reported in 43-37.0N 047-06.9W
  32. NAVAREA IV 283/991999-08-16 → 1999-08-23
    Radar target reported in 43-37.0N 047-06.9W
  33. HYDROLANT 1698/991999-08-13 → 1999-08-19
    Radar target reported in 48-04.8N 043-58.3W at 122100Z aug
  34. NAVAREA IV 280/991999-08-13 → 1999-08-19
    Radar target reported in 48-04.8N 043-58.3W at 122100Z aug
  35. NAVAREA IV 239/991999-07-21 → 1999-07-23
    Underwater ordnance detonations 230800Z to 231800Z jul in area bound by 28-37N 076-30W, 28-24N 076-15W,…
  36. HYDROLANT 1415/991999-07-09 → 1999-07-16
    Radar target detected in 49-06.3N 049-30.1W at 091000Z jul
  37. NAVAREA IV 223/991999-07-09 → 1999-07-16
    Radar target detected in 49-06.3N 049-30.1W at 091000Z jul
  38. HYDROLANT 1349/991999-06-30 → 1999-07-07
    Radar target reported in 47-18.6N 048-40.1W at 282149Z jun
  39. NAVAREA IV 209/991999-06-30 → 1999-07-07
    Radar target reported in 47-18.6N 048-40.1W at 282149Z jun
  40. HYDROLANT 1252/991999-06-16 → 1999-06-23
    Pregnant woman requires medical assistance on S/V oona in 03-48N 027-42W at 122130Z jun
  41. HYDROLANT 1249/991999-06-15 → 2000-06-16
    Morocco has announced that all maritime activities are prohibited in area bound by 34-02.2N 006-50.5W,…
  42. HYDROLANT 1240/991999-06-15 → 1999-06-16
    Pregnant woman on S/V oona gravid in 03-48N 027-42W at 122130Z jun requires medical assistance
  43. HYDROLANT 1229/991999-06-13 → 1999-06-13
    Sick crew member reported on F/V moradina in 59-07.2N 018-07.8W at 131749Z jun
  44. HYDROLANT 1035/991999-05-21 → 1999-05-27
    Radar target reported in 44-10N 048-59W at 201215Z may
  45. NAVAREA IV 147/991999-05-20 → 1999-05-27
    Radar target reported in 44-10.0N 048-59.0W at 201215Z may
  46. HYDROLANT 1005/991999-05-18 → 1999-05-22
    Underwater ordnance detonations 180001Z to 212359Z may in area bound by 66-30N 031-20W, 66-00N 028-40W,…
  47. HYDROLANT 985/991999-05-15 → 1999-05-18
    Seabed tide gauges established in 54-51.5N 010-08.1W, 55-00.0N 009-07.0W and 55-18.0N 009-46.1W
  48. HYDROLANT 984/991999-05-15 → 1999-05-15
    Seabed tide gauges established in 54-51.5N 010-08.1W and 55-00.0N 009-07.0W
  49. HYDROLANT 979/991999-05-15 → 1999-05-16
    Kerkennah 1 buoy 35-06.5N 011-32.6W adrift
  50. HYDROLANT 971/991999-05-12 → 1999-10-01
    Whale rock buoy 57-55N 008-01W permanently discontinued

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 — page 25 · seahazards