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 70/012001-02-26 → 2001-03-04
    Underwater ordnance detonations 0800Z to 2359Z daily 02 and 03 mar in area bound by 62-46N 036-18W, 64-30N…
  2. HYDROLANT 563/012001-02-15 → 2001-02-21
    Underwater ordnance detonations 200500Z to 202359Z feb within 65 miles of 63-00N 031-51W
  3. HYDROLANT 490/012001-02-10 → 2001-02-10
    Flare sighted vicinity 47-15N 034-00W at 100443Z feb
  4. HYDROLANT 455/012001-02-07 → 2001-02-15
    Underwater ordnance detonations 120500Z to 142359Z feb within 65 miles of 63-00N 031-51W
  5. NAVAREA IV 45/012001-02-07 → 2001-02-15
    Underwater ordnance detonations 120500Z to 142359Z feb within 65 miles of 63-00N 031-51W
  6. HYDROLANT 254/012001-01-22 → 2001-01-29
    Unexploded ordance adrift vicinity 61-05.2N 029-11.0W
  7. NAVAREA IV 25/012001-01-22 → 2001-01-29
    Unexploded ordance adrift vicinity 61-05.2N 029-11.0W
  8. HYDROLANT 173/012001-01-16 → 2001-01-20
    Underwater ordnance detonations 190500Z to 192359Z jan in area bound by 62-46N 036-18W, 64-30N 033-10W,…
  9. NAVAREA IV 18/012001-01-16 → 2001-01-20
    Underwater ordnance detonations 190500Z to 192359Z jan in area bound by 62-46N 036-18W, 64-30N 033-10W,…
  10. HYDROLANT 134/012001-01-12 → 2001-03-01
    S/V lennuck reports crewman requiring medical assistance in 00-27N 015-08W
  11. HYDROLANT 131/012001-01-12 → 2001-01-13
    Underwater ordnance detonations in progress until 122359Z jan in area bound by 62-46N 036-18W, 64-30N…
  12. NAVAREA IV 16/012001-01-12 → 2001-01-13
    Underwater ordnance detonations in progress until 122359Z jan in area bound by 62-46N 036-18W, 64-30N…
  13. HYDROLANT 130/012001-01-12 → 2001-01-20
    Underwater ordnance detonations 190500Z to 192359Z jan within 65 miles of 63-00N 031-51W
  14. NAVAREA IV 15/012001-01-12 → 2001-01-20
    Underwater ordnance detonations 190500Z to 192359Z jan within 65 miles of 63-00N 031-51W
  15. HYDROLANT 93/012001-01-09 → 2001-01-16
    Three 30-40 meter long cranes adrift between 44-14.7N 013-47.5W and 44-27.6N 014-11.6W at 082330Z jan
  16. HYDROLANT 84/012001-01-08 → 2001-02-01
    Unexploded ordnance vicinity 62-43.1N 029-36.1W
  17. HYDROLANT 81/012001-01-08 → 2001-01-13
    Underwater ordnance detonations 120800Z to 122359Z jan within 127 miles of 62-55N 032-00W
  18. NAVAREA IV 9/012001-01-08 → 2001-01-13
    Underwater ordnance detonations 120800Z to 122359Z jan within 127 miles of 62-55N 032-00W
  19. HYDROLANT 34/012001-01-04 → 2001-01-05
    Underwater ordnance detonation 051355Z jan vicinity 62-43N 029-36W
  20. HYDROLANT 4284/002000-12-30 → 2001-06-05
    Morocco has announced that all maritime activities are prohibited in area bound by 33-33.5N 007-45.0W,…
  21. HYDROLANT 4271/002000-12-29 → 2001-01-05
    Underwater ordnance detonations 030800Z to 032359Z and 040800Z to 042359Z jan in area bound by 62-46N…
  22. NAVAREA IV 519/002000-12-21 → 2000-12-28
    Odas buoy 41001 adrift vicinity 34-41.1N 072-30.6W at 201300Z dec
  23. NAVAREA IV 518/002000-12-20 → 2000-12-21
    Odas buoy 41001 adrift vicinity 34-46.4N 072-40.4W at 191500Z dec
  24. HYDROLANT 4156/002000-12-18 → 2000-12-21
    Underwater ordnance detonations 190600Z to 202359Z dec in area bound by 62-46N 036-18W, 64-30N 033-10W,…
  25. HYDROLANT 4154/002000-12-18 → 2000-12-21
    Recovery operations 19 thru 22 dec by M/V neftegaz 66 in area bound by 05-57N 047-12W, 05-26N 047-10W,…
  26. NAVAREA IV 515/002000-12-18 → 2001-02-02
    605 foot M/V sea breeze I sunk vicinity 37-36N 071-20W at 171912Z dec
  27. HYDROLANT 4143/002000-12-16 → 2000-12-17
    Derelect adrift vicinity 54-03N 025-00W at 161255Z dec
  28. HYDROLANT 4109/002000-12-14 → 2000-12-21
    Underwater ordnance detonations 190600Z to 202359Z dec within 100 miles of 62-50N 032-00W
  29. HYDROLANT 4075/002000-12-09 → 2000-12-10
    Seven persons abandoning vessel team philips in 52-44.5N 028-17.4W
  30. HYDROLANT 4062/002000-12-08 → 2000-12-08
    Possible unexploded ordnance vicinity: a. 47-37N 031-41W
  31. HYDROLANT 4056/002000-12-07 → 2000-12-08
    Possible unexploded ordnance vicinity 48-07N 029-08W
  32. NAVAREA IV 499/002000-12-06 → 2000-12-13
    760 foot long cable adrift vicinity 29-51N 079-23W
  33. HYDROLANT 3979/002000-11-30 → 2001-01-11
    S/V ciris lost rudder in 16-44.5N 028-54.5W at 292010Z nov
  34. HYDROLANT 3930/002000-11-24 → 2000-12-15
    Morocco has announced that all maritime activities are prohibited in area bound by 33-52.6N 007-02.6W,…
  35. HYDROLANT 3917/002000-11-24 → 2001-01-05
    38 foot S/V half and half reports crewman with head injury vicinity 21-53.8N 022-51.5W at 240001Z nov
  36. HYDROLANT 3849/002000-11-15 → 2000-11-22
    15 meter platform adrift vicinity 44-26N 029-54W at 141740Z nov
  37. HYDROLANT 3628/002000-10-27 → 2000-12-08
    M/V vidzeme reports captain suffering heart attack in 05-14N 010-13W at 270900Z oct
  38. HYDROLANT 3525/002000-10-16 → 2000-12-30
    Morocco has announced that all maritime activities are prohibited in area bound by 33-33.3N 007-45.0W,…
  39. HYDROLANT 3482/002000-10-12 → 2000-10-13
    Odas buoy brittany adrift vicinity 47-10N 007-41W at 121100Z oct
  40. HYDROLANT 3464/002000-10-11 → 2000-10-12
    Odas buoy brittany adrift vicinity 47-20N 008-03W at 110800Z oct
  41. HYDROLANT 3453/002000-10-10 → 2000-10-11
    Odas buoy brittany adrift vicinity 47-27N 008-19W at 101300Z oct
  42. HYDROLANT 3323/002000-09-27 → 2000-09-30
    Underwater ordnance detonations 290600Z to 300600Z sep in area bound by 62-46N 036-18W, 64-30N 033-10W,…
  43. NAVAREA IV 408/002000-09-27 → 2000-09-30
    Underwater ordnance detonations 290600Z to 300600Z sep in area bound by 62-46N 036-18W, 64-30N 033-10W,…
  44. HYDROLANT 3320/002000-09-27 → 2000-09-29
    Underwater ordnance detonations 280600Z to 290600Z sep in area bound by 66-20N 031-00W, 64-08N 035-45W,…
  45. NAVAREA IV 406/002000-09-27 → 2000-09-29
    Underwater ordnance detonations 280600Z to 290600Z sep in area bound by 66-20N 031-00W, 64-08N 035-45W,…
  46. HYDROLANT 3240/002000-09-19 → 2000-09-21
    Underwater ordnance detonations 0600Z to 2000Z daily 20 and 21 sep in area bound by 62-46N 036-18W, 64-30N…
  47. NAVAREA IV 394/002000-09-19 → 2000-09-21
    Underwater ordnance detonations 0600Z to 2000Z daily 20 and 21 sep in area bound by 62-46N 036-18W, 64-30N…
  48. NAVAREA IV 385/002000-09-14 → 2000-09-21
    Large orange target drone adrift in 30-30N 080-58W at 131700Z sep
  49. NAVAREA IV 378/002000-09-12 → 2000-09-19
    28 foot orange target drone adrift in 30-35N 080-34W at 112130Z sep
  50. NAVAREA IV 372/002000-09-08 → 2000-09-14
    Underwater ordnance detonations 141000Z to 142000Z sep in area bound by 62-46N 036-18W, 64-30N 033-10W,…

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 23 · seahazards