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. HYDROLANT 914/022002-04-18 → 2002-04-19
    Vessel on fire in 56-02N 029-00W
  2. HYDROLANT 885/022002-04-16 → 2002-04-17
    Radar target detected in 40-06N 049-31W at 161625Z apr
  3. NAVAREA IV 135/022002-04-16 → 2002-04-17
    Radar target detected in 40-06N 049-31W at 161625Z apr
  4. NAVAREA IV 117/022002-04-04 → 2002-04-05
    Radar targets detected in: a. 45-58N 053-01W b. 46-15N 054-36W 2. cancel this msg 051355Z apr
  5. HYDROLANT 733/022002-03-30 → 2002-03-30
    M/V international 4 taking on water in 06-15N 055-11W
  6. HYDROLANT 679/022002-03-24 → 2002-03-25
    Radar target detected in 45-57N 044-46W
  7. NAVAREA IV 99/022002-03-24 → 2002-03-25
    Radar target detected in 45-57N 044-46W
  8. NAVAREA IV 95/022002-03-20 → 2002-03-27
    Eight meter long metal pipe adrift vicinity 26-54N 044-06W
  9. HYDROLANT 626/022002-03-17 → 2002-03-24
    Eight meter steel structure adrift vicinity 36-11N 022-36W at 171300Z mar
  10. HYDROLANT 594/022002-03-14 → 2002-03-21
    Underwater ordnance detonations: a. 191500Z to 201500Z mar within 75 miles of 55-45N 013-50W
  11. HYDROLANT 586/022002-03-13 → 2002-03-14
    Radar targets detected in: a. 48-09N 045-01W at 131231Z
  12. NAVAREA IV 87/022002-03-13 → 2002-03-14
    Radar targets detected in: a. 48-09N 045-01W at 131231Z
  13. HYDROLANT 354/022002-02-12 → 2002-03-29
    One red flare sighted in 31-59N 017-25W at 120115Z feb
  14. HYDROLANT 212/022002-01-29 → 2002-01-29
    Noup head light 59-20N 003-04W at reduced intensity
  15. HYDROLANT 74/022002-01-10 → 2002-01-15
    Moroccan authorities have established a prohibited area until further notice in area bound by 33-38.0N…
  16. HYDROLANT 3281/012001-12-27 → 2002-02-08
    Vessel cap georges reports crewman with acute abdominal pain requiring medical assistance in 53-53N 032-01W…
  17. HYDROLANT 3253/012001-12-22 → 2001-12-23
    Muckle flugga light 60-51N 000-53W at reduced intensity
  18. HYDROLANT 3186/012001-12-15 → 2002-02-02
    5 meter vessel reports crewman with coronary thrombosis in 04-19N 012-41W
  19. HYDROLANT 3142/012001-12-11 → 2001-12-12
    M/V aurora emerald suffered explosion and fire in 03-38N 049-02W at 101117Z dec
  20. HYDROLANT 3095/012001-12-05 → 2001-12-13
    Moroccan authorities have established a prohibited area until further notice in area bound by 33-33.3N…
  21. HYDROLANT 3045/012001-11-29 → 2002-01-11
    S/V heaven can wait reports crewman with kidney stones requiring medical assistance in 23-36N 028-04W
  22. HYDROLANT 2911/012001-11-12 → 2001-11-15
    Odas buoy K1 adrift vicinity 48-26.0N 012-15.4W at 120640Z nov
  23. HYDROLANT 2908/012001-11-11 → 2001-12-25
    Red flare sighted in 46-00N 006-00W at 110230Z nov
  24. HYDROLANT 2804/012001-10-30 → 2001-11-06
    700 meter cable adrift vicinity 37-27N 010-46W at 300730Z oct
  25. HYDROLANT 2803/012001-10-30 → 2001-11-06
    700 meter cable adrift vicinity 36-19N 011-05W at 271400Z oct
  26. HYDROLANT 2734/012001-10-22 → 2001-10-29
    700 meter cable adrift vicinity 36-59N 010-00W at 220400Z oct
  27. NAVAREA IV 405/012001-10-21 → 2001-10-22
    Underwater ordnance detonations 230001Z to 242359Z oct within 200 miles 56-30N 035-45W
  28. HYDROLANT 2728/012001-10-21 → 2001-10-22
    Underwater ordnance detonations 230001Z to 242359Z oct within 200 miles 56-30N 035-45W
  29. HYDROLANT 2712/012001-10-19 → 2001-10-19
    M/V traden listing in 43-57N 016-50W
  30. HYDROLANT 2701/012001-10-18 → 2001-10-25
    700 meter cable adrift vicinity 36-54N 010-53W at 180400Z oct
  31. HYDROLANT 2698/012001-10-18 → 2001-10-25
    Underwater ordnance detonations 230001Z to 242359Z oct within 220 miles of 56-30N 035-45W
  32. NAVAREA IV 402/012001-10-18 → 2001-10-25
    Underwater ordnance detonations 230001Z to 242359Z oct within 220 miles of 56-30N 035-45W
  33. HYDROLANT 2655/012001-10-12 → 2001-10-18
    Underwater ordnance detonations 170600Z to 180600Z oct within 220 miles of 56-30N 035-45W
  34. NAVAREA IV 392/012001-10-12 → 2001-10-18
    Underwater ordnance detonations 170600Z to 180600Z oct within 220 miles of 56-30N 035-45W
  35. HYDROLANT 2573/012001-10-01 → 2001-10-08
    700 meter long cable adrift vicinity 36-53N 009-50W at 010400Z oct
  36. NAVAREA IV 379/012001-09-26 → 2001-10-03
    10 meter orange structure with double cylinders adrift in 28-52.8N 072-00.3W at 261840Z sep
  37. HYDROLANT 2532/012001-09-24 → 2001-10-01
    700 meter long cable adrift vicinity 36-32N 008-54W at 230200Z sep
  38. HYDROLANT 2503/012001-09-20 → 2001-11-02
    F/V jositan reports crewman with heart attack in 56-20N 017-08W
  39. HYDROLANT 2486/012001-09-18 → 2001-09-18
    Underwater ordnance detonations 180001Z to 202359Z sep within 60 miles of 62-48N 031-45W
  40. HYDROLANT 2482/012001-09-17 → 2001-09-28
    Underwater ordnance detonations 221000Z to 281200Z sep within 140 miles of 59-50N 033-40W
  41. NAVAREA IV 363/012001-09-17 → 2001-09-28
    Underwater ordnance detonations 221000Z to 281200Z sep within 140 miles of 59-50N 033-40W
  42. HYDROLANT 2458/012001-09-13 → 2001-09-21
    Underwater ordnance detonations 180001Z to 202359Z sep within 60 miles of 62-48N 031-45W
  43. HYDROLANT 2359/012001-08-28 → 2001-08-28
    Underwater ordnance detonations 290001Z to 300001Z aug in area bound by 62-46N 036-18W, 64-30N 033-10W,…
  44. NAVAREA IV 317/012001-08-28 → 2001-08-30
    Underwater ordnance detonations 290001Z to 300001Z aug in area bound by 62-46N 036-18W, 64-30N 033-10W,…
  45. HYDROLANT 2326/012001-08-24 → 2001-08-30
    Underwater ordnance detonations 290001Z to 300001Z aug within 65 miles of 63-00N 031-51W
  46. HYDROLANT 2320/012001-08-23 → 2001-08-31
    Hydrogaphic survey in progess until 30 aug by M/V professor logachev in area bound by 36-45N 010-00W, 36-45N…
  47. HYDROLANT 2303/012001-08-21 → 2001-08-24
    700 meter long cable, marked by buoy, adrift vicinity 36-32N 008-13W on 21 aug
  48. HYDROLANT 2207/012001-08-10 → 2001-08-18
    Underwater ordnance detonations 170600Z to 172359Z aug within 65 miles of 63-00N 031-51W
  49. HYDROLANT 2059/012001-07-23 → 2001-07-29
    Radar targets reported: a. 47-15N 042-53W at 212315Z jul
  50. NAVAREA IV 277/012001-07-23 → 2001-07-29
    Radar targets reported in: a. 47-15N 042-53W at 212315Z jul

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 21 · seahazards