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 952/991999-05-09 → 1999-05-15
    Seabed tide gauges temporarily established in 54-51.5N 010-14.0W, 55-03.0N 008-56.0W, 55-18.0N 009-48.0W
  2. HYDROLANT 925/991999-05-06 → 1999-05-06
    M/V innovator requests urgent medical assistance for seriously ill crew member vicinity 10-43N 017-32W
  3. HYDROLANT 815/991999-04-25 → 1999-04-25
    Abandoned F/V on fire in 59-40.5N 005-43.4W
  4. HYDROLANT 745/991999-04-16 → 1999-04-18
    Underwater ordnance detonations 170600Z to 180600Z apr in area bound by 61-00N 030-00W, 62-50N 027-23W,…
  5. HYDROLANT 727/991999-04-15 → 1999-04-15
    Underwater ordnance detonations 160600Z to 170600Z apr in area bound by 61-00N 030-00W, 62-50N 027-23W,…
  6. HYDROLANT 711/991999-04-12 → 1999-04-26
    Radar target sighted in 47-28.0N 051-41.6W at 121034Z apr
  7. NAVAREA IV 104/991999-04-12 → 1999-04-26
    Radar target sighted in 47-28.0N 051-41.6W at 121034Z apr
  8. HYDROLANT 682/991999-04-08 → 1999-04-10
    Underwater ordnance detonations 090600Z to 100600Z apr in area bound by 61-00N 030-00W, 62-50N 027-23W,…
  9. HYDROLANT 665/991999-04-06 → 1999-04-08
    Smoke signal sighted in vicinity 05-06.0N 050-07.7W at 031455Z apr
  10. HYDROLANT 636/991999-04-02 → 1999-04-03
    Underwater ordnance detonations 020600Z to 030600Z apr in area bound by 61-00N 030-00W, 62-50N 027-23W,…
  11. NAVAREA IV 51/991999-02-17 → 1999-02-26
    Underwater ordnance detonations 1200Z to 2100Z daily 22 thru 26 feb within one mile of 32-35N 079-45W
  12. NAVAREA IV 275/981998-09-18 → 1999-03-13
    Unexploded ordnance vicinity 42-38.00N 069-04.04W
  13. HYDROLANT 1371/981998-07-14 → 2000-06-16
    Morocco has announced that all maritime activities are prohibited in area bound by 33-33.3N 007-45.0W,…
  14. HYDROLANT 1265/981998-07-02 → 1999-06-15
    Morocco has announced that all maritime activities are prohibited in area bound by 34-02.2N 006-50.5W,…
  15. HYDROLANT 482/981998-03-17 → 2000-06-16
    Prohibited area established in area bound by 33-45.1N 007-18.6W, 33-58.2N 007-19.0W, 34-04.2N 007-07.6W,…
  16. NAVAREA IV 729/961996-09-30 → 1999-03-13
    F/V sunk in 31-08.5N 081-17.7W at 280823Z sep

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 26 · seahazards