Southern Ocean

IHO sea area 67 · -180° to 180° E, -86° to -60° N

in force
3
last 12 months
3
since 1999
3,131
categories
9

In force now · 3

  1. HYDROLANT 1570/26 · Icebergs2026-08-14
    Icebergs reported in the Scotia Sea and Antarctica at several coordinates; message cancels August 15, 2026, 06:32 UTC.
  2. HYDROPAC 2289/26 · Missiles2026-08-10
    Space debris hazard operations daily 13 to 26 August, 2100Z to 1800Z, in the South Pacific.
  3. HYDROLANT 1279/26 · Icebergs2026-06-30
    Icebergs are reported in South Atlantic, South Pacific, and Antarctica at positions A81, A84, A85, D33A, D33C; cancel message 011327Z July 26.

Longest in force

  1. HYDROLANT 1279/26 · Icebergs2026-06-30
    Icebergs are reported in South Atlantic, South Pacific, and Antarctica at positions A81, A84, A85, D33A, D33C; cancel message 011327Z July 26.
  2. HYDROPAC 2289/26 · Missiles2026-08-10
    Space debris hazard operations daily 13 to 26 August, 2100Z to 1800Z, in the South Pacific.
  3. HYDROLANT 1570/26 · Icebergs2026-08-14
    Icebergs reported in the Scotia Sea and Antarctica at several coordinates; message cancels August 15, 2026, 06:32 UTC.

By year

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

By category · since 1997

Icebergs2,99095%
Surveys421%
Missiles381%
Nav aids241%
Other181%
Wrecks120%
Derelicts40%
Exercises20%
Containers10%

Archive · 3,128 cancelled

  1. HYDROLANT 2989/22 · Icebergs2022-11-21 → 2022-11-22
    Icebergs reported in: a. A76A, 59-20.00S 049-00.00W
  2. HYDROLANT 2982/22 · Icebergs2022-11-20 → 2022-11-21
    Icebergs reported in: a. A64, 62-25.80S 053-27.60W
  3. HYDROLANT 2981/22 · Icebergs2022-11-20 → 2022-11-21
    Icebergs reported in: a. A76A, 59-20.00S 049-00.00W
  4. HYDROLANT 2972/22 · Icebergs2022-11-19 → 2022-11-20
    Icebergs reported in: a. A64, 62-25.80S 053-27.60W
  5. HYDROLANT 2971/22 · Icebergs2022-11-19 → 2022-11-20
    Icebergs reported in: a. A76A, 59-20.00S 049-05.00W
  6. HYDROLANT 2961/22 · Icebergs2022-11-18 → 2022-11-19
    Icebergs reported in: a. A76A, 59-16.00S 049-05.00W
  7. HYDROLANT 2954/22 · Icebergs2022-11-17 → 2022-11-18
    Icebergs reported in: a. A64, 62-25.80S 053-27.60W
  8. HYDROLANT 2953/22 · Icebergs2022-11-17 → 2022-11-18
    Icebergs reported in: a. A76A, 59-18.00S 049-09.00W
  9. HYDROLANT 2939/22 · Icebergs2022-11-16 → 2022-11-17
    Icebergs reported in: a. A64, 62-25.80S 053-27.60W
  10. HYDROLANT 2938/22 · Icebergs2022-11-16 → 2022-11-17
    Icebergs reported in: a. A76A, 59-13.00S 049-08.00W
  11. HYDROLANT 2927/22 · Icebergs2022-11-15 → 2022-11-16
    Icebergs reported in: a. A64, 62-25.80S 053-27.60W
  12. HYDROLANT 2926/22 · Icebergs2022-11-15 → 2022-11-16
    Icebergs reported in: a. A76A, 59-13.00S 049-11.00W
  13. HYDROLANT 2915/22 · Icebergs2022-11-14 → 2022-11-15
    Icebergs reported in: a. A64, 62-25.80S 053-27.60W
  14. HYDROLANT 2913/22 · Icebergs2022-11-14 → 2022-11-15
    Icebergs reported in: a. A76A, 59-14.00S 049-15.00W
  15. HYDROLANT 2906/22 · Icebergs2022-11-13 → 2022-11-14
    Icebergs reported in: a. A64, 62-25.80S 053-27.60W
  16. HYDROLANT 2896/22 · Icebergs2022-11-12 → 2022-11-13
    Icebergs reported in: a. A76A, 59-09.00S 049-07.00W
  17. HYDROLANT 2895/22 · Icebergs2022-11-12 → 2022-11-13
    Icebergs reported in: a. A64, 63-27.00S 053-45.00W
  18. HYDROLANT 2882/22 · Icebergs2022-11-11 → 2022-11-12
    Icebergs reported in: a. A76A, 59-08.00S 048-53.00W
  19. HYDROLANT 2881/22 · Icebergs2022-11-11 → 2022-11-12
    Icebergs reported in: a. A64, 63-27.00S 053-45.00W
  20. HYDROLANT 2873/22 · Icebergs2022-11-10 → 2022-11-11
    Icebergs reported in: a. A76A, 59-08.00S 048-59.00W

Sea boundaries: Flanders Marine Institute (2018), IHO Sea Areas v3, marineregions.org (CC BY 4.0). Not for navigation — follow official NAVAREA / coastal broadcasts.