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 2469/22 · Icebergs2022-09-29 → 2022-10-02
    Iceberg reported in vicinity 61-00.00S 053-00.00W
  2. HYDROLANT 2463/22 · Icebergs2022-09-28 → 2022-09-29
    Icebergs reported in: a. A64, 64-42.00S 055-48.00W
  3. HYDROLANT 2456/22 · Icebergs2022-09-27 → 2022-09-28
    Icebergs reported in: a. A64, 64-42.00S 055-48.00W
  4. HYDROLANT 2438/22 · Icebergs2022-09-26 → 2022-09-27
    Icebergs reported in: a. A64, 64-42.00S 055-48.00W
  5. HYDROLANT 2427/22 · Icebergs2022-09-25 → 2022-09-26
    Icebergs reported in: a. A64, 64-42.00S 055-48.00W
  6. HYDROLANT 2418/22 · Icebergs2022-09-24 → 2022-09-25
    Icebergs reported in: a. A64, 64-42.00S 055-48.00W
  7. HYDROLANT 2407/22 · Icebergs2022-09-23 → 2022-09-24
    Icebergs reported in: a. A64, 64-51.00S 056-35.40W
  8. HYDROLANT 2399/22 · Icebergs2022-09-22 → 2022-09-23
    Icebergs reported in: a. A64, 64-51.00S 056-35.40W
  9. HYDROLANT 2397/22 · Icebergs2022-09-22 → 2022-09-25
    Iceberg reported in vicinity 61-20.40S 053-10.70W
  10. HYDROLANT 2395/22 · Icebergs2022-09-21 → 2022-09-22
    Icebergs reported in: a. A64, 64-51.00S 056-35.40W
  11. HYDROLANT 2385/22 · Icebergs2022-09-20 → 2022-09-21
    Icebergs reported in: a. A64, 64-07.20S 056-19.20W
  12. HYDROLANT 2371/22 · Icebergs2022-09-19 → 2022-09-20
    Icebergs reported in: a. A64, 64-57.00S 056-58.80W
  13. HYDROLANT 2360/22 · Icebergs2022-09-18 → 2022-09-19
    Icebergs reported in: a. A64, 64-57.00S 056-58.80W
  14. HYDROLANT 2354/22 · Icebergs2022-09-17 → 2022-09-18
    Icebergs reported in: a. A64, 64-57.00S 056-58.80W
  15. HYDROLANT 2349/22 · Icebergs2022-09-16 → 2022-09-17
    Icebergs reported in: a. A64, 64-57.00S 056-58.80W
  16. HYDROLANT 2335/22 · Icebergs2022-09-15 → 2022-09-16
    Icebergs reported in: a. A64, 65-07.20S 057-19.20W
  17. HYDROLANT 2320/22 · Icebergs2022-09-14 → 2022-09-15
    Icebergs reported in: a. A64, 65-07.20S 057-19.20W
  18. HYDROLANT 2311/22 · Icebergs2022-09-13 → 2022-09-14
    Icebergs reported in: a. A64, 65-07.20S 057-19.20W
  19. HYDROLANT 2297/22 · Icebergs2022-09-12 → 2022-09-13
    Icebergs reported in: a. A64, 65-07.20S 057-19.20W
  20. HYDROLANT 2287/22 · Icebergs2022-09-11 → 2022-09-12
    Icebergs reported in: a. A64, 65-07.20S 057-19.20W

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