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 2080/22 · Icebergs2022-08-22 → 2022-08-23
    Icebergs reported in: a. A76A, 61-40.00S 052-48.00W
  2. HYDROLANT 2072/22 · Icebergs2022-08-21 → 2022-08-22
    Icebergs reported in: a. A76A, 61-41.00S 052-53.00W
  3. HYDROLANT 2071/22 · Icebergs2022-08-21 → 2022-08-22
    Icebergs reported in: a. A64, 65-17.00S 058-15.00W
  4. HYDROLANT 2070/22 · Icebergs2022-08-20 → 2022-08-21
    Icebergs reported in: a. A64, 65-19.80S 058-19.20W
  5. HYDROLANT 2069/22 · Icebergs2022-08-20 → 2022-08-21
    Icebergs reported in: a. A76A, 61-44.00S 052-58.00W
  6. HYDROLANT 2061/22 · Icebergs2022-08-19 → 2022-08-20
    Icebergs reported in: a. A64, 65-19.80S 058-19.20W
  7. HYDROLANT 2059/22 · Icebergs2022-08-19 → 2022-08-20
    Icebergs reported in: a. A76A, 61-48.00S 053-04.00W
  8. HYDROLANT 2056/22 · Icebergs2022-08-19 → 2022-08-20
    Icebergs reported in: a. A64, 65-19.80S 058-19.20W
  9. HYDROLANT 2051/22 · Icebergs2022-08-18 → 2022-08-19
    Icebergs reported in: a. A76A, 61-49.00S 053-00.00W
  10. HYDROLANT 2047/22 · Icebergs2022-08-17 → 2022-08-18
    Icebergs reported in: a. A76A, 61-49.00S 053-09.00W
  11. HYDROLANT 2046/22 · Icebergs2022-08-17 → 2022-08-18
    Icebergs reported in: a. A64, 65-19.80S 058-19.20W
  12. HYDROLANT 2037/22 · Icebergs2022-08-16 → 2022-08-17
    Icebergs reported in: a. A76A, 61-52.00S 053-09.00W
  13. HYDROLANT 2036/22 · Icebergs2022-08-16 → 2022-08-17
    Icebergs reported in: a. A64, 65-19.80S 058-29.40W
  14. HYDROLANT 2029/22 · Icebergs2022-08-15 → 2022-08-16
    South shetland islands
  15. HYDROLANT 2027/22 · Icebergs2022-08-15 → 2022-08-16
    Icebergs reported in: a. A76A, 61-56.00S 053-18.00W
  16. HYDROLANT 2021/22 · Icebergs2022-08-14 → 2022-08-15
    Icebergs reported in: a. A76A, 61-58.00S 053-33.00W
  17. HYDROLANT 2020/22 · Icebergs2022-08-14 → 2022-08-15
    Icebergs reported in: a. A64, 65-19.80S 058-29.40W
  18. HYDROLANT 2014/22 · Icebergs2022-08-13 → 2022-08-14
    Icebergs reported in: a. A64, 65-19.80S 058-29.40W
  19. HYDROLANT 2013/22 · Icebergs2022-08-13 → 2022-08-14
    Icebergs reported in: a. A76A, 62-03.00S 053-34.00W
  20. HYDROLANT 2004/22 · Icebergs2022-08-13 → 2022-08-16
    Iceberg reported in 62-06.00S 054-54.00W

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