Southern Ocean

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

in force
3
last 12 months
5
since 1999
3,133
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

Icebergs2,99295%
Surveys421%
Missiles381%
Nav aids241%
Other181%
Wrecks120%
Derelicts40%
Exercises20%
Containers10%

Archive · 3,130 cancelled

  1. HYDROPAC 3306/14 · Icebergs2014-11-06 → 2014-11-09
    Icebergs reported on 06 nov: a. B22A, 74-06S 108-55W
  2. HYDROLANT 1450/14 · Icebergs2014-06-10 → 2014-06-13
    Iceberg B17A, reported in 60-51S 054-02W
  3. HYDROPAC 1659/14 · Missiles2014-06-10 → 2014-06-15
    Space debris
  4. HYDROLANT 1384/14 · Icebergs2014-06-02 → 2014-06-05
    Iceberg B17A, reported in 60-34S 052-57W
  5. HYDROLANT 1331/14 · Icebergs2014-05-28 → 2014-05-31
    Iceberg B17A, reported in 60-46S 053-01W
  6. HYDROLANT 1213/14 · Icebergs2014-05-13 → 2014-05-16
    Iceberg B17A, reported in 61-24S 053-38W at 121400Z may
  7. HYDROLANT 1153/14 · Icebergs2014-05-06 → 2014-05-09
    Iceberg B17A, in 61-09S 051-11W
  8. HYDROLANT 1114/14 · Icebergs2014-04-30 → 2014-05-03
    Iceberg B17A, in 61-09S 051-11W
  9. HYDROLANT 1073/14 · Icebergs2014-04-23 → 2014-04-26
    Iceberg B17A, in 61-09S 051-11W
  10. HYDROLANT 1024/14 · Icebergs2014-04-16 → 2014-04-17
    Iceberg B17A, in 61-20S 051-12W
  11. HYDROLANT 956/14 · Icebergs2014-04-08 → 2014-04-11
    Iceberg B17A, reported in 61-52S 052-50W
  12. HYDROLANT 879/14 · Icebergs2014-03-31 → 2014-04-03
    Iceberg B17A, reported in 61-52S 052-50W at 311400Z mar
  13. HYDROLANT 844/14 · Icebergs2014-03-26 → 2014-03-29
    Iceberg B17A, reported in 62-14S 053-38W at 251400Z mar
  14. HYDROPAC 764/14 · Missiles2014-03-18 → 2014-03-25
    Space debris
  15. HYDROLANT 776/14 · Icebergs2014-03-18 → 2014-03-21
    Iceberg B17A, reported in 62-39S 053-30W on 17 mar
  16. HYDROLANT 752/14 · Surveys2014-03-15 → 2014-03-16
    Oceanographic operations in progress until further notice by M/V puerto deseado in 60-44.7S 044-43.5W
  17. HYDROLANT 738/14 · Surveys2014-03-14 → 2014-03-15
    Oceanographic operations in progress until further notice by M/V puerto deseado in 61-04.7S 043-27.9W
  18. HYDROLANT 727/14 · Surveys2014-03-13 → 2014-03-14
    Oceanographic operations in progress until further notice by M/V puerto deseado in 60-09.3S 044-53.6W
  19. HYDROLANT 722/14 · Surveys2014-03-12 → 2014-03-13
    Oceanographic operations in progress until further notice by M/V puerto deseado in 60-51.3S 045-43.6W
  20. HYDROLANT 714/14 · Surveys2014-03-11 → 2014-03-12
    Oceanographic operations in progress until further notice by M/V puerto deseado in 62-08.5S 043-42.9W

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