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. HYDROLANT 322/19 · Icebergs2019-01-31 → 2019-02-01
    Icebergs reported in: a. B09F, 60-22S 053-49W
  2. HYDROLANT 295/19 · Icebergs2019-01-29 → 2019-01-30
    Icebergs reported in: a. B09F, 60-22S 053-49W
  3. HYDROLANT 284/19 · Icebergs2019-01-28 → 2019-01-29
    Icebergs reported in: a. B09F, 60-22S 053-49W
  4. HYDROLANT 267/19 · Icebergs2019-01-26 → 2019-01-27
    Icebergs reported in: a. B09F, 60-35S 053-56W
  5. HYDROLANT 258/19 · Icebergs2019-01-25 → 2019-01-26
    Iceberg reported in: a. B09F, 60-35S 053-56W
  6. HYDROLANT 236/19 · Icebergs2019-01-24 → 2019-01-25
    Iceberg reported in: a. B09F, 60-35S 053-56W
  7. HYDROLANT 213/19 · Icebergs2019-01-22 → 2019-01-23
    Iceberg reported in: a. B09F, 60-35S 053-56W
  8. HYDROLANT 194/19 · Icebergs2019-01-21 → 2019-01-22
    Iceberg reported in: a. B09F, 60-50S 055-05W
  9. HYDROLANT 187/19 · Surveys2019-01-21 → 2019-02-05
    Survey operations in progress until 04 feb by M/V sarmiento de gamboa in area bound by 62-16S 058-26W,…
  10. HYDROLANT 180/19 · Icebergs2019-01-20 → 2019-01-21
    Iceberg reported in: a. B09F, 60-35S 053-56W
  11. HYDROLANT 175/19 · Icebergs2019-01-19 → 2019-01-20
    Iceberg reported in: a. B09F, 60-50S 055-05W
  12. HYDROLANT 170/19 · Icebergs2019-01-18 → 2019-01-19
    Iceberg reported in: a. B09F, 60-50S 055-05W
  13. HYDROLANT 154/19 · Icebergs2019-01-17 → 2019-01-18
    Iceberg reported in: a. B09F, 60-50S 055-05W
  14. HYDROLANT 132/19 · Icebergs2019-01-15 → 2019-01-16
    Iceberg reported in: a. B09F, 60-50S 055-05W
  15. HYDROLANT 119/19 · Icebergs2019-01-14 → 2019-01-15
    Iceberg reported in: a. B09F, 60-50S 055-05W
  16. HYDROLANT 56/19 · Icebergs2019-01-06 → 2019-01-07
    Icebergs reported in: a. B09F, 61-17S 052-27W
  17. HYDROLANT 49/19 · Icebergs2019-01-05 → 2019-01-06
    Icebergs reported in: a. B09F, 61-17S 052-27W
  18. HYDROLANT 32/19 · Icebergs2019-01-04 → 2019-01-05
    Icebergs reported in: a. B09F, 61-17S 052-27W
  19. HYDROLANT 23/19 · Icebergs2019-01-03 → 2019-01-04
    Icebergs reported in: a. B09F, 61-17S 052-27W
  20. HYDROLANT 1/19 · Nav aids2019-01-01 → 2019-03-15
    Destacamento light 60-44.2S 044-44.3W unlit

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