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 2289/19 · Icebergs2019-07-26 → 2019-07-27
    Icebergs reported in: a. A64, 69-44S 060-59W
  2. HYDROLANT 2271/19 · Icebergs2019-07-25 → 2019-07-26
    Icebergs reported in: a. A64, 69-44S 060-59W
  3. HYDROLANT 2258/19 · Icebergs2019-07-24 → 2019-07-25
    Icebergs reported in: a. A64, 69-44S 060-59W
  4. HYDROLANT 2250/19 · Icebergs2019-07-23 → 2019-07-24
    Icebergs reported in: a. A64, 69-44S 060-59W
  5. HYDROLANT 2238/19 · Icebergs2019-07-22 → 2019-07-23
    Icebergs reported in: a. A64, 69-44S 060-59W
  6. HYDROLANT 2219/19 · Icebergs2019-07-21 → 2019-07-22
    Icebergs reported in: a. A64, 69-44S 060-59W
  7. HYDROLANT 2213/19 · Icebergs2019-07-20 → 2019-07-21
    Icebergs reported in: a. A64, 69-44S 060-59W
  8. HYDROLANT 2200/19 · Icebergs2019-07-19 → 2019-07-20
    Icebergs reported in: a. A64, 69-44S 060-59W
  9. HYDROLANT 2145/19 · Icebergs2019-07-15 → 2019-07-16
    Icebergs reported in: a. A64, 69-44S 060-59W
  10. HYDROLANT 2135/19 · Icebergs2019-07-14 → 2019-07-15
    Icebergs reported in: a. A64, 69-44S 060-59W
  11. HYDROLANT 2123/19 · Icebergs2019-07-13 → 2019-07-14
    Icebergs reported in: a. A64, 69-44S 060-59W
  12. HYDROLANT 2093/19 · Icebergs2019-07-11 → 2019-07-12
    Icebergs reported in: a. A64, 69-44S 060-59W
  13. HYDROLANT 1810/19 · Icebergs2019-06-16 → 2019-06-17
    Icebergs reported in: a. A57A, 53-14S 046-22W
  14. HYDROLANT 1805/19 · Icebergs2019-06-15 → 2019-06-16
    Icebergs reported in: a. A57A, 53-14S 046-22W
  15. HYDROLANT 1793/19 · Icebergs2019-06-14 → 2019-06-15
    Icebergs reported in: a. A57A, 53-14S 046-22W
  16. HYDROLANT 1772/19 · Icebergs2019-06-12 → 2019-06-13
    Icebergs reported in: a. A57A, 53-14S 046-22W
  17. HYDROLANT 1766/19 · Icebergs2019-06-11 → 2019-06-12
    Icebergs reported in: a. A57A, 53-14S 046-22W
  18. HYDROLANT 1755/19 · Icebergs2019-06-10 → 2019-06-11
    Icebergs reported in: a. A57A, 53-14S 046-22W
  19. HYDROLANT 1750/19 · Icebergs2019-06-09 → 2019-06-10
    Icebergs reported in: a. A57A, 53-14S 046-22W
  20. HYDROLANT 1739/19 · Icebergs2019-06-08 → 2019-06-09
    Icebergs reported in: a. A57A, 53-14S 046-22W

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