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 1827/22 · Icebergs2022-07-21 → 2022-07-22
    Icebergs reported in: a. A64, 65-31.20S 059-28.80W
  2. HYDROLANT 1817/22 · Icebergs2022-07-20 → 2022-07-21
    Icebergs reported in: a. A64, 65-31.20S 059-28.80W
  3. HYDROLANT 1809/22 · Icebergs2022-07-19 → 2022-07-20
    Icebergs reported in: a. A64, 65-31.20S 059-28.80W
  4. HYDROLANT 1795/22 · Icebergs2022-07-18 → 2022-07-19
    Icebergs reported in: a. A64, 65-31.20S 059-28.80W
  5. HYDROLANT 1793/22 · Icebergs2022-07-17 → 2022-07-18
    Icebergs reported in: a. A64, 65-31.20S 059-28.80W
  6. HYDROLANT 1786/22 · Icebergs2022-07-16 → 2022-07-17
    Icebergs reported in: a. A64, 65-31.20S 059-28.80W
  7. HYDROLANT 1774/22 · Icebergs2022-07-15 → 2022-07-16
    Icebergs reported in: a. A64, 65-31.20S 059-28.80W
  8. HYDROLANT 1766/22 · Icebergs2022-07-14 → 2022-07-15
    Icebergs reported in: a. A64, 65-31.20S 059-28.80W
  9. HYDROLANT 1763/22 · Icebergs2022-07-13 → 2022-07-14
    Icebergs reported in: a. A64, 65-31.20S 059-28.80W
  10. HYDROLANT 1756/22 · Icebergs2022-07-12 → 2022-07-13
    Icebergs reported in: a. A64, 65-31.20S 059-28.80W
  11. HYDROLANT 1751/22 · Icebergs2022-07-11 → 2022-07-12
    Icebergs reportes in: a. A64, 65-31.20S 059-28.80W
  12. HYDROLANT 1745/22 · Icebergs2022-07-10 → 2022-07-11
    Icebergs reported in: a. A64, 65-32.40S 059-30.00W
  13. HYDROLANT 1736/22 · Icebergs2022-07-09 → 2022-07-10
    Icebergs reported in: a. A64, 65-32.40S 059-30.00W
  14. HYDROLANT 1718/22 · Icebergs2022-07-07 → 2022-07-08
    Icebergs reported in: a. A64, 65-32.40S 059-30.00W
  15. HYDROLANT 1712/22 · Icebergs2022-07-06 → 2022-07-07
    Icebergs reported in: a. A64, 65-32.40S 059-30.00W
  16. HYDROLANT 1703/22 · Icebergs2022-07-05 → 2022-07-06
    Icebergs reported in: a. A64, 65-32.40S 059-30.00W
  17. HYDROLANT 1694/22 · Icebergs2022-07-04 → 2022-07-05
    Icebergs reported in: a. A64, 65-32.40S 059-30.00W
  18. HYDROPAC 1814/22 · Missiles2022-07-04 → 2022-07-08
    Hazardous operations, space debris 0900Z to 1100Z daily 07 and 08 jul in area bound by 59-42.60S 165-49.20E,…
  19. HYDROLANT 1683/22 · Icebergs2022-07-03 → 2022-07-04
    Icebergs reported in: a. A64, 65-32.40S 059-30.00W
  20. HYDROLANT 1676/22 · Icebergs2022-07-02 → 2022-07-03
    Icebergs reported in: a. A64, 65-32.40S 059-28.20W

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