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 1670/22 · Icebergs2022-07-01 → 2022-07-02
    Icebergs reported in: a. A64, 65-32.40S 059-28.20W
  2. HYDROLANT 1659/22 · Icebergs2022-06-30 → 2022-07-01
    Icebergs reported in: a. A64, 65-32.40S 059-28.20W
  3. HYDROLANT 1654/22 · Icebergs2022-06-29 → 2022-06-30
    Icebergs reported in: a. A64, 65-32.40S 059-28.20W
  4. HYDROLANT 1645/22 · Icebergs2022-06-28 → 2022-06-29
    Icebergs reported in: a. A64, 65-32.40S 059-28.20W
  5. HYDROLANT 1640/22 · Icebergs2022-06-28 → 2022-06-29
    Icebergs reported in: a. A64, 65-41.40S 059-36.00W
  6. HYDROLANT 1633/22 · Icebergs2022-06-26 → 2022-06-27
    Icebergs reported in: a. A64, 65-41.40S 059-36.00W
  7. HYDROLANT 1623/22 · Icebergs2022-06-25 → 2022-06-26
    Icebergs reported in: a. A64, 65-41.40S 059-36.00W
  8. HYDROLANT 1615/22 · Icebergs2022-06-24 → 2022-06-25
    Icebergs reported in: a. A64, 65-41.40S 059-36.00W
  9. HYDROLANT 1602/22 · Icebergs2022-06-23 → 2022-06-24
    Icebergs reported in: a. A64, 65-41.40S 059-36.00W
  10. HYDROLANT 1597/22 · Icebergs2022-06-22 → 2022-06-23
    Icebergs reported in: a. A64, 65-41.40S 059-36.00W
  11. HYDROLANT 1589/22 · Icebergs2022-06-21 → 2022-06-22
    Icebergs reported in: a. A64, 65-41.40S 059-36.00W
  12. HYDROLANT 1581/22 · Icebergs2022-06-20 → 2022-06-21
    Icebergs reported in: a. A64, 65-41.40S 059-36.00W
  13. HYDROARC 128/22 · Icebergs2022-06-20 → 2022-06-21
    Icebergs reported in: a. A64, 65-41.40S 059-36.00W
  14. HYDROLANT 1572/22 · Icebergs2022-06-19 → 2022-06-20
    Icebergs reported in: a. A64, 65-41.40S 059-36.00W
  15. HYDROLANT 1563/22 · Icebergs2022-06-18 → 2022-06-19
    Icebergs reported in: a. A64, 65-46.20S 059-47.40W
  16. HYDROLANT 1556/22 · Icebergs2022-06-17 → 2022-06-18
    Icebergs reported in: a. A64, 65-46.20S 059-47.40W
  17. HYDROLANT 1545/22 · Icebergs2022-06-16 → 2022-06-17
    Icebergs reported in: a. A64, 65-46.20S 059-47.40W
  18. HYDROLANT 1530/22 · Icebergs2022-06-15 → 2022-06-16
    Icebergs reported in: a. A64, 65-46.20S 059-47.40W
  19. HYDROLANT 1526/22 · Icebergs2022-06-14 → 2022-06-15
    Icebergs reported in: a. A64, 65-46.20S 059-47.40W
  20. HYDROLANT 1517/22 · Icebergs2022-06-13 → 2022-06-14
    Icebergs reported in: a. A64, 65-46.20S 059-47.40W

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