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 1379/22 · Icebergs2022-05-26 → 2022-05-26
    Icebergs reported in: a. A64, 65-47.40S 060-10.80W
  2. HYDROLANT 1376/22 · Icebergs2022-05-25 → 2022-05-26
    Icebergs reported in: a. A64, 65-47.40S 060-10.80W
  3. HYDROLANT 1373/22 · Icebergs2022-05-25 → 2022-05-26
    Icebergs reported in: a. A64, 65-47.40S 060-10.80W
  4. HYDROLANT 1369/22 · Icebergs2022-05-24 → 2022-05-25
    Icebergs reported in: a. A64, 65-47.40S 060-10.80W
  5. HYDROLANT 1358/22 · Icebergs2022-05-24 → 2022-05-25
    Icebergs reported in: a. A64, 65-47.40S 060-10.80W
  6. HYDROLANT 1349/22 · Icebergs2022-05-23 → 2022-05-24
    Icebergs reported in: a. A64, 65-47.40S 060-10.80W
  7. HYDROLANT 1345/22 · Icebergs2022-05-23 → 2022-05-24
    Icebergs reported in: a. A64, 65-47.40S 060-10.80W
  8. HYDROLANT 1341/22 · Icebergs2022-05-22 → 2022-05-23
    Icebergs reported in: a. A64, 65-47.40S 060-10.80W
  9. HYDROLANT 1333/22 · Icebergs2022-05-21 → 2022-05-22
    Icebergs reported in: a. A64, 65-46.80S 060-16.20W
  10. HYDROLANT 1326/22 · Icebergs2022-05-20 → 2022-05-21
    Icebergs reported in: a. A64, 65-46.80S 060-16.20W
  11. HYDROLANT 1316/22 · Icebergs2022-05-19 → 2022-05-20
    Icebergs reported in: a. A64, 65-46.80S 060-16.20W
  12. HYDROLANT 1313/22 · Icebergs2022-05-19 → 2022-05-20
    Icebergs reported in: a. A64, 65-46.80S 060-16.20W
  13. HYDROLANT 1309/22 · Icebergs2022-05-18 → 2022-05-19
    Icebergs reported in: a. A64, 65-46.80S 060-16.20W
  14. HYDROLANT 1302/22 · Icebergs2022-05-17 → 2022-05-18
    Icebergs reported in: a. A64, 65-46.80S 060-16.20W
  15. HYDROLANT 1294/22 · Icebergs2022-05-16 → 2022-05-17
    Icebergs reported in: a. A64, 65-46.80S 060-16.20W
  16. HYDROLANT 1290/22 · Icebergs2022-05-15 → 2022-05-16
    Icebergs reported in: a. A64, 65-46.80S 060-16.20W
  17. HYDROLANT 1288/22 · Icebergs2022-05-15 → 2022-05-15
    Icebergs reported in: a. A64, 65-46.80S 060-16.20W
  18. HYDROLANT 1284/22 · Icebergs2022-05-14 → 2022-05-15
    Icebergs reported in: a. A64, 65-46.80S 060-16.20W
  19. HYDROLANT 1278/22 · Icebergs2022-05-13 → 2022-05-14
    Icebergs reported in: a. A64, 65-46.80S 060-16.20W
  20. HYDROLANT 1270/22 · Icebergs2022-05-12 → 2022-05-13
    Icebergs reported in: a. A64, 65-46.80S 060-16.20W

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