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. HYDROPAC 3043/17 · Icebergs2017-09-06 → 2017-09-07
    Icebergs reported in: a. B22A, 74-04S 108-55W
  2. HYDROPAC 3031/17 · Icebergs2017-09-05 → 2017-09-06
    Icebergs reported in: a. B22A, 74-04S 108-55W
  3. HYDROPAC 3015/17 · Icebergs2017-09-04 → 2017-09-05
    Icebergs reported in: a. B22A, 74-04S 108-55W
  4. HYDROPAC 2993/17 · Icebergs2017-09-02 → 2017-09-03
    Icebergs reported in: a. B22A, 74-04S 108-55W
  5. HYDROPAC 2826/17 · Icebergs2017-08-20 → 2017-08-21
    Icebergs reported in: a. B22A, 74-04S 108-55W
  6. HYDROPAC 2818/17 · Icebergs2017-08-19 → 2017-08-20
    Icebergs reported in: a. B22A, 74-04S 108-55W
  7. HYDROPAC 2811/17 · Icebergs2017-08-18 → 2017-08-19
    Icebergs reported in: a. B22A, 74-04S 108-55W
  8. HYDROPAC 2777/17 · Icebergs2017-08-16 → 2017-08-17
    Icebergs reported in: a. B22A, 74-04S 108-55W
  9. HYDROPAC 2762/17 · Icebergs2017-08-15 → 2017-08-16
    Icebergs reported in: a. B22A, 74-04S 108-55W
  10. HYDROPAC 2757/17 · Icebergs2017-08-14 → 2017-08-15
    Icebergs reported in: a. B22A, 74-04S 108-55W
  11. HYDROPAC 2681/17 · Icebergs2017-08-07 → 2017-08-10
    Icebergs reported in: a. B22A, 74-04S 108-55W
  12. HYDROPAC 2515/17 · Icebergs2017-07-22 → 2017-07-25
    Icebergs reported in: a. B22A, 74-04S 108-55W
  13. HYDROLANT 1396/17 · Icebergs2017-05-02 → 2017-05-03
    Icebergs reported in: a. A61, 63-01S 030-10W
  14. HYDROLANT 1384/17 · Icebergs2017-05-01 → 2017-05-02
    Icebergs reported in: a. A61, 63-03S 030-16W
  15. HYDROLANT 1375/17 · Icebergs2017-04-30 → 2017-05-01
    Icebergs reported in: a. A61, 63-05S 030-20W
  16. HYDROLANT 1363/17 · Icebergs2017-04-29 → 2017-04-30
    Icebergs reported in: a. A61, 63-05S 030-20W
  17. HYDROLANT 1345/17 · Icebergs2017-04-28 → 2017-04-29
    Icebergs reported in: a. A61, 63-07S 030-20W
  18. HYDROLANT 1331/17 · Icebergs2017-04-27 → 2017-04-28
    Icebergs reported in: a. A61, 63-09S 030-21W
  19. HYDROLANT 1325/17 · Icebergs2017-04-26 → 2017-04-27
    Icebergs reported in: a. A61, 63-09S 030-25W
  20. HYDROLANT 1315/17 · Icebergs2017-04-25 → 2017-04-26
    Icebergs reported in: a. A61, 63-07S 030-26W

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