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 493/14 · Surveys2014-02-18 → 2014-02-19
    Oceanographic operations in progress until further notice by M/V puerto deseado vicinity 60-08.6S 044-47.6W
  2. HYDROLANT 484/14 · Surveys2014-02-17 → 2014-02-18
    Oceanographic operations in progress until further notice by M/V puerto deseado vicinity 60-36.4S 043-58.5W
  3. HYDROPAC 405/14 · Icebergs2014-02-10 → 2014-02-13
    Iceberg B17A reported in 63-12S 050-30W on 10 feb
  4. HYDROPAC 337/14 · Surveys2014-02-02 → 2014-02-03
    Oceanographic operations in progress until further notice by M/V ara puerto deseado vicinity 63-19.7S…
  5. HYDROPAC 330/14 · Surveys2014-02-01 → 2014-02-02
    Oceanographic operations in progress until further notice by M/V ara puerto deseado vicinity 64-52.6S…
  6. HYDROPAC 320/14 · Surveys2014-01-31 → 2014-02-01
    Oceanographic operations in progress until further notice by M/V ara puerto deseado vicinity 64-14.7S…
  7. HYDROPAC 307/14 · Surveys2014-01-30 → 2014-01-31
    Oceanographic operations in progress until further notice by M/V puerto deseado vicinity 63-53.9S 062-46.1W
  8. HYDROPAC 304/14 · Surveys2014-01-29 → 2014-01-30
    Oceanographic operations in progress until further notice by M/V puerto deseado vicinity 62-21.9S 058-44.0W
  9. HYDROPAC 297/14 · Icebergs2014-01-29 → 2014-02-01
    Iceberg reported in 63-55.97S 063-15.40W
  10. HYDROPAC 281/14 · Surveys2014-01-28 → 2014-01-29
    Oceanographic operations in progress until further notice by M/V puerto deseado vicinity 62-19.1S 059-10.2W
  11. HYDROPAC 278/14 · Surveys2014-01-27 → 2014-01-28
    Oceanographic operations in progress until further notice by M/V puerto deseado vicinity 62-59.5S 060-31.9W
  12. HYDROPAC 271/14 · Surveys2014-01-27 → 2014-01-27
    Oceanographic operations in progress until further notice by M/V puerto deseado vicinity 62-19.1S 059-10.2W
  13. HYDROPAC 3636/13 · Nav aids2013-11-22 → 2014-09-20
    Antarctica
  14. HYDROPAC 3635/13 · Nav aids2013-11-22 → 2014-09-20
    Antarctica
  15. HYDROPAC 1121/13 · Missiles2013-04-22 → 2013-04-27
    Space debris
  16. HYDROPAC 1118/13 · Derelicts2013-04-21 → 2013-04-23
    Derelict F/V kay xin on fire and adrift in 62-29.0S 057-40.0W
  17. HYDROPAC 1112/13 · Derelicts2013-04-21 → 2013-04-21
    Derelict F/V kay xin on fire and adrift in 62-32.75S 059-25.23W
  18. HYDROPAC 1102/13 · Derelicts2013-04-20 → 2013-04-21
    Derelict F/V kayxin on fire and adrift vicinity 62-37.35S 059-44.26W
  19. HYDROPAC 1071/13 · Derelicts2013-04-17 → 2013-04-20
    Derelict F/V kayxin on fire and adrift vicinity 63-07S 058-57W
  20. HYDROPAC 462/13 · Nav aids2013-02-15 → 2013-04-06
    South Shetland Islands

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