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 2658/22 · Icebergs2022-10-19 → 2022-10-19
    Icebergs reported in: a. A76A, 60-44.00S 052-23.00W
  2. HYDROLANT 2657/22 · Icebergs2022-10-19 → 2022-10-20
    Icebergs reported in: a. A64, 64-29.40S 054-54.60W
  3. HYDROLANT 2656/22 · Icebergs2022-10-19 → 2022-10-20
    Icebergs reported in: a. A76A, 59-03.00S 050-17.00W
  4. HYDROLANT 2649/22 · Icebergs2022-10-18 → 2022-10-19
    Icebergs reported in: a. A76A, 59-09.00S 050-19.00W
  5. HYDROLANT 2648/22 · Icebergs2022-10-18 → 2022-10-19
    Icebergs reported in: a. A64, 64-29.40S 054-54.60W
  6. HYDROLANT 2647/22 · Icebergs2022-10-18 → 2022-10-18
    Icebergs reported in: a. A76A, 59-17.00S 050-27.00W
  7. HYDROLANT 2641/22 · Icebergs2022-10-17 → 2022-10-18
    Icebergs reported in: a. A64, 64-39.60S 055-09.60W
  8. HYDROLANT 2639/22 · Icebergs2022-10-17 → 2022-10-18
    Icebergs reported in: a. A76A, 59-23.00S 050-24.00W
  9. HYDROLANT 2635/22 · Icebergs2022-10-16 → 2022-10-17
    Icebergs reported in: a. A76A, 59-23.00S 050-24.00W
  10. HYDROLANT 2634/22 · Icebergs2022-10-16 → 2022-10-17
    Icebergs reported in: a. A64, 64-39.60S 055-09.60W
  11. HYDROLANT 2629/22 · Icebergs2022-10-15 → 2022-10-16
    Icebergs reported in: a. A76A, 59-23.00S 050-24.00W
  12. HYDROLANT 2628/22 · Icebergs2022-10-15 → 2022-10-16
    Icebergs reported in: a. A64, 64-39.60S 055-09.60W
  13. HYDROLANT 2613/22 · Icebergs2022-10-14 → 2022-10-15
    Icebergs reported in: a. A64, 64-39.60S 055-09.60W
  14. HYDROLANT 2612/22 · Icebergs2022-10-14 → 2022-10-15
    Icebergs reported in: a. A76A, 59-31.00S 050-24.00W
  15. HYDROLANT 2610/22 · Icebergs2022-10-14 → 2022-10-14
    Icebergs reported in: a. A64, 64-39.60S 055-09.60W
  16. HYDROLANT 2603/22 · Icebergs2022-10-13 → 2022-10-14
    Icebergs reported in: a. A64, 64-39.60S 055-09.60W
  17. HYDROLANT 2602/22 · Icebergs2022-10-13 → 2022-10-14
    Icebergs reported in: a. A76A, 59-36.00S 050-25.00W
  18. HYDROLANT 2595/22 · Icebergs2022-10-12 → 2022-10-13
    Icebergs reported in: a. A76A, 59-41.00S 050-27.00W
  19. HYDROLANT 2594/22 · Icebergs2022-10-12 → 2022-10-13
    Icebergs reported in: a. A64, 64-39.60S 055-09.60W
  20. HYDROLANT 2584/22 · Icebergs2022-10-11 → 2022-10-12
    Icebergs reported in: a. A64, 64-39.60S 055-09.60W

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