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
- HYDROLANT 1570/26 · Icebergs2026-08-14Icebergs reported in the Scotia Sea and Antarctica at several coordinates; message cancels August 15, 2026, 06:32 UTC.
- HYDROPAC 2289/26 · Missiles2026-08-10Space debris hazard operations daily 13 to 26 August, 2100Z to 1800Z, in the South Pacific.
- HYDROLANT 1279/26 · Icebergs2026-06-30Icebergs are reported in South Atlantic, South Pacific, and Antarctica at positions A81, A84, A85, D33A, D33C; cancel message 011327Z July 26.
Longest in force
- HYDROLANT 1279/26 · Icebergs2026-06-30Icebergs are reported in South Atlantic, South Pacific, and Antarctica at positions A81, A84, A85, D33A, D33C; cancel message 011327Z July 26.
- HYDROPAC 2289/26 · Missiles2026-08-10Space debris hazard operations daily 13 to 26 August, 2100Z to 1800Z, in the South Pacific.
- HYDROLANT 1570/26 · Icebergs2026-08-14Icebergs 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
| Icebergs | 2,992 | 95% |
| Surveys | 42 | 1% |
| Missiles | 38 | 1% |
| Nav aids | 24 | 1% |
| Other | 18 | 1% |
| Wrecks | 12 | 0% |
| Derelicts | 4 | 0% |
| Exercises | 2 | 0% |
| Containers | 1 | 0% |
Archive · 3,130 cancelled
- HYDROPAC 4621/17 · Icebergs2017-12-28 → 2017-12-29Icebergs reported in: a. B22A, 74-04S 108-54W
- HYDROPAC 4602/17 · Icebergs2017-12-27 → 2017-12-28Icebergs reported in: a. B22A, 74-04S 108-54W
- HYDROPAC 4584/17 · Icebergs2017-12-26 → 2017-12-27Icebergs reported in: a. B22A, 74-04S 108-54W
- HYDROPAC 4541/17 · Icebergs2017-12-22 → 2017-12-23Icebergs reported in: a. B22A, 74-04S 108-54W
- HYDROPAC 4519/17 · Icebergs2017-12-21 → 2017-12-22Icebergs reported in: a. B22A, 74-04S 108-54W
- HYDROPAC 4496/17 · Icebergs2017-12-20 → 2017-12-21Icebergs reported in: a. B22A, 74-04S 108-54W
- HYDROPAC 4478/17 · Icebergs2017-12-19 → 2017-12-20Icebergs reported in: a. B22A, 74-04S 108-54W
- HYDROPAC 4458/17 · Icebergs2017-12-18 → 2017-12-19Icebergs reported in: a. B22A, 74-04S 108-54W
- HYDROPAC 4446/17 · Icebergs2017-12-17 → 2017-12-18Icebergs reported in: a. B22A, 74-04S 108-54W
- HYDROPAC 4434/17 · Icebergs2017-12-16 → 2017-12-17Icebergs reported in: a. B22A, 74-04S 108-54W
- HYDROPAC 4423/17 · Icebergs2017-12-15 → 2017-12-16Icebergs reported in: a. B22A, 74-04S 108-54W
- HYDROPAC 4401/17 · Missiles2017-12-14 → 2017-12-22Hazardous operations space debris 080130Z to 220530Z dec in area bound by 57-06.00S 179-54.00W, 56-42.00S…
- HYDROPAC 4390/17 · Icebergs2017-12-13 → 2017-12-14Icebergs reported in: a. B22A, 74-04S 108-54W
- HYDROPAC 4369/17 · Icebergs2017-12-12 → 2017-12-13Icebergs reported in: a. B22A, 74-04S 108-54W
- HYDROPAC 4309/17 · Icebergs2017-12-08 → 2017-12-09Icebergs reported in: a. B22A, 74-04S 108-54W
- HYDROPAC 4291/17 · Icebergs2017-12-07 → 2017-12-08Icebergs reported in: a. B22A, 74-04S 108-54W
- HYDROPAC 4275/17 · Icebergs2017-12-06 → 2017-12-07Icebergs reported in: a. B22A, 74-04S 108-54W
- HYDROPAC 4262/17 · Icebergs2017-12-05 → 2017-12-06Icebergs reported in: a. B22A, 74-04S 108-54W
- HYDROPAC 4250/17 · Icebergs2017-12-04 → 2017-12-05Icebergs reported in: a. B22A, 74-04S 108-54W
- HYDROPAC 4226/17 · Missiles2017-12-02 → 2017-12-14Hazardous operations space debris 080130Z to 170530Z dec in area bound by 57-06.00S 179-54.00W, 56-42.00S…
Sea boundaries: Flanders Marine Institute (2018), IHO Sea Areas v3, marineregions.org (CC BY 4.0). Not for navigation — follow official NAVAREA / coastal broadcasts.