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
- HYDROLANT 1116/17 · Icebergs2017-04-06 → 2017-04-07Icebergs reported in: a. A61, 63-18S 030-51W
- HYDROLANT 1103/17 · Icebergs2017-04-05 → 2017-04-06Icebergs reported in: a. A61, 63-16S 030-55W
- HYDROLANT 1093/17 · Icebergs2017-04-04 → 2017-04-05Icebergs reported in: a. A61, 63-16S 031-00W
- HYDROLANT 1078/17 · Icebergs2017-04-03 → 2017-04-04Icebergs reported in: a. A61, 63-14S 031-00W
- HYDROLANT 1074/17 · Icebergs2017-04-02 → 2017-04-03Icebergs reported in: a. A61, 63-14S 031-01W
- HYDROLANT 1065/17 · Icebergs2017-04-01 → 2017-04-02Icebergs reported in: a. A61, 63-22S 031-03W
- HYDROLANT 1051/17 · Icebergs2017-03-31 → 2017-04-01Icebergs reported in: a. A61, 63-22S 031-03W
- HYDROLANT 1033/17 · Icebergs2017-03-30 → 2017-03-31Icebergs reported in: a. A61, 63-22S 031-03W
- HYDROLANT 1021/17 · Icebergs2017-03-29 → 2017-03-30Icebergs reported in: a. A61, 63-25S 031-11W
- HYDROLANT 1006/17 · Icebergs2017-03-28 → 2017-03-29Icebergs reported in: a. A61, 63-25S 031-11W
- HYDROLANT 985/17 · Icebergs2017-03-27 → 2017-03-28Icebergs reported in: a. A61, 63-23S 031-12W
- HYDROLANT 975/17 · Icebergs2017-03-26 → 2017-03-27Icebergs reported in: a. A61, 63-24S 031-14W
- HYDROLANT 964/17 · Icebergs2017-03-25 → 2017-03-26Icebergs reported in: a. A61, 63-25S 031-22W
- HYDROLANT 954/17 · Icebergs2017-03-24 → 2017-03-25Icebergs reported in: a. A61, 63-25S 031-22W
- HYDROLANT 936/17 · Icebergs2017-03-23 → 2017-03-24Icebergs reported in: a. A61, 63-29S 031-29W
- HYDROLANT 927/17 · Icebergs2017-03-22 → 2017-03-23Icebergs reported in: a. A61, 63-29S 031-29W
- HYDROLANT 919/17 · Icebergs2017-03-21 → 2017-03-22Icebergs reported in: a. A61, 63-32S 031-40W
- HYDROLANT 906/17 · Icebergs2017-03-20 → 2017-03-21Icebergs reported in: a. A61, 63-33S 031-49W
- HYDROLANT 891/17 · Icebergs2017-03-19 → 2017-03-20Icebergs reported in: a. A61, 63-32S 031-56W
- HYDROLANT 883/17 · Icebergs2017-03-18 → 2017-03-19Icebergs reported in: a. A61, 63-32S 031-58W
Sea boundaries: Flanders Marine Institute (2018), IHO Sea Areas v3, marineregions.org (CC BY 4.0). Not for navigation — follow official NAVAREA / coastal broadcasts.