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 866/17 · Icebergs2017-03-17 → 2017-03-18Icebergs reported in: a. A61, 63-33S 032-00W
- HYDROLANT 853/17 · Icebergs2017-03-16 → 2017-03-17Icebergs reported in: a. A61, 63-33S 032-04W
- HYDROLANT 837/17 · Icebergs2017-03-15 → 2017-03-16Icebergs reported in: a. A61, 63-34S 032-08W
- HYDROLANT 823/17 · Icebergs2017-03-14 → 2017-03-15Icebergs reported in: a. A61, 63-34S 032-12W
- HYDROLANT 813/17 · Icebergs2017-03-13 → 2017-03-14Icebergs reported in: a. A61, 63-34S 032-12W
- HYDROLANT 808/17 · Icebergs2017-03-12 → 2017-03-13Icebergs reported in: a. A61, 63-37S 032-16W
- HYDROLANT 801/17 · Icebergs2017-03-11 → 2017-03-12Icebergs reported in: a. A61, 63-38S 032-19W
- HYDROLANT 789/17 · Icebergs2017-03-10 → 2017-03-11Icebergs reported in: a. A61, 63-37S 032-23W
- HYDROLANT 777/17 · Icebergs2017-03-09 → 2017-03-10Icebergs reported in: a. A61, 63-33S 032-20W
- HYDROLANT 764/17 · Icebergs2017-03-08 → 2017-03-09Icebergs reported in: a. A61, 63-35S 032-22W
- HYDROLANT 753/17 · Icebergs2017-03-07 → 2017-03-08Icebergs reported in: a. A61, 63-34S 032-19W
- HYDROLANT 737/17 · Icebergs2017-03-06 → 2017-03-07Icebergs reported in: a. A61, 63-34S 032-12W
- HYDROLANT 732/17 · Icebergs2017-03-05 → 2017-03-06Icebergs reported in: a. A61, 63-34S 032-12W
- HYDROLANT 721/17 · Icebergs2017-03-04 → 2017-03-05Icebergs reported in: a. A61, 63-34S 032-12W
- HYDROLANT 706/17 · Icebergs2017-03-03 → 2017-03-04Icebergs reported in: a. A61, 63-34S 032-15W
- HYDROLANT 696/17 · Icebergs2017-03-03 → 2017-03-04Icebergs reported in: a. A61, 63-34S 032-20W
- HYDROLANT 686/17 · Icebergs2017-03-02 → 2017-03-03Icebergs reported in: a. A61, 63-34S 032-24W
- HYDROLANT 674/17 · Icebergs2017-03-01 → 2017-03-02Icebergs reported in: a. A61, 63-34S 032-24W
- HYDROLANT 661/17 · Icebergs2017-02-28 → 2017-03-01Icebergs reported in: a. A61, 63-35S 032-25W
- HYDROLANT 655/17 · Icebergs2017-02-27 → 2017-02-28Icebergs reported in: a. A61, 63-35S 032-33W
Sea boundaries: Flanders Marine Institute (2018), IHO Sea Areas v3, marineregions.org (CC BY 4.0). Not for navigation — follow official NAVAREA / coastal broadcasts.