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 157/20 · Icebergs2020-01-16 → 2020-01-17Icebergs reported in: a. A64, 69-44S 060-59W
- HYDROLANT 148/20 · Icebergs2020-01-15 → 2020-01-16Icebergs reported in: a. A64, 69-44S 060-59W
- HYDROLANT 131/20 · Icebergs2020-01-14 → 2020-01-15Icebergs reported in: a. A64, 69-44S 060-59W
- HYDROLANT 101/20 · Icebergs2020-01-12 → 2020-01-13Icebergs reported in: a. A64, 70-13S 061-38W
- HYDROLANT 97/20 · Icebergs2020-01-11 → 2020-01-12Icebergs reported in: a. A64, 70-13S 061-38W
- HYDROLANT 85/20 · Icebergs2020-01-10 → 2020-01-11Icebergs reported in: a. A64, 69-44S 060-59W
- HYDROLANT 74/20 · Icebergs2020-01-09 → 2020-01-10Icebergs reported in: a. A64, 69-44S 060-59W
- HYDROLANT 66/20 · Icebergs2020-01-08 → 2020-01-09Icebergs reported in: a. A64, 69-44S 060-59W
- HYDROLANT 40/20 · Icebergs2020-01-05 → 2020-01-06Icebergs reported in: a. A64, 69-44S 060-59W
- HYDROLANT 33/20 · Icebergs2020-01-03 → 2020-01-04Icebergs reported in: a. A64, 69-44S 060-59W
- HYDROLANT 24/20 · Icebergs2020-01-02 → 2020-01-03Icebergs reported in: a. A64, 69-44S 060-59W
- HYDROLANT 8/20 · Icebergs2020-01-01 → 2020-01-02Icebergs reported in: a. A64, 69-44S 060-59W
- HYDROLANT 4028/19 · Icebergs2019-12-31 → 2020-01-01Icebergs reported in: a. A64, 69-44S 060-59W
- HYDROLANT 4012/19 · Icebergs2019-12-30 → 2019-12-31Icebergs reported in: a. A64, 69-44S 060-59W
- HYDROLANT 3995/19 · Icebergs2019-12-29 → 2019-12-30Icebergs reported in: a. A64, 69-44S 060-59W
- HYDROLANT 3989/19 · Wrecks2019-12-28 → 2020-01-15Uncovered rock reported in 62-27.4S 060-16.8W
- HYDROLANT 3987/19 · Icebergs2019-12-28 → 2019-12-29Icebergs reported in: a. A64, 69-44S 060-59W
- HYDROLANT 3978/19 · Icebergs2019-12-27 → 2019-12-28Icebergs reported in: a. A64, 69-44S 060-59W
- HYDROLANT 3951/19 · Icebergs2019-12-24 → 2019-12-25Icebergs reported in: a. A64, 69-44S 060-59W
- HYDROLANT 3937/19 · Icebergs2019-12-23 → 2019-12-24Icebergs reported in: a. A64, 69-44S 060-59W
Sea boundaries: Flanders Marine Institute (2018), IHO Sea Areas v3, marineregions.org (CC BY 4.0). Not for navigation — follow official NAVAREA / coastal broadcasts.