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 1751/20 · Icebergs2020-05-24 → 2020-05-25Icebergs reported in: a. A68A, 60-18S 049-30W
- HYDROLANT 1745/20 · Icebergs2020-05-23 → 2020-05-24Icebergs reported in: a. A64, 69-44S 060-57W
- HYDROLANT 1743/20 · Icebergs2020-05-23 → 2020-05-24Icebergs reported in: a. A68A, 60-20S 049-36W
- HYDROLANT 1735/20 · Icebergs2020-05-22 → 2020-05-23Icebergs reported in: a. A68A, 60-20S 049-36W
- HYDROLANT 1734/20 · Icebergs2020-05-22 → 2020-05-23Icebergs reported in: a. A64, 69-44S 060-57W
- HYDROLANT 1721/20 · Icebergs2020-05-21 → 2020-05-22Icebergs reported in: a. A68A, 60-23S 049-50W
- HYDROLANT 1720/20 · Icebergs2020-05-21 → 2020-05-22Icebergs reported in: a. A64, 69-44S 060-57W
- HYDROLANT 1712/20 · Icebergs2020-05-20 → 2020-05-21Icebergs reported in: a. A64, 69-44S 060-57W
- HYDROLANT 1710/20 · Icebergs2020-05-20 → 2020-05-21Icebergs reported in: a. A68A, 60-25S 050-00W
- HYDROLANT 1699/20 · Icebergs2020-05-19 → 2020-05-20Icebergs reported in: a. A64, 69-44S 060-57W
- HYDROLANT 1698/20 · Icebergs2020-05-19 → 2020-05-20Icebergs reported in: a. A68A, 60-25S 049-55W
- HYDROLANT 1691/20 · Icebergs2020-05-18 → 2020-05-19Icebergs reported in: a. A68A, 60-23S 050-00W
- HYDROLANT 1690/20 · Icebergs2020-05-18 → 2020-05-19Icebergs reported in: a. A64, 69-44S 060-57W
- HYDROLANT 1683/20 · Icebergs2020-05-17 → 2020-05-18Icebergs reported in: a. A64, 69-44S 060-57W
- HYDROLANT 1682/20 · Icebergs2020-05-17 → 2020-05-18Icebergs reported in: a. A68A, 60-24S 049-59W
- HYDROLANT 1671/20 · Icebergs2020-05-16 → 2020-05-17Icebergs reported in: a. A64, 69-44S 060-57W
- HYDROLANT 1670/20 · Icebergs2020-05-16 → 2020-05-17Icebergs reported in: a. A68A, 60-27S 049-58W
- HYDROLANT 1658/20 · Icebergs2020-05-15 → 2020-05-16Icebergs reported in: a. A68A, 60-25S 049-58W
- HYDROLANT 1657/20 · Icebergs2020-05-15 → 2020-05-16Icebergs reported in: a. A64, 69-44S 060-57W
- HYDROLANT 1643/20 · Icebergs2020-05-14 → 2020-05-15Icebergs reported in: a. A64, 69-44S 060-57W
Sea boundaries: Flanders Marine Institute (2018), IHO Sea Areas v3, marineregions.org (CC BY 4.0). Not for navigation — follow official NAVAREA / coastal broadcasts.