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 1106/20 · Icebergs2020-03-25 → 2020-03-26Icebergs reported in: a. A64, 69-44S 060-59W
- HYDROLANT 1089/20 · Icebergs2020-03-24 → 2020-03-25Icebergs reported in: a. A64, 69-44S 060-59W
- HYDROLANT 1076/20 · Icebergs2020-03-23 → 2020-03-24Icebergs reported in: a. A64, 69-44S 060-59W
- HYDROLANT 1067/20 · Icebergs2020-03-22 → 2020-03-23Icebergs reported in: a. A64, 69-44S 060-59W
- HYDROLANT 1061/20 · Icebergs2020-03-21 → 2020-03-22Icebergs reported in: a. A64, 69-44S 060-59W
- HYDROLANT 1051/20 · Icebergs2020-03-20 → 2020-03-21Icebergs reported in: a. A64, 69-44S 060-59W
- HYDROLANT 1040/20 · Icebergs2020-03-19 → 2020-03-20Icebergs reported in: a. A64, 69-44S 060-59W
- HYDROLANT 1017/20 · Icebergs2020-03-17 → 2020-03-18Icebergs reported in: a. A64, 69-44S 060-59W
- HYDROLANT 985/20 · Icebergs2020-03-15 → 2020-03-16Icebergs reported in: a. A64, 69-44S 060-59W
- HYDROLANT 978/20 · Icebergs2020-03-14 → 2020-03-15Icebergs reported in: a. A64, 69-44S 060-59W
- HYDROLANT 953/20 · Icebergs2020-03-13 → 2020-03-14Icebergs reported in: a. A64, 69-44S 060-59W
- HYDROPAC 841/20 · Missiles2020-03-13 → 2020-03-17Hazardous operations, space debris 1800Z to 2000Z daily 16 and 17 mar in area bound by 59-42.6S 165-49.2E,…
- HYDROLANT 944/20 · Icebergs2020-03-12 → 2020-03-13Icebergs reported in: a. A64, 69-44S 060-59W
- HYDROLANT 934/20 · Icebergs2020-03-11 → 2020-03-12Icebergs reported in: a. A64, 69-44S 060-59W
- HYDROLANT 908/20 · Icebergs2020-03-09 → 2020-03-10Icebergs reported in: a. A64, 69-44S 060-59W
- HYDROLANT 887/20 · Icebergs2020-03-07 → 2020-03-08Icebergs reported in: a. A64, 69-44S 060-59W
- HYDROLANT 879/20 · Icebergs2020-03-06 → 2020-03-07Icebergs reported in: a. A64, 69-44S 060-59W
- HYDROLANT 863/20 · Icebergs2020-03-05 → 2020-03-06Icebergs reported in: a. A64, 69-44S 060-59W
- HYDROLANT 808/20 · Icebergs2020-03-02 → 2020-03-03Icebergs reported in: a. A64, 69-44S 060-59W
- HYDROLANT 776/20 · Icebergs2020-03-01 → 2020-03-02Icebergs 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.