Southern Ocean
IHO sea area 67 · -180° to 180° E, -86° to -60° N
- in force
- 3
- last 12 months
- 3
- since 1999
- 3,131
- 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 | 2,990 | 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 · 3,128 cancelled
- HYDROLANT 63/23 · Icebergs2023-01-08 → 2023-01-08Iceberg A69A, in 60-24.00S 049-28.00W
- HYDROLANT 61/23 · Icebergs2023-01-07 → 2023-01-08Icebergs reported in: a. A23A, 72-15.00S 046-37.00W
- HYDROLANT 55/23 · Icebergs2023-01-06 → 2023-01-07Icebergs reported in: a. A69A, 60-29.40S 049-36.60W
- HYDROLANT 46/23 · Icebergs2023-01-05 → 2023-01-06Icebergs reported in: a. A69A, 60-29.40S 049-36.60W
- HYDROLANT 35/23 · Icebergs2023-01-04 → 2023-01-05Icebergs reported in: a. A69A, 60-29.40S 049-36.60W
- HYDROLANT 25/23 · Icebergs2023-01-03 → 2023-01-04Icebergs reported in: a. A69A, 60-29.40S 049-36.60W
- HYDROLANT 15/23 · Icebergs2023-01-02 → 2023-01-03Icebergs reported in: a. A69A, 60-29.40S 049-36.60W
- HYDROLANT 3340/22 · Icebergs2022-12-31 → 2023-01-01Icebergs reported in: a. A69A, 60-30.00S 049-34.20W
- HYDROLANT 3332/22 · Icebergs2022-12-30 → 2022-12-31Icebergs reported in: a. A69A, 60-30.00S 049-34.20W
- HYDROLANT 3317/22 · Icebergs2022-12-28 → 2022-12-29Icebergs reported in: a. A69A, 60-30.00S 049-34.20W
- HYDROLANT 3309/22 · Icebergs2022-12-27 → 2022-12-28Icebergs reported in: a. A69A, 60-30.00S 049-34.20W
- HYDROLANT 3302/22 · Icebergs2022-12-26 → 2022-12-27Icebergs reported in: a. A69A, 60-30.00S 049-34.20W
- HYDROLANT 3300/22 · Icebergs2022-12-25 → 2022-12-26Icebergs reported in: a. A69A, 60-30.00S 049-34.20W
- HYDROLANT 3290/22 · Icebergs2022-12-24 → 2022-12-25Icebergs reported in: a. 60-37.20S 050-01.80W
- HYDROLANT 3284/22 · Icebergs2022-12-23 → 2022-12-24Icebergs reported in: a. A69A, 60-37.20S 050-01.80W
- HYDROLANT 3278/22 · Wrecks2022-12-22 → 2023-11-2612 meter shoals reported in: a. 64-30.90S 062-09.30W
- HYDROLANT 3276/22 · Icebergs2022-12-22 → 2022-12-23Icebergs reported in: a. A69A, 60-37.20S 050-01.80W
- HYDROLANT 3268/22 · Icebergs2022-12-21 → 2022-12-22Icebergs reported in: a. A69A, 60-37.20S 050-01.80W
- HYDROLANT 3256/22 · Icebergs2022-12-20 → 2022-12-21Icebergs reported in: a. A69A, 60-37.20S 050-01.80W
- HYDROLANT 3241/22 · Icebergs2022-12-19 → 2022-12-20Icebergs reported in: a. A64, 60-31.80S 049-33.60W
Sea boundaries: Flanders Marine Institute (2018), IHO Sea Areas v3, marineregions.org (CC BY 4.0). Not for navigation — follow official NAVAREA / coastal broadcasts.