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 1521/23 · Icebergs2023-07-06 → 2023-07-07Icebergs reported in: a. A23A, 68-19.80S 055-57.00W
- HYDROLANT 1509/23 · Icebergs2023-07-05 → 2023-07-06Icebergs reported in: a. A23A, 68-19.80S 055-57.00W
- HYDROLANT 1505/23 · Icebergs2023-07-04 → 2023-07-05Icebergs reported in: a. A23A, 68-19.80S 055-57.00W
- HYDROLANT 1499/23 · Icebergs2023-07-03 → 2023-07-04Icebergs reported in: a. A23A, 68-19.80S 055-57.00W
- HYDROLANT 1493/23 · Icebergs2023-07-02 → 2023-07-03Icebergs reported in: a. A23A, 70-30.00S 055-03.00W
- HYDROLANT 1485/23 · Icebergs2023-07-01 → 2023-07-02Icebergs reported in: a. A23A, 70-30.00S 055-03.00W
- HYDROLANT 1479/23 · Icebergs2023-06-30 → 2023-07-01Icebergs reported in: a. A23A, 70-30.00S 005-03.00W
- HYDROLANT 1474/23 · Icebergs2023-06-30 → 2023-07-03Icebergs reported in: a. 62-20.40S 056-57.20W
- HYDROLANT 1470/23 · Icebergs2023-06-29 → 2023-06-30Icebergs reported in: a. A23A, 70-30.00S 005-03.00W
- HYDROLANT 1465/23 · Icebergs2023-06-28 → 2023-06-29Icebergs reported in: a. A23A, 70-30.00S 005-03.00W
- HYDROLANT 1454/23 · Icebergs2023-06-27 → 2023-06-28Icebergs reported in: a. A23A, 70-30.00S 035-03.00W
- HYDROLANT 1438/23 · Icebergs2023-06-26 → 2023-06-27Icebergs reported in: a. A23A, 70-30.00S 055-03.00W
- HYDROLANT 1423/23 · Icebergs2023-06-25 → 2023-06-26Icebergs reported in: a. A23A, 70-30.00S 056-03.00W
- HYDROLANT 1416/23 · Icebergs2023-06-24 → 2023-06-25Icebergs reported in: a. A23A, 69-26.40S 056-04.20W
- HYDROLANT 1406/23 · Icebergs2023-06-23 → 2023-06-24Icebergs reported in: a. A23A, 69-26.40S 056-04.20W
- HYDROLANT 1401/23 · Icebergs2023-06-23 → 2023-06-26Iceberg reported in vicinity 62-24.70S 056-36.40W
- HYDROLANT 1391/23 · Icebergs2023-06-22 → 2023-06-23South shetland islands
- HYDROLANT 1380/23 · Icebergs2023-06-21 → 2023-06-22Icebergs reported in: a. A23A, 69-26.40S 056-04.20W
- HYDROLANT 1370/23 · Icebergs2023-06-20 → 2023-06-21Icebergs reported in: a. A23A, 70-12.00S 055-34.20W
- HYDROLANT 1359/23 · Icebergs2023-06-19 → 2023-06-20Icebergs reported in: a. A23A, 70-12.00S 055-34.20W
Sea boundaries: Flanders Marine Institute (2018), IHO Sea Areas v3, marineregions.org (CC BY 4.0). Not for navigation — follow official NAVAREA / coastal broadcasts.