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
- HYDROPAC 109/03 · Other2003-01-20 → 2003-03-29Dangerous submerged rocks, least depth 6.4 meters, in 67-56-02.0S 067-33-42.7W
- HYDROPAC 100/03 · Nav aids2003-01-18 → 2003-09-13Montravel rock RACON 63-09S 058-02W changed to: (m) 8 miles
- HYDROPAC 93/03 · Icebergs2003-01-18 → 2003-01-25Icebergs reported on 17 jan in: a. A-38A, 22 miles by 48 miles in 63-30S 052-30W
- HYDROPAC 43/03 · Icebergs2003-01-10 → 2003-01-17Icebergs reported on 10 jan in: a. A-38A, 23 miles by 48 miles in 63-18S 052-24W
- HYDROPAC 22/03 · Icebergs2003-01-06 → 2003-01-10Icebergs reported on 03 jan in: a. A-22A, 23 miles by 32 miles in 76-06S 046-18W
- HYDROPAC 2331/02 · Icebergs2002-12-11 → 2002-12-18Icebergs reported: a. in area between 63-12.8S 63-18.3S and 060-34.1W 060-42.0W
- HYDROLANT 2723/02 · Icebergs2002-12-11 → 2002-12-18Icebergs reported: a. in 47-21.0S 058-37.3W
- HYDROPAC 2313/02 · Icebergs2002-12-07 → 2002-12-14Icebergs reported on 05 dec: a. A-38A, 22 miles by 48 miles in 63-18S 053-00W
- HYDROLANT 2704/02 · Icebergs2002-12-07 → 2002-12-14Icebergs reported on 05 dec: a. A-38A, 22 miles by 48 miles in 63-18S 053-00W
- HYDROLANT 2683/02 · Icebergs2002-12-05 → 2002-12-11Icebergs reported: a. in area between 49-15.0S 050-15.0S and 046-00.0W 050-00.0W
- HYDROPAC 2178/02 · Nav aids2002-11-22 → 2003-01-09Montravel rock RACON 63-09S 058-02W inoperative
- HYDROPAC 2032/02 · Icebergs2002-10-31 → 2002-11-07Icebergs reported on 30 oct: a. A-38A, 22 miles by 48 miles in 63-18S 053-06W
- HYDROLANT 2414/02 · Icebergs2002-10-31 → 2002-11-07Icebergs reported on 30 oct: a. A-38A, 22 miles by 48 miles in 63-18S 053-06W
- HYDROPAC 1931/02 · Icebergs2002-10-15 → 2002-10-22Icebergs reported on 15 oct: a. A-38A, 22 miles by 48 miles in 64-24S 053-18W
- HYDROLANT 2284/02 · Icebergs2002-10-15 → 2002-10-22Icebergs reported on 15 oct: a. A-38A, 22 miles by 48 miles in 64-24S 053-18W
- HYDROPAC 1772/02 · Icebergs2002-09-27 → 2002-10-04Icebergs reported on 26 sep: a. A-38A, 22 miles by 48 miles in 64-24S 054-12W
- HYDROLANT 2161/02 · Icebergs2002-09-27 → 2002-10-04Icebergs reported on 26 sep: a. A-38A, 22 miles by 48 miles in 64-24S 054-12W
- HYDROPAC 1490/02 · Icebergs2002-08-17 → 2002-08-24Very large icebergs reported on 16 aug: a. A-47, nine miles by 14 miles, vicinity 61-54S 053-48W
- HYDROPAC 1489/02 · Icebergs2002-08-17 → 2002-08-24Very large iceberg A-46, four miles by 11 miles, reported in 60-30S 049-18W on 16 aug
- HYDROLANT 1818/02 · Icebergs2002-08-17 → 2002-08-24Very large iceberg A-46, four miles by 11 miles, reported in 60-30S 049-18W on 16 aug
Sea boundaries: Flanders Marine Institute (2018), IHO Sea Areas v3, marineregions.org (CC BY 4.0). Not for navigation — follow official NAVAREA / coastal broadcasts.