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 609/05 · Icebergs2005-04-12 → 2005-04-19Large iceberg sighted in 60-02S 146-43W at 112027Z apr
- HYDROPAC 393/05 · Other2005-03-03 → 2005-03-03S/V apostol andrey has lost rudder in 63-44S 169-15W
- HYDROPAC 215/05 · Icebergs2005-02-02 → 2005-02-06Numerous icebergs sighted vicinity 63-09S 175-48E at 301600Z jan
- HYDROPAC 167/05 · Icebergs2005-01-27 → 2005-02-04Icebergs reported in: a. 60-37S 050-14W
- HYDROPAC 776/04 · Nav aids2004-04-30 → 2004-08-18Grumete light 62-59S 060-40W unlit
- HYDROPAC 554/04 · Icebergs2004-03-27 → 2004-04-03Icebergs reported on 26 mar: a. A-22A, 23 miles by 32 miles in 76-24S 052-18W
- HYDROPAC 534/04 · Nav aids2004-03-24 → 2004-04-30Grumete light 62-59S 060-40W unlit
- HYDROPAC 526/04 · Icebergs2004-03-23 → 2004-03-27Icebergs reported on 22 mar: a. A-22A, 23 miles by 32 miles in 76-24S 052-18W
- HYDROPAC 471/04 · Icebergs2004-03-13 → 2004-03-20Icebergs reported on 12 mar: a. A-22A, 23 miles by 32 miles in 76-24S 052-18W
- HYDROPAC 383/04 · Icebergs2004-02-29 → 2004-03-07Icebergs reported on 28 feb: a. A-22A, 23 miles by 32 miles in 76-24S 052-18W
- HYDROPAC 304/04 · Icebergs2004-02-18 → 2004-02-25Icebergs reported on 17 feb in: a. A-22A, 23 miles by 32 miles in 76-24S 052-18W
- HYDROPAC 235/04 · Icebergs2004-02-07 → 2004-02-14Icebergs reported on 06 feb in: a. A-22A, 23 miles by 32 miles in 76-24S 052-18W
- HYDROPAC 164/04 · Icebergs2004-01-28 → 2004-02-04Icebergs reported on 27 jan in: a. A-43A, 14 miles by 35 miles in 64-12S 055-42W
- HYDROPAC 1939/03 · Icebergs2003-11-08 → 2003-11-15Icebergs reported on 08 nov: a. A-38A, 22 miles by 48 miles in 57-54S 040-42W
- HYDROPAC 1838/03 · Icebergs2003-10-23 → 2003-10-30Icebergs reported on 20 oct: a. A-38A, 22 miles by 48 miles in 58-12S 043-00W
- HYDROPAC 1771/03 · Icebergs2003-10-13 → 2003-10-20Icebergs reported on 12 oct: a. A-38A, 22 miles by 48 miles in 58-12S 043-00W
- HYDROPAC 1655/03 · Nav aids2003-09-26 → 2004-03-24Grumete light 62-59S 060-40W unlit
- HYDROPAC 1516/03 · Icebergs2003-09-03 → 2003-09-10Icebergs reported on 02 sep: a. A-38A, 22 miles by 48 miles in 59-12S 044-00W
- HYDROPAC 1142/03 · Icebergs2003-07-02 → 2003-07-06Icebergs reported on 27 jun in: a. A-38A, 22 miles by 48 miles in 59-18S 046-12W
- HYDROPAC 883/03 · Icebergs2003-05-24 → 2003-05-31Icebergs reported on 23 may in: a. A-38A, 22 miles by 48 miles in 59-18S 049-06W
Sea boundaries: Flanders Marine Institute (2018), IHO Sea Areas v3, marineregions.org (CC BY 4.0). Not for navigation — follow official NAVAREA / coastal broadcasts.