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 231/18 · Icebergs2018-01-17 → 2018-01-18Icebergs reported in: a. B22A, 74-04S 108-54W
- HYDROPAC 205/18 · Missiles2018-01-15 → 2018-01-21Hazardous operations, space debris 200130Z to 280530Z jan in area bound by 57-06S 179-54W, 56-42S 176-36W,…
- HYDROPAC 201/18 · Icebergs2018-01-15 → 2018-01-16Icebergs reported in: a. B22A, 74-04S 108-54W
- HYDROPAC 192/18 · Surveys2018-01-15 → 2018-01-21Underwater operations in progress until further notice by M/V joides resolution in 75-41.04S 179-40.31W
- HYDROPAC 183/18 · Icebergs2018-01-14 → 2018-01-15Icebergs reported in: a. B22A, 74-04S 108-54W
- HYDROPAC 175/18 · Icebergs2018-01-13 → 2018-01-14Icebergs reported in: a. B22A, 74-04S 108-54W
- HYDROPAC 161/18 · Icebergs2018-01-12 → 2018-01-13Icebergs reported in: a. B22A, 74-04S 108-54W
- HYDROPAC 143/18 · Icebergs2018-01-11 → 2018-01-12Icebergs reported in: a. B22A, 74-04S 108-54W
- HYDROPAC 124/18 · Icebergs2018-01-10 → 2018-01-11Icebergs reported in: a. B22A, 74-04S 108-54W
- HYDROPAC 102/18 · Icebergs2018-01-09 → 2018-01-10Icebergs reported in: a. B22A, 74-04S 108-54W
- HYDROPAC 85/18 · Icebergs2018-01-08 → 2018-01-09Icebergs reported in: a. B22A, 74-04S 108-54W
- HYDROPAC 74/18 · Icebergs2018-01-07 → 2018-01-08Icebergs reported in: a. B22A, 74-04S 108-54W
- HYDROPAC 68/18 · Icebergs2018-01-06 → 2018-01-07Icebergs reported in: a. B22A, 74-04S 108-54W
- HYDROPAC 54/18 · Icebergs2018-01-05 → 2018-01-06Icebergs reported in: a. B22A, 74-04S 108-54W
- HYDROPAC 41/18 · Icebergs2018-01-04 → 2018-01-05Icebergs reported in: a. B22A, 74-04S 108-54W
- HYDROPAC 30/18 · Icebergs2018-01-03 → 2018-01-04Icebergs reported in: a. B22A, 74-04S 108-54W
- HYDROPAC 16/18 · Icebergs2018-01-02 → 2018-01-03Icebergs reported in: a. B22A, 74-04S 108-54W
- HYDROPAC 7/18 · Icebergs2018-01-01 → 2018-01-02Icebergs reported in: a. B22A, 74-04S 108-54W
- HYDROPAC 4665/17 · Icebergs2017-12-31 → 2018-01-01Icebergs reported in: a. B22A, 74-04S 108-54W
- HYDROPAC 4650/17 · Icebergs2017-12-30 → 2017-12-31Icebergs reported in: a. B22A, 74-04S 108-54W
Sea boundaries: Flanders Marine Institute (2018), IHO Sea Areas v3, marineregions.org (CC BY 4.0). Not for navigation — follow official NAVAREA / coastal broadcasts.