Surveys
Underwater operations 210001Z to 280700Z jan in area bound by 34-30N 126-20E, 34-20N 124-20E, 36-30N…
HYDROPAC 87/00
- issued
- 2000-01-16 08:20Z
- status
- cancelled 2000-01-28 08:00Z (archive)
- self-cancels
- 2000-01-28 08:00Z
- cancels
- HYDROPAC 84/00
- authority
- NAVAREA XI 035/00 160800Z JAN 00; RCC AUSTRALIA 160706Z JAN 00
- sea
- Yellow Sea
- position
- 35.458, 125.320
- source
- nga_json · first seen 2026-08-17 13:38Z
Original warning text
1. UNDERWATER OPERATIONS 210001Z TO 280700Z JAN IN AREA BOUND BY 34-30N 126-20E, 34-20N 124-20E, 36-30N 124-20E, 36-30N 126-20E. 2. CANCEL HYDROPAC 84/00(74), AID RESTORED. 3. CANCEL THIS MSG 280800Z JAN.
Activity windows · 1 in this warning
| opens (UTC) | closes (UTC) | local | length |
|---|---|---|---|
| 2000-01-21 00:01Z | 2000-01-28 07:00Z | — | 174 h 59 |
Parsed from the warning text; outside these windows the area is normally not active, but the warning stays in force until cancelled.
This area · survey operations
8 within 180 nm since 2000 · 0 in the last 12 months · 0 in force now
00
05
10
13
- Salvage operations in progress until 25 dec within 1.5 miles of 37-38-27.0N 123-07-32.4E2013-09-25
- Salvage operations in progress until 25 oct within 1.5 miles of 37-38-27.0N 123-07-32.4E2013-09-20
- Salvage operations in progress until 31 oct within 1.5 miles of 37-38-27.0N 123-07-32.4E2012-09-06
- Survey operations in progress until 30 nov by vessel towing 5000 meter long cable in area bound by 36-04.8N…2006-10-27
- Survey operations in progress until 15 sep by M/V odin explorer towing 4000 meter long cable in area bound…2006-07-19
- Underwater operations 07 thru 13 oct by M/V kan 407 vicinity 33-58-38.8N 123-21-14.2E2002-10-02
Season · when survey operations happen here
J
F
M
A
M
J
J
A
S
O
N
D
month of issue, all years in the archive
Timeline
- Rottnest island light 32-00.5S 115-30.1E unlitcancels · 2000-01-15
- Rottnest island light 32-00.5S 115-30.1E unlitreplaced · 2000-01-15
Nearby now · within 120 nm
Nothing else in force within 120 nm.
Worldwide now
84 survey operations in force · see all
Surveys
Hydrographic and scientific survey vessels, often towing long arrays. All current survey operations →
Not for navigation. This is a re-rendering of an official navigational warning for awareness; mariners must use official NAVAREA broadcasts and their national MSI service.