Surveys
Hydrographic survey 251830Z nov to 051830Z dec in area bound by 12-55.90N 074-48.00E, 12-55.05N 074-44.00E,…
India-west Coast · HYDROPAC 3258/11
- issued
- 2011-11-20 18:30Z
- status
- cancelled 2011-12-05 19:30Z (archive)
- self-cancels
- 2011-12-05 19:30Z
- authority
- NAVAREA VIII 653/11 181004Z NOV 11.
- sea
- Laccadive Sea
- position
- 12.923, 74.794
- source
- nga_json · first seen 2026-08-17 13:38Z
Original warning text
INDIA-WEST COAST. 1. HYDROGRAPHIC SURVEY 251830Z NOV TO 051830Z DEC IN AREA BOUND BY 12-55.90N 074-48.00E, 12-55.05N 074-44.00E, 12-54.40N 074-44.00E, 12-55.15N 074-48.00E, 12-54.80N 074-48.00E, 12-54.80N 074-50.00E, 12-56.40N 074-50.00E, 12-56.40N 074-48.00E. WIDE BERTH REQUESTED. 2. CANCEL THIS MSG 051930Z DEC.
Activity windows · 1 in this warning
| opens (UTC) | closes (UTC) | local | length |
|---|---|---|---|
| 2011-11-25 18:30Z | 2011-12-05 18:30Z | — | 240 h |
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
41 within 180 nm since 2006 · 0 in the last 12 months · 0 in force now
06
10
15
20
24
- Survey operations 02 thru 18 apr in area bound by 14-42.00N 073-46.00E, 14-42.00N 073-51.00E, 14-47.00N…2024-04-01
- Survey operations in progress until 30 may in area bound by 12-47.00N 074-25.30E, 13-04.70N 074-25.30E,…2023-04-10
- Survey operations in progress until 25 apr in area bound by 12-47.00N 074-43.70E, 13-04.70N 074-43.70E,…2023-04-10
- Survey operations in progress until 08 jan in area bound by 15-18.70N 073-42.00E, 15-32.00N 073-42.00E,…2022-12-30
- Survey operations 210830Z to 281800Z oct in area bound by 15-00.77N 073-14.90E, 14-31.92N 072-21.77E,…2022-10-20
- Survey operations in progress until 181800Z oct in area bound by 15-00.77N 073-14.90E, 14-31.92N 072-21.77E,…2022-10-13
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
Nearby now · within 120 nm
Worldwide now
86 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.