Surveys

Survey operations in progress until 181830Z aug by M/V sonne towing 3300 meter long cable in area bound by…

Indian Ocean · Sri Lanka · HYDROPAC 2405/17

issued: 2017-07-12 10:31Z
status: cancelled 2017-08-18 19:30Z (archive)
self-cancels: 2017-08-18 19:30Z
authority: NAVAREA VIII 496/17 121020Z JUL 17.
sea: Indian Ocean
position: -2.545, 81.027
source: nga_json · first seen 2026-08-17 13:38Z

Original warning text

INDIAN OCEAN.
SRI LANKA.
DNC 03.
1. SURVEY OPERATIONS IN PROGRESS UNTIL
   181830Z AUG BY M/V SONNE TOWING 3300 METER
   LONG CABLE IN AREA BOUND BY
   05-49.2N 080-03.0E, 06-00.0N 082-00.0E,
   11-00.0S 082-00.0E, 11-00.0S 080-03.0E.
   WIDE BERTH REQUESTED.
2. CANCEL THIS MSG 181930Z AUG 17.

This area · survey operations

1 within 180 nm since 2017 · 0 in the last 12 months · 0 in force now

Season · when survey operations happen here

month of issue, all years in the archive

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.