Surveys

Survey operations in progress until 300100Z aug by M/V wg columbus towing six 3000 meter long cables in area…

North Sea · HYDROLANT 2407/17

issued: 2017-08-04 03:21Z
status: cancelled 2017-08-18 04:50Z (archive)
self-cancels: 2017-08-30 02:00Z
authority: NAVAREA I 110/17 040130Z AUG 17.
source: nga_json · first seen 2026-08-17 13:38Z

Original warning text

NORTH SEA.
DNC 20.
1. SURVEY OPERATIONS IN PROGRESS
   UNTIL 300100Z AUG BY M/V WG COLUMBUS
   TOWING SIX 3000 METER LONG CABLES
   IN AREA BETWEEN
   57-12N 56-57N AND 000-33E 001-21E.
   THREE MILE BERTH REQUESTED.
2. CANCEL THIS MSG 300200Z AUG 17.

Timeline

Cancel HYDROLANT 2407/17 and this msg, operations completedcancelled by · 2017-08-18

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.