Surveys

Underwater operations in progress until 23 feb by M/V poseidon towing equipment vicinity 21-35N 028-15W

HYDROLANT 181/06

issued: 2006-01-27 17:21Z
status: cancelled 2006-02-24 00:00Z (archive)
cancels: HYDROLANT 142/06
authority: NAVAREA II 30/06 271632Z JAN 06.
sea: North Atlantic Ocean
position: 21.583, -28.250
source: nga_json · first seen 2026-08-17 13:38Z

Original warning text

1. UNDERWATER OPERATIONS IN PROGRESS
   UNTIL 23 FEB BY M/V POSEIDON TOWING
   EQUIPMENT VICINITY 21-35N 028-15W.
   WIDE BERTH REQUESTED.
2. CANCEL HYDROLANT 142/06.
3. CANCEL THIS MSG 24 FEB.

This area · survey operations

1 within 180 nm since 2006 · 0 in the last 12 months · 0 in force now

Season · when survey operations happen here

month of issue, all years in the archive

Timeline

Survey operations 26 jan thru 21 feb by M/V poseidon along trackline 14-16.0N 017-05.3W and 10-15.0N 025-38.0Wcancels · 2006-01-23
Survey operations 26 jan thru 21 feb by M/V poseidon along trackline 14-16.0N 017-05.3W and 10-15.0N 025-38.0Wreplaced · 2006-01-23

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.