Surveys

Survey operations in progress until 26 apr by M/V poseidon in area between 27-30N 31-00N and 013-00W 017-00W

HYDROLANT 635/04

issued: 2004-04-16 19:10Z
status: cancelled 2004-04-27 00:00Z (archive)
authority: NAVAREAII 137/04 161845Z APR 04
source: nga_json · first seen 2026-08-17 13:38Z

Original warning text

1. SURVEY OPERATIONS IN PROGRESS UNTIL 26 APR
   BY M/V POSEIDON IN AREA BETWEEN
   27-30N 31-00N AND 013-00W 017-00W.
   WIDE BERTH REQUESTED.
2. CANCEL THIS MSG 27 APR.

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.