Surveys

Survey operations in progress until 250259Z mar by M/V polar bjorn towing 50 meter long cable in area…

HYDROLANT 471/04

issued: 2004-03-23 12:50Z
status: cancelled 2004-03-25 03:59Z (archive)
self-cancels: 2004-03-25 03:59Z
authority: NAVAREA V 240/04 230357Z MAR 04
source: nga_json · first seen 2026-08-17 13:38Z

Original warning text

1. SURVEY OPERATIONS IN PROGRESS UNTIL 250259Z MAR
   BY M/V POLAR BJORN TOWING 50 METER
   LONG CABLE IN AREA BETWEEN
   24-40S 25-00S AND 043-00W 044-20W.
   TWO MILE BERTH REQUESTED.
2. CANCEL THIS MSG 250359Z MAR.

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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.