Surveys

Underwater operations 19 and 20 sep by M/V marion dufresne in area between 46-45N 47-00N and 006-00W 006-30W

HYDROLANT 2487/01

issued: 2001-09-18 14:08Z
status: cancelled 2001-09-21 00:00Z (archive)
cancels: HYDROLANT 2486/01
authority: NAVAREA II 349/01 181148Z SEP 01; GIHA
source: nga_json · first seen 2026-08-17 13:38Z

Original warning text

1. UNDERWATER OPERATIONS 19 AND 20 SEP BY M/V MARION DUFRESNE
   IN AREA BETWEEN 46-45N 47-00N AND 006-00W 006-30W.
   WIDE BERTH REQUESTED.
2. CANCEL HYDROLANT 2486/01(38), 2458/01 REFERS.
3. CANCEL THIS MSG 21 SEP.

Timeline

Underwater ordnance detonations 180001Z to 202359Z sep within 60 miles of 62-48N 031-45Wcancels · 2001-09-18
Underwater ordnance detonations 180001Z to 202359Z sep within 60 miles of 62-48N 031-45Wreplaced · 2001-09-18

Nearby now · within 120 nm

Nothing else in force within 120 nm.

Worldwide now

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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.