Surveys

Oceanographic operations 24 and 25 aug by M/V thalassa in area between 25-00N 27-00N and 035-00W 037-00W 2.…

North Atlantic · NAVAREA IV 466/12

issued: 2012-08-22 14:35Z
status: cancelled 2012-08-26 00:01Z (archive)
authority: THALASSA 221401Z AUG 12.
source: nga_json · first seen 2026-08-17 13:38Z

Original warning text

NORTH ATLANTIC.
1. OCEANOGRAPHIC OPERATIONS 24 AND 25 AUG
   BY M/V THALASSA IN AREA BETWEEN
   25-00N 27-00N AND 035-00W 037-00W
2. CANCEL THIS MSG 26 AUG 12.

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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.