Surveys

Oceanographic operations in progress until 01 sep by M/V thalassa in area between 25-00N 27-00N and 035-00W…

North Atlantic · NAVAREA IV 489/12

issued: 2012-08-29 17:02Z
status: cancelled 2012-09-02 00:00Z (archive)
cancels: NAVAREA IV 480/12
authority: THALLASA 291434Z AUG 12.
source: nga_json · first seen 2026-08-17 13:38Z

Original warning text

NORTH ATLANTIC.
1. OCEANOGRAPHIC OPERATIONS IN PROGRESS UNTIL
   01 SEP BY M/V THALASSA IN AREA BETWEEN
   25-00N 27-00N AND 035-00W 037-00W.
2. CANCEL NAVAREA IV 480/12.
3. CANCEL THIS MSG 02 SEP 12.

Timeline

Oceanographic operations in progress until 29 aug by M/V thalassa in area between 25-00N 27-00N and 035-00W…cancels · 2012-08-27
Oceanographic operations in progress until 29 aug by M/V thalassa in area between 25-00N 27-00N and 035-00W…replaced · 2012-08-27
Oceanographic operations in progress until 03 sep by M/V thalassa in area between 25-00N 27-00N and 035-00W…cancelled by · 2012-08-31

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.