Surveys

Hydrographic survey by M/V thalassa: a. 21 jun along trackline between 61-55N 021-00W and 63-01N 024-37W

North Atlantic · NAVAREA IV 493/15

issued
2015-06-21 10:54Z
status
cancelled 2015-06-22 17:41Z (archive)
cancels
NAVAREA IV 486/15
authority
THALASSA 191247Z JUN 15.
position
62.407, -25.751
source
nga_json · first seen 2026-08-17 13:38Z

Original warning text

NORTH ATLANTIC.
1. HYDROGRAPHIC SURVEY BY M/V THALASSA:
   A. 21 JUN ALONG TRACKLINE BETWEEN
      61-55N 021-00W AND 63-01N 024-37W.
   B. 22 JUN ALONG TRACKLINE BETWEEN
      60-18N 021-00W AND 63-01N 024-37W.
   C. 23 JUN ALONG TRACKLINE BETWEEN
      63-00N 027-40W AND 63-00N 033-00W.
   WIDE BERTH REQUESTED.
2. CANCEL NAVAREA IV 486/15.
3. CANCEL THIS MSG 24 JUN 15.

This area · survey operations

6 within 180 nm since 2015 · 0 in the last 12 months · 0 in force now

Season · when survey operations happen here

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month of issue, all years in the archive

Timeline

Nearby now · within 120 nm

Nothing else in force within 120 nm.

Worldwide now

73 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.