Surveys

Underwater operations in progress until 26 aug by M/V thalassa in: a. 52-39.99N 051-52.94W

Labrador Sea · NAVAREA IV 618/14

What this record establishes

Archived notice · 2014-08-27 00:01Z

This notice comes from the historical archive. Its archived status does not establish when or how the reported situation ended.

Source and dates: NGA MSI broadcast-warn JSON (archive, frozen 2024-05) · SYLVIE VAN ISEGHEM 061311Z AUG 14.. Issued 2014-08-06 18:13Z. First collected 2026-08-17 13:38Z; last seen in collection 2026-08-17 15:46Z. Collection dates record ingestion, not a new incident or a fresh field observation.
Location covered: Labrador Sea. The parsed report position is 54.383, -51.435. It is a position in the source message, not a live location. Check the original wording for limits and qualifications.

Current notices and reporting history in the Labrador Sea →

issued: 2014-08-06 18:13Z
status: Archived notice
authority: SYLVIE VAN ISEGHEM 061311Z AUG 14.
NAVAREA: NAVAREA IV
issued by: SYLVIE VAN ISEGHEM
sea: Labrador Sea
position: 54.383, -51.435
vessel: M/V THALASSA · 139 messages
source: NGA MSI broadcast-warn JSON (archive, frozen 2024-05) · first seen 2026-08-17 13:38Z

Original warning text

WESTERN NORTH ATLANTIC.
LABRADOR SEA.
1. UNDERWATER OPERATIONS IN PROGRESS UNTIL 26 AUG
   BY M/V THALASSA IN:
   A. 52-39.99N 051-52.94W.
   B. 52-44.61N 051-41.79W.
   C. 52-44.61N 051-41.80W.
   D. 52-46.98N 051-35.82W.
   E. 52-50.17N 051-28.45W.
   F. 52-51.94N 051-29.36W.
   G. 52-52.30N 051-22.65W.
   H. 52-55.40N 051-15.89W.
   I. 52-57.13N 051-18.59W.
   J. 53-00.72N 051-02.65W.
   K. 53-02.76N 051-04.87W.
   L. 53-06.20N 050-50.40W.
   M. 53-08.26N 050-52.27W.
   N. 53-13.90N 050-34.08W.
   O. 53-21.55N 050-14.08W.
   P. 53-30.11N 049-53.64W.
   Q. 53-38.83N 049-32.85W.
   R. 53-47.86N 049-12.16W.
   S. 53-57.02N 048-52.05W.
   T. 54-10.00N 048-24.95W.
   U. 54-20.05N 047-55.05W.
   V. 57-30.00N 054-00.00W.
   W. 59-47.37N 060-37.28W.
   X. 59-48.55N 060-30.77W.
   Y. 59-51.05N 060-14.47W.
   Z. 59-20.30N 039-40.00W.
2. CANCEL THIS MSG 27 AUG 14.

Reading this warning

Underwater operations: Divers or remotely operated vehicles are working below a vessel that cannot easily move out of the way.
Position (degrees and minutes): How warnings write positions: degrees, a hyphen, then minutes, with N/S and E/W — 49-40.8N 003-43.8W.
CANCEL THIS MSG: The warning's own expiry: a line telling the reader when the message cancels itself.

All warning terms →

Collected reports in this area · survey operations

10 within 180 nm since 2014 · 0 in the last 12 months · 0 listed in force now

Counts include repeat notices about the same situation. NGA archive coverage ends 2024-05; live collection began 2026-08-17. The period between them is incomplete. An empty year is not evidence that no hazards occurred.

Month of issue in the collected archive

All available years combined. Uneven collection and repeat bulletins affect these counts; this chart does not measure the seasonality or probability of incidents.

Nearby notices listed in force · within 120 nm

No other collected notice is currently listed in force within this radius. This does not establish safe conditions.

Worldwide in the collected sources

54 survey operations listed in force · see all

Record snapshot 2026-10-02 11:49Z; source collection times vary.

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.