Surveys

Survey operations 28 mar thru 31 jul by M/V gyre in area bound by 08-45.48N 052-24.97W, 07-42.93N…

North Atlantic Ocean · NAVAREA IV 334/23

What this record establishes

Archived notice · 2023-08-01 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) · SURINAME 5/23 240039Z MAR 23.. Issued 2023-03-24 08:45Z. 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: North Atlantic Ocean. The map shows an area described by the warning; the listed coordinate is its representative center. Check the original wording for limits and qualifications.

Current notices and reporting history in the North Atlantic Ocean →

issued: 2023-03-24 08:45Z
status: Archived notice
self-cancels: 2023-08-01 00:01Z
authority: SURINAME 5/23 240039Z MAR 23.
NAVAREA: NAVAREA IV
issued by: SURINAME
sea: North Atlantic Ocean
position: 8.405, -53.913
vessel: M/V GYRE · 17 messages
source: NGA MSI broadcast-warn JSON (archive, frozen 2024-05) · first seen 2026-08-17 13:38Z

Original warning text

WESTERN NORTH ATLANTIC.
SURINAME.
1. SURVEY OPERATIONS 28 MAR THRU 31 JUL
   BY M/V GYRE IN AREA BOUND BY
   08-45.48N 052-24.97W, 07-42.93N 052-56.10W,
   07-42.49N 053-54.72W, 07-47.53N 054-24.95W,
   07-46.32N 054-40.47W, 07-27.17N 054-51.97W,
   07-27.28N 055-17.38W, 08-02.72N 055-17.24W,
   08-02.63N 054-57.59W, 08-27.24N 054-57.47W,
   08-27.08N 055-02.71W, 08-52.81N 055-02.58W,
   09-02.47N 054-56.34W, 09-02.46N 054-24.83W,
   09-22.19N 054-02.75W, 09-12.03N 053-26.45W.
   WIDE BERTH REQUESTED.
2. CANCEL THIS MSG 010001Z AUG 23.

Reading this warning

Survey operations: A research or survey vessel is mapping the seabed or water column, often while towing equipment.
Area bound by: Introduces a list of positions that are the corners of an area — the polygon the warning applies to.
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.
Wide berth requested: Keep well clear — or, when a distance is given ("TWO MILE BERTH REQUESTED"), at least that far away.
CANCEL THIS MSG: The warning's own expiry: a line telling the reader when the message cancels itself.
Date-time group (DTG): A compact UTC timestamp — day, hour and minute followed by Z — such as 201500Z for the 20th at 15:00 UTC.

All warning terms →

Collected reports in this area · survey operations

143 within 180 nm since 2003 · 7 in the last 12 months · 6 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 2026-09-29 02:19Z; 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.