Surveys

Survey operations in progress until 15 sep by M/V fulmar explorer towing four 100 meter long cables in…

Gulf of Mexico · NAVAREA IV 978/23

What this record establishes

Archived notice · 2023-09-16 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) · TGS 0/23 282023Z AUG 23.. Issued 2023-08-28 21:13Z. 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
Gulf of Mexico. The parsed report position is 28.148, -89.267. 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 Gulf of Mexico →

issued
2023-08-28 21:13Z
status
Archived notice
self-cancels
2023-09-16 00:01Z
authority
TGS 0/23 282023Z AUG 23.
NAVAREA
NAVAREA IV
issued by
TGS
sea
Gulf of Mexico
position
28.148, -89.267
vessel
M/V FULMAR EXPLORER · 3 messages
source
NGA MSI broadcast-warn JSON (archive, frozen 2024-05) · first seen 2026-08-17 13:38Z

Original warning text

GULF OF MEXICO.
LOUISIANA.
1. SURVEY OPERATIONS IN PROGRESS UNTIL 15 SEP
   BY M/V FULMAR EXPLORER TOWING FOUR 100 METER
   LONG CABLES IN VICINITY 28-08.87N 089-16.05W.
   WIDE BERTH REQUESTED.
2. CANCEL THIS MSG 160001Z SEP 23.

Reading this warning

Survey operations
A research or survey vessel is mapping the seabed or water column, often while towing equipment.
Towed array / streamer
Equipment towed a long way behind a vessel — sonar, a hydrophone cable, a sampling sled — invisible at the surface.
Tow / towing
A vessel towing another vessel, a barge or a structure — slow, hard to manoeuvre, and with a long line between.
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

40 within 180 nm since 2002 · 3 in the last 12 months · 0 listed in force now

02
05
10
15
20
25
26

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

J
F
M
A
M
J
J
A
S
O
N
D

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

Worldwide in the collected sources

55 survey operations listed in force · see all

Record snapshot 2026-10-01 09:20Z; 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.