Surveys

Survey operations in progress until 16 mar by M/V wg tasman, M/V wg cook, M/V geco topaz and M/V geco…

Gulf of Mexico · NAVAREA IV 205/18

What this record establishes

Archived notice · 2018-03-17 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) · MEXICO IV 29/18 101545Z MAR 18.. Issued 2018-03-10 16:03Z. 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 map shows an area described by the warning; the listed coordinate is its representative center. Check the original wording for limits and qualifications.

Related notices and cancellation links

Current notices and reporting history in the Gulf of Mexico →

issued
2018-03-10 16:03Z
status
Archived notice
authority
MEXICO IV 29/18 101545Z MAR 18.
NAVAREA
NAVAREA IV
issued by
MEXICO IV
sea
Gulf of Mexico
position
18.314, -94.233
vessels
M/V GECO EMERALD · 66 messagesM/V GECO TOPAZ · 46 messagesM/V WG COOK · 72 messagesM/V WG TASMAN · 108 messages
source
NGA MSI broadcast-warn JSON (archive, frozen 2024-05) · first seen 2026-08-17 13:38Z

Original warning text

BAY OF CAMPECHE.
MEXICO.
1. SURVEY OPERATIONS IN PROGRESS UNTIL 16 MAR
   BY M/V WG TASMAN, M/V WG COOK, M/V GECO TOPAZ
   AND M/V GECO EMERALD IN AREA BOUND BY
   18-22.83N 094-15.90W, 18-22.85N 094-10.93W,
   18-21.24N 094-10.86W, 18-11.09N 094-15.82W.
   WIDE BERTH REQUESTED.
2. CANCEL NAVAREA IV 197/18.
3. CANCEL THIS MSG 17 MAR 18.

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.
Cancellation reference
A line that cancels an earlier warning by its number, such as CANCEL HYDROLANT 1085/12.
NAVAREA
One of the 21 ocean areas of the World-Wide Navigational Warning Service, each with a coordinator that broadcasts long-range warnings.
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

34 within 180 nm since 2004 · 0 in the last 12 months · 0 listed in force now

04
05
10
15
20
21

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 00:06Z; 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.