Surveys

Survey operations in progress until 21 oct by M/V northern explorer, M/V osprey explorer and M/V hawk…

Gulf of Mexico · NAVAREA IV 351/16

What this record establishes

Archived notice · 2016-06-02 22:45Z

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 86/16 061815Z MAY 16.. Issued 2016-05-06 23:31Z. 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
2016-05-06 23:31Z
status
Archived notice
authority
MEXICO IV 86/16 061815Z MAY 16.
NAVAREA
NAVAREA IV
issued by
MEXICO IV
sea
Gulf of Mexico
position
22.929, -92.143
vessels
M/V HAWK EXPLORER · 214 messagesM/V NORTHERN EXPLORER · 69 messagesM/V OSPREY EXPLORER · 72 messages
source
NGA MSI broadcast-warn JSON (archive, frozen 2024-05) · first seen 2026-08-17 13:38Z

Original warning text

NORTWESTERN CARIBBEAN SEA.
GULF OF MEXICO.
BAY OF CAMPECHE.
1. SURVEY OPERATIONS IN PROGRESS UNTIL 21 OCT BY
   M/V NORTHERN EXPLORER, M/V OSPREY EXPLORER
   AND M/V HAWK EXPLORER TOWING 12000 METER
   LONG CABLE IN AREA BOUND BY
   21-48N 093-45W, 22-33N 086-01W, 21-95N 085-93W,
   21-60N 085-85W, 20-82N 085-58W, 20-24N 085-09W,
   20-00N 084-92W, 19-54N 084-64W, 19-09N 085-18W,
   18-20N 085-56W, 17-86N 086-13W, 18-08N 087-16W,
   18-12N 087-35W, 18-16N 087-38W, 20-78N 086-56W,
   21-61N 086-57W, 22-07N 086-97W, 21-67N 089-11W,
   21-13N 090-56W, 19-85N 090-80W, 19-34N 091-07W,
   18-58N 092-87W, 18-34N 094-34W, 18-61N 094-92W,
   18-74N 095-19W, 18-83N 095-69W, 19-20N 095-96W,
   19-40N 096-21W, 19-85N 096-43W, 21-00N 097-20W,
   21-52N 097-23W, 22-24N 097-73W, 24-77N 097-50W,
   26-12N 096-94W, 26-12N 096-44W, 26-13N 095-08W,
   26-75N 094-63W, 26-27N 093-84W, 26-03N 094-03W,
   25-93N 086-72W, 25-21N 086-55W, 24-94N 086-94W,
   24-16N 086-65W, 23-51N 086-40W, 27-37N 086-34W,
   22-76N 086-11W, 22-33N 086-02W.
   WIDE BERTH REQUESTED.
2. CANCEL NAVAREA IV 256/16.
3. CANCEL THIS MSG 22 OCT 16.

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.
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

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

15
16

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

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 2026-09-30 00:12Z; 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.