Survey operations in progress until further notice by M/V polarcus naila towing 12 8400 meter long cables in…
Gulf of Mexico · NAVAREA IV 489/19
What this record establishes
Archived notice · 2019-07-09 08:18Z
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) · POLARCUS NAILA 110654Z JUN 19.. Issued 2019-06-11 08:14Z. 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
- Cancel NAVAREA IV 489/19 and this msg, operations completedlater cancellation notice
Current notices and reporting history in the Gulf of Mexico →
- issued
- 2019-06-11 08:14Z
- status
- Archived notice
- authority
- POLARCUS NAILA 110654Z JUN 19.
- NAVAREA
- NAVAREA IV
- issued by
- POLARCUS NAILA
- sea
- Gulf of Mexico
- position
- 18.589, -93.910
- vessel
- M/V POLARCUS NAILA · 61 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. SURVEY OPERATIONS IN PROGRESS UNTIL FURTHER NOTICE BY M/V POLARCUS NAILA TOWING 12 8400 METER LONG CABLES IN AREA BOUND BY 18-55.5N 093-41.4W, 18-35.7N 093-27.6W, 18-18.7N 093-56.0W, 18-18.0N 094-10.3W, 18-36.5N 094-22.0W. SEVEN MILE BERTH REQUESTED.
Reading this warning
- Survey operations
- A research or survey vessel is mapping the seabed or water column, often while towing equipment.
- Until further notice
- The operation or danger has no scheduled end; the warning stays in force until a later message cancels it.
- 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.
Collected reports in this area · survey operations
34 within 180 nm since 2004 · 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.
- Underwater operations in progress until 01 sep in area bound by 18-52-59N 093-49-46W, 18-52-38N 093-49-18W,…2021-08-13
- Survey operations in progress until 16 may by M/V psv allison in: a. 18-30.70N 093-58.24W2021-05-14
- Survey operations in progress until 300800Z jul by M/V geo explorer in area bound by 18-34.37N 092-46.23W,…2019-06-30
- Survey operations in progress until 16 mar by M/V wg tasman, M/V wg cook, M/V geco topaz and M/V geco…2018-03-10
- Survey operations in progress until 16 mar by M/V wg tasman, M/V wg cook, M/V geco topaz and M/V geco…2018-03-07
- Survey operations in progress until 06 mar by M/V wg tasman, M/V wg cook, M/V geco topaz and M/V geco…2018-03-02
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
- Tonala light 18-12-45N 094-08-00W unlitNav aids · 25.9 nm
- Roca partida light 18-42-17N 095-11-18W unlitNav aids · 73 nm
- Santiaguillo light 19-08.56N 095-48.48W unlitNav aids · 112.8 nm
Worldwide in the collected sources
56 survey operations listed in force · see all
Record snapshot 2026-10-02 16:57Z; 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.