Survey operations 29 and 30 jul by M/V alliance towing equipment in area bound by 43-47.4N 008-46.7E,…
Mediterranean Sea - Western Basin · HYDROLANT 1404/09
What this record establishes
Archived notice · 2009-07-31 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) · NAVAREA III 296/09 281102Z JUL 09.. Issued 2009-07-28 12:22Z. 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
- Mediterranean Sea - Western Basin. 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 Mediterranean Sea - Western Basin →
- issued
- 2009-07-28 12:22Z
- status
- Archived notice
- authority
- NAVAREA III 296/09 281102Z JUL 09.
- NAVAREA
- NAVAREA III · named as the source of this relay
- sea
- Mediterranean Sea - Western Basin
- position
- 41.746, 5.339
- vessel
- M/V ALLIANCE · 61 messages
- source
- NGA MSI broadcast-warn JSON (archive, frozen 2024-05) · first seen 2026-08-17 13:38Z
Original warning text
1. SURVEY OPERATIONS 29 AND 30 JUL BY M/V ALLIANCE TOWING EQUIPMENT IN AREA BOUND BY 43-47.4N 008-46.7E, 43-20.5N 009-15.9E, 39-43.3N 002-00.0E, 40-14.3N 001-31.4E. WIDE BERTH REQUESTED. 2. CANCEL THIS MSG 31 JUL.
Reading this warning
- Survey operations
- A research or survey vessel is mapping the seabed or water column, often while towing equipment.
- 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.
- CANCEL THIS MSG
- The warning's own expiry: a line telling the reader when the message cancels itself.
Collected reports in this area · survey operations
133 within 180 nm since 1998 · 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.
- Survey operations in progress until 30 aug by M/V durable along trackline joining 41-22.68N 006-04.83E,…2024-04-24
- Survey operations 22 jul thru 13 aug by M/V tethys II, M/V l`europe, and M/V sagitta III in area bound by…2023-07-20
- Scientific buoys temporarily established by M/V thalassa 15 jul thru 30 aug in: a. dyfamed, 43-25.00N…2023-07-11
- Survey operations 120900Z to 172359Z apr by M/V l'atalante in vicinity of trackline joining 40-56.00N…2023-04-11
- Survey operations in progress until 111700Z apr by M/V tethys II in vicinity of trackline joining 41-22.0N…2023-04-09
- Survey operations in progress until 111800Z apr by M/V tethys II in vicinity of trackline joining 40-07.0N…2023-04-09
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
50 survey operations listed in force · see all
Record snapshot 2026-09-24 23:07Z; 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.