Underwater operations 011400Z sep until further notice by cableship raymond croze in area bound by 38-11.80N…
Mediterranean Sea - Western Basin · HYDROLANT 2230/21
What this record establishes
Archived notice · 2021-09-05 00:33Z
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 668/21 301420Z AUG 21.. Issued 2021-08-30 17:15Z. 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
- 2021-08-30 17:15Z
- status
- Archived notice
- authority
- NAVAREA III 668/21 301420Z AUG 21.
- NAVAREA
- NAVAREA III · named as the source of this relay
- sea
- Mediterranean Sea - Western Basin
- position
- 38.146, 8.523
- source
- NGA MSI broadcast-warn JSON (archive, frozen 2024-05) · first seen 2026-08-17 13:38Z
Original warning text
WESTERN MEDITERRANEAN SEA. TUNISIA. DNC 08. UNDERWATER OPERATIONS 011400Z SEP UNTIL FURTHER NOTICE BY CABLESHIP RAYMOND CROZE IN AREA BOUND BY 38-11.80N 008-30.05E, 38-11.20N 008-27.50E, 38-08.80N 008-24.30E, 38-05.35N 008-33.50E, 38-08.80N 008-38.50E. ONE MILE BERTH REQUESTED.
Reading this warning
- DNC (Digital Nautical Chart)
- A reference to one of the regions of NGA's Digital Nautical Chart, used to tell the reader which charts a warning affects.
- Underwater operations
- Divers or remotely operated vehicles are working below a vessel that cannot easily move out of the way.
- 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.
- Until further notice
- The operation or danger has no scheduled end; the warning stays in force until a later message cancels it.
- Cable operations
- A ship is laying, burying or repairing a submarine cable, usually along a stated route.
- 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 · cable & pipeline work
157 within 180 nm since 1999 · 2 in the last 12 months · 1 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.
- Cable operations 281200Z sep until further notice by M/V maasvliet along tracklines joining: a. 39-32.67N…2026-09-28
- Cable operations by MV maasvliet (IMO-9996915) days 281200 UTC sep 26 until further notice in the segments:…2026-09-28
- Cable operations 28 aug thru 10 sep by cableship cable vigilance in area within one mile of 37-47.30N…2023-08-27
- Cable operations 070001Z to 222359Z may by cableship raymond croze in area within ten miles of 38-28.70N…2022-05-05
- Pipeline operations in progress until 13 feb 22 by M/V ievoli ivori in area bound by 37-01.0N 011-04.2E,…2021-10-30
- Underwater operations in progress until 152359Z sep by cableship raymond croze in area bound by 38-11.80N…2021-09-05
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
24 cable & pipeline work listed in force · see all
Record snapshot 2026-10-01 14:24Z; source collection times vary.
Cable ops
Cable laying, pipeline and seismic operations. All current cable & pipeline work →
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.