Survey operations 03 thru 22 jun by M/V cote de la manche with submersible in area bound by 48-34N 008-24W,…
Celtic Sea · HYDROLANT 1480/21
What this record establishes
Archived notice · 2021-06-23 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 II 214/21 011626Z JUN 21.. Issued 2021-06-01 16:32Z. 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
- Celtic Sea. The map shows an area described by the warning; the listed coordinate is its representative center. Check the original wording for limits and qualifications.
- issued
- 2021-06-01 16:32Z
- status
- Archived notice
- authority
- NAVAREA II 214/21 011626Z JUN 21.
- NAVAREA
- NAVAREA II · named as the source of this relay
- sea
- Celtic Sea
- position
- 48.157, -6.769
- vessel
- M/V COTE · 2 messages
- source
- NGA MSI broadcast-warn JSON (archive, frozen 2024-05) · first seen 2026-08-17 13:38Z
Original warning text
CELTIC SEA. BAY OF BISCAY. FRANCE-NORTHWEST COAST. DNC 08, DNC 19, DNC 20. 1. SURVEY OPERATIONS 03 THRU 22 JUN BY M/V COTE DE LA MANCHE WITH SUBMERSIBLE IN AREA BOUND BY 48-34N 008-24W, 48-31N 005-44W, 48-26N 005-10W, 48-08N 005-04W, 47-36N 005-49W, 47-47N 007-19W, 48-10N 008-42W. WIDE BERTH REQUESTED. 2. CANCEL THIS MSG 23 JUN 21.
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.
- 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.
- 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
603 within 180 nm since 1999 · 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.
- Scientific mooring established in 47-35.83N 007-23.92W2024-07-23
- Underwater operations 02 thru 11 oct by M/V atalante in area bound by 47-26.59N 006-34.33W, 46-52.40N…2023-09-29
- Survey operations in progress until 060001Z oct by M/V pourquoi pas in area bound by 47-17.05N 009-17.05W,…2023-09-25
- Survey operations 072201Z to 112159Z jun by vessel nanoplon in area within one mile of 48-20.67N 008-22.08W2023-06-06
- Survey operations 19 thru 25 apr in area bound by 48-00.00N 009-29.00W, 48-00.00N 007-56.00W, 46-54.00N…2023-04-17
- Scientific mooring established in 47-04.22N 003-19.86W until 27 mar2023-03-21
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 23:17Z; 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.