Survey operations in progress until 060001Z oct by M/V angeles alvarinio and M/V emma bardan in area bound…
Bay of Biscay · HYDROLANT 2251/21
What this record establishes
Archived notice · 2021-09-09 15:32Z
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 330/21 021321Z SEP 21.. Issued 2021-09-02 13:49Z. 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
- Bay of Biscay. The parsed report position is 46.161, -3.647. It is a position in the source message, not a live location. Check the original wording for limits and qualifications.
Related notices and cancellation links
- Cancel HYDROLANT 2251/21 and this msglater cancellation notice
Current notices and reporting history in the Bay of Biscay →
- issued
- 2021-09-02 13:49Z
- status
- Archived notice
- self-cancels
- 2021-10-06 01:00Z
- authority
- NAVAREA II 330/21 021321Z SEP 21.
- NAVAREA
- NAVAREA II · named as the source of this relay
- sea
- Bay of Biscay
- position
- 46.161, -3.647
- vessels
- M/V ANGELES ALVARINIOM/V EMMA BARDAN · 4 messages
- source
- NGA MSI broadcast-warn JSON (archive, frozen 2024-05) · first seen 2026-08-17 13:38Z
Original warning text
BAY OF BISCAY. FRANCE. DNC 08, DNC 20. 1. SURVEY OPERATIONS IN PROGRESS UNTIL 060001Z OCT BY M/V ANGELES ALVARINIO AND M/V EMMA BARDAN IN AREA BOUND 48-28.0N 005-06.3W, 48-28.0N 004-07.9W, 47-31.9N 002-21.6W, 45-37.5N 000-45.2W, 43-18.3N 001-22.9W, 43-34.3N 008-08.9W.. WIDE BERTH REQUESTED. 2. CANCEL THIS MSG 060100Z OCT 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.
- 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.
- 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
196 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
- Scientific mooring established in 44-10.03N 002-10.21W2024-07-21
- Scientific moorings, marked by buoys, established in: a. 45-51.50N 002-02.00W2024-07-10
- Survey operations 19 apr thru 28 may by M/V thalassa along trackline joining 47-50.31N 004-08.86W, 43-22.95N…2024-04-17
- Survey operations 09 thru 13 oct by M/V minibex in area bound by 45-44.78N 001-55.27W, 45-53.86N 002-02.56W,…2023-10-06
- 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
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
56 survey operations listed in force · see all
Record snapshot 2026-10-02 18:22Z; 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.