Surveys

Scientific moorings established by M/V atalante until 30 nov in: a. 46-54.51N 003-55.83W, marked by buoy,…

Bay of Biscay · HYDROLANT 402/22

What this record establishes

Archived notice · 2022-12-01 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) · AVURNAV BREST 74/22 091600Z FEB 22.. Issued 2022-02-09 16:09Z. 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 46.987, -4.836. It is a position in the source message, not a live location. Check the original wording for limits and qualifications.

Current notices and reporting history in the Bay of Biscay →

issued: 2022-02-09 16:09Z
status: Archived notice
authority: AVURNAV BREST 74/22 091600Z FEB 22.
issued by: AVURNAV BREST
sea: Bay of Biscay
position: 46.987, -4.836
vessel: M/V ATALANTE · 41 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.
DNC 08.
1. SCIENTIFIC MOORINGS ESTABLISHED BY M/V ATALANTE
   UNTIL 30 NOV IN:
   A. 46-54.51N 003-55.83W, MARKED BY BUOY,
      YELLOW, FL (5) Y 20 SEC.
   B. 46-33.93N 004-38.34W, MARKED BY BUOY,
      YELLOW, FL (5) Y 20 SEC.
   C. 47-35.46N 007-22.31W.
   D. 46-52.92N 003-24.18W.
   WIDE BERTH REQUESTED.
2. CANCEL THIS MSG 01 DEC 22.

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.
Scientific mooring: Instruments anchored to the seabed and held up by floats, sometimes just below the surface, left for months to measure the ocean.
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.
Light characteristic: The coded description of a light — FL W 10 SEC 8 METERS 8 MILES — giving its rhythm, colour, period, height and range.
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.

All warning terms →

Collected reports in this area · survey operations

408 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.

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 2026-10-01 21:43Z; 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.