Underwater operations in progress until further notice: a. within two miles of 47-14.38N 004-22.35W
Bay of Biscay · HYDROLANT 2615/00
What this record establishes
Archived notice · 2000-09-22 11:50Z
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 219/00 251430Z JUL 00; NAVAREA II 220/00 251430Z JUL 00. Issued 2000-07-25 16:04Z. 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 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
- Underwater operations in progress until further notice within six miles of: a. 47-14.38N 004-22.35Wcancelled by this notice
- Survey operations in progress until further notice by M/V geo surveyor vicinity of trackline joining 48-14N…cancelled by this notice
- Survey operations in progress until 24 sep by M/V thetis towing equipment in areas bound by: a. 37-34.3N…later cancellation notice
Current notices and reporting history in the Bay of Biscay →
- issued
- 2000-07-25 16:04Z
- status
- Archived notice
- authority
- NAVAREA II 219/00 251430Z JUL 00; NAVAREA II 220/00 251430Z JUL 00
- NAVAREA
- NAVAREA II · named as the source of this relay
- sea
- Bay of Biscay
- position
- 47.242, -4.372
- source
- NGA MSI broadcast-warn JSON (archive, frozen 2024-05) · first seen 2026-08-17 13:38Z
Original warning text
1. UNDERWATER OPERATIONS IN PROGRESS UNTIL FURTHER NOTICE: A. WITHIN TWO MILES OF 47-14.38N 004-22.35W. B. WITHIN TWO MILES OF 47-09.45N 004-15.78W. C. WITHIN 0.2 MILE OF 47-14.69N 004-31.00W. 2. CANCEL HYDROLANT 2585/00(36), SURVEY COMPLETED. 3. CANCEL HYDROLANT 2543/00.
Reading this warning
- Underwater operations
- Divers or remotely operated vehicles are working below a vessel that cannot easily move out of the way.
- Until further notice
- The operation or danger has no scheduled end; the warning stays in force until a later message cancels it.
- Within a radius of
- A circular area — every position within a stated distance of a point.
- 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.
- Cancellation reference
- A line that cancels an earlier warning by its number, such as CANCEL HYDROLANT 1085/12.
- HYDROLANT
- The U.S. long-range warning series for Atlantic waters outside NAVAREA IV, including the eastern Atlantic, the Mediterranean and adjoining seas.
Collected reports in this area · survey operations
426 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 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
- 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
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 2026-10-03 07:12Z; 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.