Underwater operations in progress until further notice by M/V geo searcher between 55-34N 007-42W and 55-17N…
North Atlantic Ocean · HYDROLANT 1654/99
What this record establishes
Archived notice · 1999-08-10 13:29Z
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) · WZ 1415/99 072257Z AUG 99; WZ 1413/99 071733Z AUG 99. Issued 1999-08-08 00:16Z. 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
- North Atlantic Ocean. The map shows the reported line or operation extent; it is not a vessel track. Check the original wording for limits and qualifications.
Related notices and cancellation links
- Underwater operations in progress until further notice by M/V geo searcher between 55-32N 007-15W and 55-34N…cancelled by this notice
- Mine adrift vicinity 60-29N 002-58W at 071318Z augcancelled by this notice
- Underwater operations in progress until further notice by M/V geo searcher between 55-17N 009-52W and 55-16N…later cancellation notice
Current notices and reporting history in the North Atlantic Ocean →
- issued
- 1999-08-08 00:16Z
- status
- Archived notice
- authority
- WZ 1415/99 072257Z AUG 99; WZ 1413/99 071733Z AUG 99
- issued by
- WZ
- sea
- North Atlantic Ocean
- position
- 55.425, -8.783
- vessel
- M/V GEO SEARCHER · 89 messages
- 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 BY M/V GEO SEARCHER BETWEEN 55-34N 007-42W AND 55-17N 009-52W. WIDE BERTH REQUESTED. 2. CANCEL HYDROLANT 1651/99, OBJECT CONFIRMED AS BUOY. 3. CANCEL HYDROLANT 1619/99.
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.
- 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.
- 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
158 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.
- Survey operations in progress until 31 oct by M/V ramform vanguard towing cables in area bound by 53-44.12N…2024-09-26
- Survey operations in progress until 20 jul by M/V celtic explorer in vicinity of trackline joining 47-30.00N…2023-06-14
- Underwater operations in progress until further notice by c/s ile daix in vicinity of trackline joining…2021-03-30
- Survey operations in progress until further notice by M/V fugro mercator, M/V fugro seeker and M/V spectrum…2021-03-25
- Survey operations in progress until further notice by M/V fugro mercator, M/V fastnet pelican and M/V…2021-02-11
- Survey operations in progress until further notice by M/V fugro mercator, M/V fastnet pelican and M/V…2021-02-11
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 23:14Z; 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.