Oceanographic operations 24 may thru 08 jun by M/V hesperides along trackline joining 26-00N 016-54W, 26-00N…
North Atlantic Ocean · HYDROLANT 1008/03
What this record establishes
Archived notice · 2003-06-09 00:00Z
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 167/03 230845Z MAY 03; WZ 649/03 230728Z MAY 03; PTNMM. Issued 2003-05-23 10:10Z. 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
- Seismic survey in progress until further notice by M/V stribas towing 50 meter long cable in area bound by…cancelled by this notice
- Derelict M/V behsat senkaya adrift vicinity 38-05.8N 010-32.9Ecancelled by this notice
Current notices and reporting history in the North Atlantic Ocean →
- issued
- 2003-05-23 10:10Z
- status
- Archived notice
- authority
- NAVAREA II 167/03 230845Z MAY 03; WZ 649/03 230728Z MAY 03; PTNMM
- NAVAREA
- NAVAREA II · named as the source of this relay
- sea
- North Atlantic Ocean
- position
- 23.536, -22.509
- vessel
- M/V HESPERIDES · 31 messages
- source
- NGA MSI broadcast-warn JSON (archive, frozen 2024-05) · first seen 2026-08-17 13:38Z
Original warning text
1. OCEANOGRAPHIC OPERATIONS 24 MAY THRU 08 JUN BY M/V HESPERIDES ALONG TRACKLINE JOINING 26-00N 016-54W, 26-00N 026-00W, 21-00N 026-00W, 21-00N 017-14W. TWO MILE BERTH REQUESTED. 2. CANCEL HYDROLANT 919/03(37), OPERATIONS SUSPENDED. 3. CANCEL HYDROLANT 997/03(52). 4. CANCEL THIS MSG 09 JUN.
Reading this warning
- Track line joining
- Introduces a route through a series of positions — a cable route, a tow's track or a survey line.
- 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.
- 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
7 within 180 nm since 2002 · 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 01 may until further notice by M/V kronprins haakon along trackline joining 17-00N…2019-04-27
- Oceanographic operations 060001Z dec to 242359Z jan 16 by M/V discovery along trackline joining 24-30.37N…2015-12-04
- Underwater operations in progress until 262100Z may by M/V james cook in 24-56.0N 021-16.4W2014-05-26
- Underwater operations 231600Z to 242300Z may by M/V james cook vicinity 23-46N 024-08W2014-05-21
- Scientific moorings established in: a. 23-49.6N 024-05.9W2006-04-05
- Oceanographic operations 200001Z sep to 011600Z oct by M/V hesperides along trackline joining 26-00N…2002-09-19
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
55 survey operations listed in force · see all
Record snapshot 2026-10-02 06:27Z; 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.