Survey operations in progress until 28 jul by M/V sarmiento de gamboa in area bound by 33-54N 007-40W,…
North Atlantic Ocean · HYDROLANT 2296/18
What this record establishes
Archived notice · 2018-07-18 23:22Z
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 298/18 131630Z JUL 18.. Issued 2018-07-13 16:55Z. 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 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
Current notices and reporting history in the North Atlantic Ocean →
- issued
- 2018-07-13 16:55Z
- status
- Archived notice
- authority
- NAVAREA II 298/18 131630Z JUL 18.
- NAVAREA
- NAVAREA II · named as the source of this relay
- sea
- North Atlantic Ocean
- position
- 35.319, -10.124
- vessel
- M/V SARMIENTO DE GAMBOA · 67 messages
- source
- NGA MSI broadcast-warn JSON (archive, frozen 2024-05) · first seen 2026-08-17 13:38Z
Original warning text
EASTERN NORTH ATLANTIC. MOROCCO. DNC 08. 1. SURVEY OPERATIONS IN PROGRESS UNTIL 28 JUL BY M/V SARMIENTO DE GAMBOA IN AREA BOUND BY 33-54N 007-40W, 32-50N 009-35W, 36-45N 012-35W, 37-48N 010-40W. WIDE BERTH REQUESTED. 2. CANCEL HYDROLANT 2262/18(36,37,51) 3. CANCEL THIS MSG 29 JUL 18.
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.
- Area bound by
- Introduces a list of positions that are the corners of an area — the polygon the warning applies to.
- 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
76 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 06 feb by r/v maria s. merian in area bound by 35-45.00N 008-00.00W,…2024-01-29
- Underwater operations 281200Z dec until further notice by M/V joides resolution in vicinity 36-42.00N…2023-12-28
- Survey operations in progress until 192300Z mar by M/V ramon margalef in area bound by: 35-48.0N 007-34.0W,…2023-03-14
- Underwater operations in progress until further notice by M/V joides resolution in 37-57.60N 009-31.00W2022-11-30
- Underwater operations in progress until further notice by M/V joides resolution in 37-34.00N 010-07.70W2022-11-16
- Underwater operations in progress until further notice by M/V joides resolution in 37-34.90N 010-21.50W2022-11-01
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
- Derelict vessel adriftDerelicts · 55.4 nm
Worldwide in the collected sources
55 survey operations listed in force · see all
Record snapshot 2026-10-02 07:46Z; 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.