Underwater operations 09 aug by M/V l'atalante with submersible in 37-50N 017-20W
North Atlantic Ocean · HYDROLANT 1245/11
What this record establishes
Archived notice · 2011-08-08 12:36Z
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 245/11 070003Z AUG 11 - MARINE GUYANE ARIANE V203 070019Z AUG 11.. Issued 2011-08-07 06:27Z. 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 parsed report position is 37.833, -17.333. It is a position in the source message, not a live location. Check the original wording for limits and qualifications.
Related notices and cancellation links
- Hazardous operations 03 aug thru 03 sep commencing daily: a. 1630Z to 0001Z in area bound by 05-22N 052-52W,…cancelled by this notice
- Hazardous operations 2059Z to 0016Z commencing daily 03 aug thru 03 sep in area bound by 00-18N 000-40W,…cancelled by this notice
- Underwater operations 091000Z to 091800Z aug by M/V l'atalante with submersible in 37-25N 019-30Wlater cancellation notice
Current notices and reporting history in the North Atlantic Ocean →
- issued
- 2011-08-07 06:27Z
- status
- Archived notice
- authority
- NAVAREA II 245/11 070003Z AUG 11 - MARINE GUYANE ARIANE V203 070019Z AUG 11.
- NAVAREA
- NAVAREA II · named as the source of this relay
- sea
- North Atlantic Ocean
- position
- 37.833, -17.333
- vessel
- M/V L'ATALANTE · 68 messages
- source
- NGA MSI broadcast-warn JSON (archive, frozen 2024-05) · first seen 2026-08-17 13:38Z
Original warning text
EASTERN NORTH ATLANTIC. 1. UNDERWATER OPERATIONS 09 AUG BY M/V L'ATALANTE WITH SUBMERSIBLE IN 37-50N 017-20W. FIVE MILE BERTH REQUESTED. 2. CANCEL HYDROLANT 1198/11(24) AND 1199/11(51,57), OPERATIONS COMPLETED. 3. CANCEL THIS MSG 10 AUG.
Reading this warning
- Underwater operations
- Divers or remotely operated vehicles are working below a vessel that cannot easily move out of the way.
- 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
6 within 180 nm since 2007 · 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 011200Z to 070100Z jul by M/V sarmiento de gamboa towing 6000 meter long cable along…2022-06-30
- Survey operations 13 thru 29 jun by M/V sarmiento de gamboa towing 300 meter submerged equipment along…2022-06-11
- Underwater operations in progess until 212359Z feb by M/V james cook in 38-32N 015-50W2017-02-20
- Underwater operations 091000Z to 091800Z aug by M/V l'atalante with submersible in 37-25N 019-30W2011-08-08
- Oceanographic operations in progress until further notice by M/V kommandor jack in vicinity 37-13N 018-37W2007-06-11
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
55 survey operations listed in force · see all
Record snapshot 2026-10-02 04:38Z; 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.