Surveys
Underwater operations in progress until further notice by M/V discovery within: a. one mile of 51-52.9N…
England-southeast Coast · HYDROLANT 503/11
- issued
- 2011-03-25 18:18Z
- status
- cancelled 2011-03-29 09:08Z (archive)
- authority
- WZ 342/11 241955Z MAR 11.
- sea
- North Sea
- position
- 51.859, 1.558
- source
- nga_json · first seen 2026-08-17 13:38Z
Original warning text
ENGLAND-SOUTHEAST COAST. UNDERWATER OPERATIONS IN PROGRESS UNTIL FURTHER NOTICE BY M/V DISCOVERY WITHIN: A. ONE MILE OF 51-52.9N 001-33.9E. B. 1.4 MILES OF 51-50.2N 001-33.0E. WIDE BERTH REQUESTED.
This area · survey operations
491 within 180 nm since 1997 · 0 in the last 12 months · 0 in force now
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- Survey operations in progress until further notice by M/V mintaka I in vicinity of trackline joining…2023-08-06
- Underwater operations in progress until further notice by M/V uilenspiegel and c/s responder in vicinity of…2022-07-18
- Survey operations in progress until further notice by M/V nora b in vicinity of trackline joining 51-22.80N…2022-07-16
- Survey operations in progress until further notice by M/V nora b in vicinity of trackline joining 50-46.80N…2022-07-12
- Underwater operations in progress until further notice by M/V uilenspiegel in vicinity of trackline joining…2022-07-09
- Underwater operations in progress until further notice by M/V havila phoenix in vicinity of trackline…2022-05-11
Season · when survey operations happen here
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month of issue, all years in the archive
Timeline
- Cancel HYDROLANT 503/11 and this msg, operations suspendedcancelled by · 2011-03-29
Nearby now · within 120 nm
Nothing else in force within 120 nm.
Worldwide now
84 survey operations in force · see all
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.