Surveys
Underwater operations in progress until further notice in areas: a. bound by 51-28.1N 001-03.2E, 51-28.4N…
HYDROLANT 1450/04
- issued
- 2004-09-04 17:55Z
- status
- cancelled 2004-10-20 10:54Z (archive)
- authority
- NAVAREA I 319/04 041430Z SEP 04.
- position
- 51.460, 1.093
- source
- nga_json · first seen 2026-08-17 13:38Z
Original warning text
UNDERWATER OPERATIONS IN PROGRESS UNTIL FURTHER NOTICE IN AREAS: A. BOUND BY 51-28.1N 001-03.2E, 51-28.4N 001-06.4E, 51-27.1N 001-08.0E, 51-26.8N 001-04.8E. B. ALONG TRACKLINE BETWEEN 51-26.9N 001-06.2E AND 51-22.3N 001-06.2E.
This area · survey operations
502 within 180 nm since 1997 · 0 in the last 12 months · 0 in force now
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05
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15
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23
- Survey operations in progress until further notice by M/V mintaka I in vicinity of trackline joining…2023-08-06
- Survey operations 15 sept thru 20 oct by M/V thlassa in vicinity of trackline joining 48-30.00N 006-00.00W,…2022-09-14
- 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
Season · when survey operations happen here
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month of issue, all years in the archive
Timeline
- HYDROLANT messages in force 200800Z oct 2004cancelled by · 2004-10-20
Nearby now · within 120 nm
- Goodwin sands eastwardsNav aids · 24 nm
- Sandettie west buoy 51-15.1N 001-54.5E missingNav aids · 33 nm
- Turbine G27, 52-19.8N 002-33.5E, fog signal inoperativeNav aids · 75.3 nm
- Mid haisbro buoy 52-54.2N 001-41.6E unlitNav aids · 89.4 nm
- Leman gas fieldNav aids · 104.5 nm
- Lincs wind farmNav aids · 109.5 nm
- Platform southwark 53-11.0N 002-05.8E unlit and all navaids inoperativeNav aids · 109.8 nm
Worldwide now
75 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.