Surveys
Underwater operations in progress until further notice by M/V toisa gryphon vicinity of trackline joining…
HYDROLANT 1479/00
- issued
- 2000-04-26 20:35Z
- status
- cancelled 2000-04-28 23:37Z (archive)
- cancels
- HYDROLANT 1446/00
- authority
- WZ 764/00 261940Z APR 00; WZ 763/00 261758Z APR 00
- position
- 51.085, 1.873
- source
- nga_json · first seen 2026-08-17 13:38Z
Original warning text
1. UNDERWATER OPERATIONS IN PROGRESS UNTIL FURTHER NOTICE BY M/V TOISA GRYPHON VICINITY OF TRACKLINE JOINING 51-15N 002-14E, 51-11N 002-07E, 51-05N 001-48E, 50-53N 001-32E. WIDE BERTH REQUESTED. 2. CANCEL HYDROLANT 1446/00(36), AID RESTORED.
This area · survey operations
471 within 180 nm since 1997 · 0 in the last 12 months · 0 in force now
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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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A
M
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month of issue, all years in the archive
Timeline
- Rockabill light 53-36N 006-00W unreliablecancels · 2000-04-24
- Rockabill light 53-36N 006-00W unreliablereplaced · 2000-04-24
- Underwater operations in progress until further notice by M/V toisa gryphon vicinity of trackline joining…cancelled by · 2000-04-28
Nearby now · within 120 nm
- Sandettie west buoy 51-15.1N 001-54.5E missingNav aids · 10.1 nm
- Goodwin sands eastwardsNav aids · 13 nm
- Turbine G27, 52-19.8N 002-33.5E, fog signal inoperativeNav aids · 79 nm
- Mid haisbro buoy 52-54.2N 001-41.6E unlitNav aids · 109.4 nm
- Leman gas fieldNav aids · 119.2 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.