Surveys
Underwater operations in progress until further notice by M/V bligh vicinity of trackline joining 52-08N…
HYDROLANT 2431/99
- issued
- 1999-11-12 16:28Z
- status
- cancelled 1999-11-29 11:10Z (archive)
- cancels
- HYDROLANT 2428/99
- authority
- 1. WZ 2016/99 121347Z NOV 99; 2. WZ 2013/99 121126Z NOV 99
- position
- 51.064, -6.186
- source
- nga_json · first seen 2026-08-17 13:38Z
Original warning text
1. UNDERWATER OPERATIONS IN PROGRESS UNTIL FURTHER NOTICE BY M/V BLIGH VICINITY OF TRACKLINE JOINING 52-08N 006-30W, 50-39N 006-06W, 50-15N 005-55W, 50-05N 005-43W. WIDE BERTH REQUESTED. 2. CANCEL HYDROLANT 2428/99(37), AID RESTORED.
This area · survey operations
723 within 180 nm since 1999 · 0 in the last 12 months · 0 in force now
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- Survey operations in progress until 20 jul by M/V celtic explorer in vicinity of trackline joining 47-30.00N…2023-06-14
- Underwater operations 180800Z to 192200Z nov by M/V willchallenge in vicinity of 50-19.0N 004-14.7W2022-11-17
- 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
- Survey operations in progress until 10 sep by M/V laperouse and M/V borda along trackline joining 48-27.48N…2022-09-01
- Underwater operations in progress until further notice by unmanned submersible ALR4 in vicinity of trackline…2022-06-10
- Underwater operations in progress until further notice by submersible in vicinity of trackline joining…2022-05-10
Season · when survey operations happen here
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month of issue, all years in the archive
Timeline
- Southeast goodwin buoy 51-13N 001-35E unlitreplaced · 1999-11-12
- Cap bon light 37-04.7N 011-02.6E unlitcancelled by · 1999-11-29
Nearby now · within 120 nm
- Fowey light 50-19.60N 004-38.90W unreliableNav aids · 73.3 nm
Worldwide now
73 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.