Surveys
Underwater operations in progress until further notice by M/V neftegaz 31 vicinity of trackline between…
HYDROLANT 4230/00
- issued
- 2000-12-25 11:45Z
- status
- cancelled 2000-12-26 14:32Z (archive)
- cancels
- HYDROLANT 4223/00HYDROLANT 4226/00
- authority
- WZ 2449/00 250949Z DEC 00; WZ 2447/00 250846Z DEC 00; WZ 2446/00 250142Z DEC 00
- position
- 49.375, -4.317
- source
- nga_json · first seen 2026-08-17 13:38Z
Original warning text
1. UNDERWATER OPERATIONS IN PROGRESS UNTIL FURTHER NOTICE BY M/V NEFTEGAZ 31 VICINITY OF TRACKLINE BETWEEN 49-28N 004-38W AND 49-17N 004-00W. WIDE BERTH REQUESTED. 2. CANCEL HYDROLANT 4223/00, OPERATIONS SUSPENDED. 3. CANCEL HYDROLANT 4226/00(35), AID RESTORED.
This area · survey operations
741 within 180 nm since 1999 · 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
- Survey operations 072201Z to 112159Z jun by vessel nanoplon in area within one mile of 48-20.67N 008-22.08W2023-06-06
- Scientific mooring established in 47-04.22N 003-19.86W until 27 mar2023-03-21
- Oceanographic equipment temporarily established 20 thru 28 mar by M/V reborn in 47-04.22N 003-19.86W2023-03-18
- Survey operations 06 thru 11 jan by M/V belgica in area bound by 48-14.00N 005-05.00W, 47-28.00N 005-10.00W,…2023-01-04
- Underwater operations 180800Z to 192200Z nov by M/V willchallenge in vicinity of 50-19.0N 004-14.7W2022-11-17
Season · when survey operations happen here
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month of issue, all years in the archive
Timeline
- Underwater operations in progress until further notice by M/V ares within one mile of 51-19N 003-54Wcancels · 2000-12-24
- Heisker island light 57-32N 007-42W unreliablecancels · 2000-12-24
- Underwater operations in progress until further notice by M/V ares within one mile of 51-19N 003-54Wreplaced · 2000-12-24
- Heisker island light 57-32N 007-42W unreliablereplaced · 2000-12-24
- Underwater operations in progress until further notice by M/V neftegaz 31 vicinity of trackline between…cancelled by · 2000-12-26
Nearby now · within 120 nm
- Fowey light 50-19.60N 004-38.90W unreliableNav aids · 58.6 nm
- Fowey light 50-19.6N 004-38.9W unreliableNav aids · 58.6 nm
- Saint ives northwestwardsOther · 79.3 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.