Surveys
Underwater operations in progress until further notice by M/V neftegaz 31 vicinity of trackline between…
HYDROLANT 3159/01
- issued
- 2001-12-12 13:57Z
- status
- cancelled 2001-12-17 14:00Z (archive)
- cancels
- HYDROLANT 3142/01
- authority
- WZ 2323/01 121301Z DEC 01; NAVAREA V 1826/01
- sea
- Celtic Sea
- position
- 49.867, -7.275
- 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 50-05N 007-08W AND 49-39N 007-25W. WIDE BERTH REQUESTED. 2. CANCEL HYDROLANT 3142/01(24).
This area · survey operations
760 within 180 nm since 1999 · 0 in the last 12 months · 0 in force now
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23
- Underwater operations 02 thru 11 oct by M/V atalante in area bound by 47-26.59N 006-34.33W, 46-52.40N…2023-09-29
- Survey operations 072201Z to 112159Z jun by vessel nanoplon in area within one mile of 48-20.67N 008-22.08W2023-06-06
- Survey operations 19 thru 25 apr in area bound by 48-00.00N 009-29.00W, 48-00.00N 007-56.00W, 46-54.00N…2023-04-17
- 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
- Survey operations 27 oct thru 02 nov 22 along trackline joining 48-04.62N 009-30.35W, 47-27.00N 008-32.00W,…2022-10-25
Season · when survey operations happen here
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month of issue, all years in the archive
Timeline
- M/V aurora emerald suffered explosion and fire in 03-38N 049-02W at 101117Z deccancels · 2001-12-11
- M/V aurora emerald suffered explosion and fire in 03-38N 049-02W at 101117Z decreplaced · 2001-12-11
- Underwater operations in progress until further notice by M/V neftegaz 31 vicinity of trackline between…cancelled by · 2001-12-17
Nearby now · within 120 nm
- Fowey light 50-19.60N 004-38.90W unreliableNav aids · 104.9 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.