Surveys
Underwater operations in progress until further notice by M/V havila reel vicinity of trackline between…
HYDROLANT 1118/01
- issued
- 2001-04-10 16:50Z
- status
- cancelled 2001-04-13 09:35Z (archive)
- authority
- WZ 830/01 101522Z APR 01
- position
- 51.396, -6.381
- source
- nga_json · first seen 2026-08-17 13:38Z
Original warning text
UNDERWATER OPERATIONS IN PROGRESS UNTIL FURTHER NOTICE BY M/V HAVILA REEL VICINITY OF TRACKLINE BETWEEN 51-23.7N 006-30.4W AND 51-23.8N 006-15.3W. WIDE BERTH REQUESTED.
This area · survey operations
711 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 sw amundsen towing seven 2200 meter long cables in…2024-04-18
- 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
- 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
- Survey operations in progress until further notice by M/V sw bly towing four 2300 meter long cables, marked…2022-05-08
Season · when survey operations happen here
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month of issue, all years in the archive
Timeline
- HYDROLANT messages in force 130900Z apr 2001cancelled by · 2001-04-13
Nearby now · within 120 nm
- Saint ives northwestwardsOther · 66.9 nm
- Fowey light 50-19.60N 004-38.90W unreliableNav aids · 91.8 nm
- Fowey light 50-19.6N 004-38.9W unreliableNav aids · 91.8 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.