Surveys
Underwater operations in progress until further notice by M/V highland fortress vicinity of trackline…
HYDROLANT 1863/00
- issued
- 2000-05-23 04:50Z
- status
- cancelled 2000-05-23 15:42Z (archive)
- cancels
- HYDROLANT 1756/00
- authority
- WZ 980/00 222311Z MAY; WZ 981/00 222322Z MAY 00
- sea
- Celtic Sea
- position
- 51.667, -6.450
- source
- nga_json · first seen 2026-08-17 13:38Z
Original warning text
1. UNDERWATER OPERATIONS IN PROGRESS UNTIL FURTHER NOTICE BY M/V HIGHLAND FORTRESS VICINITY OF TRACKLINE BETWEEN 51-17N 006-13W AND 52-03N 006-41W. WIDE BERTH REQUESTED. 2. CANCEL HYDROLANT 1756/00, OPERATIONS COMPLETED.
This area · survey operations
714 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
- Underwater operations in progress until further notice by M/V sea explorer vicinity of trackline joining…cancels · 2000-05-16
- Underwater operations in progress until further notice by M/V sea explorer vicinity of trackline joining…replaced · 2000-05-16
- Cancel HYDROLANT 1863/00 and this msg, operations suspendedcancelled by · 2000-05-23
Nearby now · within 120 nm
- Fowey light 50-19.60N 004-38.90W unreliableNav aids · 105.4 nm
Worldwide now
86 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.