Surveys
Underwater operations in progress until further notice by M/V highland fortress with submersible between…
HYDROLANT 387/99
- issued
- 1999-02-23 22:25Z
- status
- cancelled 1999-02-27 00:00Z (archive)
- sea
- English Channel
- position
- 51.092, 1.450
- source
- nga_json · first seen 2026-08-17 13:38Z
Original warning text
UNDERWATER OPERATIONS IN PROGRESS UNTIL FURTHER NOTICE BY M/V HIGHLAND FORTRESS WITH SUBMERSIBLE BETWEEN 51-03N 001-24E AND 51-08N 001-30E. WIDE BERTH REQUESTED.
This area · survey operations
485 within 180 nm since 1997 · 0 in the last 12 months · 0 in force now
97
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15
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23
- Survey operations in progress until further notice by M/V mintaka I in vicinity of trackline joining…2023-08-06
- 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
- Underwater operations in progress until further notice by M/V uilenspiegel and c/s responder in vicinity of…2022-07-18
- Survey operations in progress until further notice by M/V nora b in vicinity of trackline joining 51-22.80N…2022-07-16
- Survey operations in progress until further notice by M/V nora b in vicinity of trackline joining 50-46.80N…2022-07-12
- Underwater operations in progress until further notice by M/V uilenspiegel in vicinity of trackline joining…2022-07-09
Season · when survey operations happen here
J
F
M
A
M
J
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month of issue, all years in the archive
Timeline
- Cancel HYDROLANT 387/99 and this msg, operations completedcancelled by · 1999-02-27
Nearby now · within 120 nm
Nothing else in force within 120 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.