Surveys
Underwater operations in progress until further notice by M/V explorer and M/V loyal helper in area bound by…
HYDROLANT 1659/01
- issued
- 2001-06-08 07:41Z
- status
- cancelled 2001-06-10 19:41Z (archive)
- authority
- WZ 1256/01 080636Z JUN 01
- sea
- English Channel
- position
- 50.417, 0.490
- source
- nga_json · first seen 2026-08-17 13:38Z
Original warning text
UNDERWATER OPERATIONS IN PROGRESS UNTIL FURTHER NOTICE BY M/V EXPLORER AND M/V LOYAL HELPER IN AREA BOUND BY 50-19N 000-06E, 50-28N 000-06E, 50-35N 000-41E, 50-17N 000-55E, 50-19N 000-37E. WIDE BERTH REQUESTED.
This area · survey operations
529 within 180 nm since 1999 · 0 in the last 12 months · 0 in force now
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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
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month of issue, all years in the archive
Timeline
- Cancel HYDROLANT 1659/01 and this msg, operations completedcancelled by · 2001-06-10
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.