Surveys

Underwater operations in progress until further notice by M/V northern admiral vicinity of trackline between…

HYDROLANT 2319/99

issued
1999-10-30 18:25Z
status
cancelled 1999-11-02 09:10Z (archive)
cancels
HYDROLANT 2292/99
authority
WZ 1935/99 301758Z OCT 1999
sea
North Sea
position
51.325, 2.858
source
nga_json · first seen 2026-08-17 13:38Z

Original warning text

1. UNDERWATER OPERATIONS IN PROGRESS UNTIL FURTHER NOTICE
   BY M/V NORTHERN ADMIRAL VICINITY OF TRACKLINE BETWEEN
   51-20N 002-50E AND 51-19N 002-53E.
   WIDE BERTH REQUESTED.
2. CANCEL HYDROLANT 2292/99.

This area · survey operations

459 within 180 nm since 1997 · 0 in the last 12 months · 0 in force now

97
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23

Season · when survey operations happen here

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M
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month of issue, all years in the archive

Timeline

Nearby now · within 120 nm

Nothing else in force within 120 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.