Surveys

Underwater operations in progress until further notice by M/V uilenspiegel and c/s responder in vicinity of…

North Sea · England · HYDROLANT 1797/22

issued: 2022-07-18 17:59Z
status: cancelled 2022-07-28 22:08Z (archive)
cancels: HYDROLANT 1734/22
authority: WZ 740/22 181601Z JUL 22.
position: 52.790, 2.863
source: nga_json · first seen 2026-08-17 13:38Z

Original warning text

NORTH SEA.
ENGLAND.
DNC 20, DNC 21.
1. UNDERWATER OPERATIONS IN PROGRESS UNTIL FURTHER
   NOTICE BY M/V UILENSPIEGEL AND C/S RESPONDER IN VICINITY OF
   TRACKLINE JOINING
   52-42.90N 002-14.50E, 52-46.20N 003-02.90E,
   52-52.80N 003-13.10E, 52-53.30N 003-20.20E,
   52-58.60N 003-26.50E.
   WIDE BERTH REQUESTED.
2. CANCEL HYDROLANT 1734/22.

This area · survey operations

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

Season · when survey operations happen here

month of issue, all years in the archive

Timeline

Underwater operations in progress until further notice by M/V uilenspiegel in vicinity of trackline joining…cancels · 2022-07-09
Underwater operations in progress until further notice by M/V uilenspiegel in vicinity of trackline joining…replaced · 2022-07-09
Cancel HYDROLANT 1797/22 and this msg, operations completedcancelled by · 2022-07-28

Nearby now · within 120 nm

Nothing else in force within 120 nm.

Worldwide now

73 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.