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Cancel HYDROLANT 3985/17 and this msg, operations suspended

North Sea · Dover Strait · England · HYDROLANT 3995/17

issued: 2017-12-11 09:31Z
status: cancelled 2017-12-11 09:31Z (archive)
cancels: HYDROLANT 3985/17
authority: WZ 1541/17 110724Z DEC 17.
source: nga_json · first seen 2026-08-17 13:38Z

Original warning text

NORTH SEA.
DOVER STRAIT.
ENGLAND.
DNC 20.
CANCEL HYDROLANT 3985/17 AND THIS MSG,
OPERATIONS SUSPENDED.

Timeline

Underwater operations in progress until further notice by M/V deep helder in vicinity of trackline between…cancels · 2017-12-09
Underwater operations in progress until further notice by M/V deep helder in vicinity of trackline between…replaced · 2017-12-09

Nearby now · within 120 nm

Nothing else in force within 120 nm.

Worldwide now

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Other

Everything the classifier did not place elsewhere. All current other warnings →

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.