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Cancel HYDROLANT 3839/17 and this msg, operations completed

Gulf of Guinea · Nigeria · HYDROLANT 176/18

issued: 2018-01-15 16:09Z
status: cancelled 2018-01-15 16:09Z (archive)
cancels: HYDROLANT 3839/17
authority: NAVAREA II 20/18 151601Z JAN 18.
source: nga_json · first seen 2026-08-17 13:38Z

Original warning text

GULF OF GUINEA.
NIGERIA.
DNC 01.
CANCEL HYDROLANT 3839/17 AND THIS MSG,
OPERATIONS COMPLETED.

Timeline

Survey operations in progress until 012359Z feb 18 by M/V ramform atlas towing 12 three mile long cables in…cancels · 2017-11-27
Survey operations in progress until 012359Z feb 18 by M/V ramform atlas towing 12 three mile long cables in…replaced · 2017-11-27

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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.