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Cancel HYDROLANT 711/18 and this msg, operations completed

Gulf of Guinea · HYDROLANT 878/18

issued: 2018-03-12 15:38Z
status: cancelled 2018-03-12 15:38Z (archive)
cancels: HYDROLANT 711/18
authority: NAVAREA II 128/18 121107Z MAR 18.
source: nga_json · first seen 2026-08-17 13:38Z

Original warning text

GULF OF GUINEA.
DNC 01.
CANCEL HYDROLANT 711/18 AND THIS MSG,
OPERATIONS COMPLETED.

Timeline

Hazardous operations 1638Z to 1742Z daily 06 thru 31 mar in area bound by 05-29N 050-14W, 05-29N 049-36W,…cancels · 2018-03-01
Hazardous operations 1638Z to 1742Z daily 06 thru 31 mar in area bound by 05-29N 050-14W, 05-29N 049-36W,…replaced · 2018-03-01

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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.