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Cancel HYDROLANT 1879/10 and this msg, survey completed

Eastern North Atlantic · Guinea-bissau · HYDROLANT 2411/10

issued: 2010-12-13 07:02Z
status: cancelled 2010-12-13 07:02Z (archive)
cancels: HYDROLANT 1879/10
authority: NAVAREA II 468/10 130545Z DEC 10.
source: nga_json · first seen 2026-08-17 13:38Z

Original warning text

EASTERN NORTH ATLANTIC.
GUINEA-BISSAU.
CANCEL HYDROLANT 1879/10 AND THIS MSG, SURVEY COMPLETED.

Timeline

Seismic survey in progress until further notice by M/V ramform challenger towing eight 7000 meter long…cancels · 2010-10-03
Seismic survey in progress until further notice by M/V ramform challenger towing eight 7000 meter long…replaced · 2010-10-03

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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.