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Cancel HYDROLANT 1690/11 and this msg

Eastern South Atlantic · Angola · HYDROLANT 2193/11

issued: 2011-12-19 10:35Z
status: cancelled 2011-12-19 10:35Z (archive)
cancels: HYDROLANT 1690/11
authority: NAVAREA VII 240/11 190637Z DEC 11.
source: nga_json · first seen 2026-08-17 13:38Z

Original warning text

EASTERN SOUTH ATLANTIC.
ANGOLA.
CANCEL HYDROLANT 1690/11 AND THIS MSG.

Timeline

Seismic survey in progress until further notice by M/V ramform valiant in area bound by 07-13.2S 011-41.6E,…cancels · 2011-10-15
Seismic survey in progress until further notice by M/V ramform valiant in area bound by 07-13.2S 011-41.6E,…replaced · 2011-10-15

Nearby now · within 120 nm

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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.