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Cancel HYDROLANT 1815/15 and this msg, survey completed

North Sea · HYDROLANT 1959/15

issued: 2015-08-11 09:46Z
status: cancelled 2015-08-11 09:46Z (archive)
cancels: HYDROLANT 1815/15
authority: NAVAREA I 228/15 110910Z AUG 15.
source: nga_json · first seen 2026-08-17 13:38Z

Original warning text

NORTH SEA.
DNC 20.
CANCEL HYDROLANT 1815/15 AND THIS MSG, SURVEY COMPLETED.

Timeline

Seismic survey in progress until further notice by M/V ramform challenger towing 12 7500 meter long cables…cancels · 2015-07-23
Seismic survey in progress until further notice by M/V ramform challenger towing 12 7500 meter long cables…replaced · 2015-07-23

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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.