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Cancel HYDROLANT 21/11 and this msg, ordnance removed

Southern North Sea · Ordnance · HYDROLANT 237/11

issued: 2011-02-09 01:10Z
status: cancelled 2011-02-09 01:10Z (archive)
cancels: HYDROLANT 21/11
authority: WZ 187/11 090021Z FEB 11.
source: nga_json · first seen 2026-08-17 13:38Z

Original warning text

SOUTHERN NORTH SEA.
ORDNANCE.
CANCEL HYDROLANT 21/11 AND THIS MSG, ORDNANCE REMOVED.

Timeline

Nga chart 37166 (2ND ed)cancels · 2011-01-05
Nga chart 37166 (2ND ed)replaced · 2011-01-05

Nearby now · within 120 nm

Nothing else in force within 120 nm.

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Other

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.