Surveys

Underwater operations in progress until 25 oct by unmanned four meter vessel, yellow hull, and seven…

Eastern North Atlantic · North Sea · Orkney Islands · HYDROLANT 3231/18

issued: 2018-10-15 00:06Z
status: cancelled 2018-10-26 00:01Z (archive)
authority: WZ 1105/18 142350Z OCT 18.
source: nga_json · first seen 2026-08-17 13:38Z

Original warning text

EASTERN NORTH ATLANTIC.
NORTH SEA.
ORKNEY ISLANDS.
DNC 20.
1. UNDERWATER OPERATIONS IN PROGRESS UNTIL 25 OCT
   BY UNMANNED FOUR METER VESSEL, YELLOW HULL,
   AND SEVEN SUBMERSIBLES IN AREA BETWEEN
   58-30N 59-30N AND 002-40W 000-00W.
   WIDE BERTH REQUESTED.
2. CANCEL THIS MSG 26 OCT 18.

Nearby now · within 120 nm

Nothing else in force within 120 nm.

Worldwide now

84 survey operations in force · see all

Surveys

Hydrographic and scientific survey vessels, often towing long arrays. All current survey operations →

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.