Surveys

Survey operations in progress until 072300Z oct by unmanned five meter vessel towing 25 meter long cable in…

Eastern North Atlantic · Shetland Islands · HYDROLANT 3180/17

issued: 2017-10-06 11:01Z
status: cancelled 2017-10-08 00:01Z (archive)
self-cancels: 2017-10-08 00:01Z
authority: WZ 1225/17 061000Z OCT 17.
sea: North Atlantic Ocean
position: 60.733, -1.265
source: nga_json · first seen 2026-08-17 13:38Z

Original warning text

EASTERN NORTH ATLANTIC.
SHETLAND ISLANDS.
DNC 20.
1. SURVEY OPERATIONS IN PROGRESS UNTIL 072300Z OCT
   BY UNMANNED FIVE METER VESSEL TOWING 25 METER
   LONG CABLE IN VICINITY OF TRACKLINE BETWEEN
   60-41.8N 001-14.1W AND 060-46.1N 001-17.7W.
   WIDE BERTH REQUESTED.
2. CANCEL THIS MSG 080001Z OCT 17.

This area · survey operations

122 within 180 nm since 2000 · 4 in the last 12 months · 2 in force now

Season · when survey operations happen here

month of issue, all years in the archive

Nearby now · within 120 nm

Noup head light 59-19.90N 003-04.20W range reduced to 12 milesNav aids · 100 nm
Survey operations in progress until further notice by M/V ramform atlas towing 17 3600 meter long cables in…Surveys · 106.5 nm

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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.