Surveys

Survey operations in progress until 302359Z jun 18 by M/V oceanic sirius towing five mile long cables in…

Eastern North Atlantic · Mauritania · HYDROLANT 3909/17

issued
2017-12-04 17:40Z
status
cancelled 2018-07-01 00:59Z (archive)
self-cancels
2018-07-01 00:59Z
authority
NAVAREA II 451/17 041652Z DEC 17.
sea
North Atlantic Ocean
position
19.116, -18.020
source
nga_json · first seen 2026-08-17 13:38Z

Original warning text

EASTERN NORTH ATLANTIC.
MAURITANIA.
DNC 01.
1. SURVEY OPERATIONS IN PROGRESS UNTIL
   302359Z JUN 18 BY M/V OCEANIC SIRIUS
   TOWING FIVE MILE LONG CABLES IN AREA
   BOUND BY
   19-52N 018-48W, 19-52N 017-22W,
   18-30N 017-00W, 18-22N 018-53W.
   SIX MILE BERTH REQUESTED.
2. CANCEL THIS MSG 010059Z JUL 18.

This area · survey operations

19 within 180 nm since 2007 · 0 in the last 12 months · 0 in force now

07
10
15
20
21

Season · when survey operations happen here

J
F
M
A
M
J
J
A
S
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month of issue, all years in the archive

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.