Surveys

Underwater operations 18 to 29 apr by M/V poseidon area bound by 20-00N 017-30W

HYDROLANT 648/08

issued
2008-04-16 17:39Z
status
cancelled 2008-04-30 00:00Z (archive)
authority
NAVAREA II 130/08 161631Z APR 08.
sea
North Atlantic Ocean
position
20.000, -17.500
source
nga_json · first seen 2026-08-17 13:38Z

Original warning text

1. UNDERWATER OPERATIONS 18 TO 29 APR BY M/V POSEIDON
   AREA BOUND BY 20-00N 017-30W.
   WIDE BERTH REQUESTED.
2. CANCEL THIS MSG 30 APR.

This area · survey operations

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

07
10
15
20
23

Season · when survey operations happen here

J
F
M
A
M
J
J
A
S
O
N
D

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.