Surveys

Underwater operations 200001Z to 202359Z nov by M/V thalassa in area bound by 48-00N 007-40W, 48-00N…

HYDROLANT 2079/06

issued
2006-11-17 10:45Z
status
cancelled 2006-11-21 01:00Z (archive)
self-cancels
2006-11-21 01:00Z
authority
NAVAREA II 369/06 171015Z NOV 06.
sea
Celtic Sea
position
47.667, -6.833
source
nga_json · first seen 2026-08-17 13:38Z

Original warning text

1. UNDERWATER OPERATIONS 200001Z TO 202359Z NOV
   BY M/V THALASSA IN AREA BOUND BY
   48-00N 007-40W, 48-00N 006-20W,
   47-40N 006-20W, 47-40N 006-00W,
   47-20N 006-00W, 47-20N 007-20W,
   47-40N 007-20W, 47-40N 007-40W.
   WIDE BERTH REQUESTED.
2. CANCEL THIS MSG 210100Z NOV.

Activity windows · 1 in this warning

opens (UTC)closes (UTC)locallength
2006-11-20 00:01Z2006-11-20 23:59Z23 h 58

Parsed from the warning text; outside these windows the area is normally not active, but the warning stays in force until cancelled.

This area · survey operations

483 within 180 nm since 1999 · 0 in the last 12 months · 0 in force now

99
00
05
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

83 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.