Surveys

Oceanographic operations by M/V thalassa: a. 060001Z to 062359Z nov in area bound by 47-48.50N 006-25.55W,…

Celtic Sea · France-northwest Coast · HYDROLANT 2939/16

issued
2016-11-06 16:17Z
status
cancelled 2016-11-09 00:59Z (archive)
self-cancels
2016-11-09 00:59Z
cancels
HYDROLANT 2932/16
authority
NAVAREA II 320/16 061602Z NOV 16.
sea
Celtic Sea
position
47.784, -6.788
source
nga_json · first seen 2026-08-17 13:38Z

Original warning text

CELTIC SEA.
FRANCE-NORTHWEST COAST.
DNC 08, DNC 19.
1. OCEANOGRAPHIC OPERATIONS BY M/V THALASSA:
   A. 060001Z TO 062359Z NOV IN AREA BOUND BY
      47-48.50N 006-25.55W, 47-45.84N 005-54.77W,
      47-38.79N 005-37.15W, 47-30.13N 006-38.06W.
   B. 070001Z TO 072359Z NOV IN AREA BOUND BY
      48-08.61N 007-55.51W, 47-57.53N 007-27.47W,
      47-46.77N 007-30.95W, 48-02.48N 008-06.56W.
   C. 080001Z TO 082359Z NOV IN 48-20.15N 008-18.92W.
   WIDE BERTH REQUESTED.
2. CANCEL HYDROLANT 2932/16.
3. CANCEL THIS MSG 090059Z NOV 16.

Activity windows · 3 in this warning

opens (UTC)closes (UTC)locallength
2016-11-06 00:01Z2016-11-06 23:59Z23 h 58
2016-11-07 00:01Z2016-11-07 23:59Z23 h 58
2016-11-08 00:01Z2016-11-08 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

519 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

Timeline

Nearby now · within 120 nm

Nothing else in force within 120 nm.

Worldwide now

86 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.