Surveys

Oceanographic operations 180001Z to 182359Z nov by M/V thalassa in: a. 48-42.41N 006-37.65W

Celtic Sea · HYDROLANT 3064/16

issued
2016-11-17 16:46Z
status
cancelled 2016-11-19 00:59Z (archive)
self-cancels
2016-11-19 00:59Z
authority
NAVAREA II 338/16 171645Z NOV 16.
sea
Celtic Sea
position
48.633, -6.498
source
nga_json · first seen 2026-08-17 13:38Z

Original warning text

CELTIC SEA.
DNC 19.
1. OCEANOGRAPHIC OPERATIONS 180001Z TO 182359Z NOV
   BY M/V THALASSA IN:
   A. 48-42.41N 006-37.65W.
   B. 48-47.14N 006-19.03W.
   C. 48-24.35N 006-32.91W.
   WIDE BERTH REQUESTED.
2. CANCEL THIS MSG 190059Z NOV 16.

Activity windows · 1 in this warning

opens (UTC)closes (UTC)locallength
2016-11-18 00:01Z2016-11-18 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

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

99
00
05
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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

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.