Surveys

Survey operations 19 thru 25 apr in area bound by 48-00.00N 009-29.00W, 48-00.00N 007-56.00W, 46-54.00N…

Celtic Sea · Eastern North Atlantic · HYDROLANT 831/23

issued
2023-04-17 18:48Z
status
cancelled 2023-04-26 00:01Z (archive)
self-cancels
2023-04-26 00:01Z
authority
AVURNAV BREST 124/23 171844Z APR 23.
position
47.450, -8.708
source
nga_json · first seen 2026-08-17 13:38Z

Original warning text

CELTIC SEA.
EASTERN NORTH ATLANTIC.
DNC 08.
1. SURVEY OPERATIONS 19 THRU 25 APR
   IN AREA BOUND BY
   48-00.00N 009-29.00W, 48-00.00N 007-56.00W,
   46-54.00N 007-56.00W, 46-54.00N 009-29.00W.
   WIDE BERTH REQUESTED.
2. CANCEL THIS MSG 260001Z APR 23.

This area · survey operations

315 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

73 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.