Surveys

Underwater operations 081700Z to 090300Z jun by M/V marion dufresne in 42-30N 010-00W

HYDROLANT 992/04

issued
2004-06-08 17:50Z
status
cancelled 2004-06-09 04:00Z (archive)
self-cancels
2004-06-09 04:00Z
authority
NAVAREA II 194/04 081734Z JUN 04
sea
North Atlantic Ocean
position
42.500, -10.000
source
nga_json · first seen 2026-08-17 13:38Z

Original warning text

1. UNDERWATER OPERATIONS 081700Z TO 090300Z JUN BY
   M/V MARION DUFRESNE IN 42-30N 010-00W.
   WIDE BERTH REQUESTED.
2. CANCEL THIS MSG 090400Z JUN.

Activity windows · 1 in this warning

opens (UTC)closes (UTC)locallength
2004-06-08 17:00Z2004-06-09 03:00Z10 h

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

54 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

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.