Surveys

Underwater operations 130800Z to 161800Z oct in area bound by 42-08.91N 006-40.67E, 42-09.27N 008-00.33E,…

Western Mediterranean Sea · Corsica · HYDROLANT 2521/21

issued
2021-10-13 00:22Z
status
cancelled 2021-10-16 19:00Z (archive)
self-cancels
2021-10-16 19:00Z
authority
NAVAREA III 747/21 121329Z OCT 21.
sea
Mediterranean Sea - Western Basin
position
41.703, 7.180
source
nga_json · first seen 2026-08-17 13:38Z

Original warning text

WESTERN MEDITERRANEAN SEA.
CORSICA.
DNC 08.
1. UNDERWATER OPERATIONS 130800Z TO 161800Z OCT
   IN AREA BOUND BY
   42-08.91N 006-40.67E, 42-09.27N 008-00.33E,
   41-40.19N 008-00.33E, 41-40.00N 008-16.00E,
   41-10.00N 007-01.00E, 41-31.17N 006-00.84E,
   41-39.11N 005-59.88E, 41-40.00N 006-40.00E.
   WIDE BERTH REQUESTED.
2. CANCEL THIS MSG 161900Z OCT 21.

Activity windows · 1 in this warning

opens (UTC)closes (UTC)locallength
2021-10-13 08:00Z2021-10-16 18:00Z82 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

212 within 180 nm since 1998 · 0 in the last 12 months · 0 in force now

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Season · when survey operations happen here

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A
M
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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.