Surveys

Underwater operations 150001Z to 312359Z jan by M/V tethys II in area bound by 41-40.0N 006-00.0E, 41-40.0N…

Western Mediterranean Sea · Sardinia · HYDROLANT 122/21

issued
2021-01-13 04:27Z
status
cancelled 2021-02-01 00:59Z (archive)
self-cancels
2021-02-01 00:59Z
authority
NAVAREA III 42/21 130100Z JAN 21.
sea
Mediterranean Sea - Western Basin
position
41.538, 6.383
source
nga_json · first seen 2026-08-17 13:38Z

Original warning text

WESTERN MEDITERRANEAN SEA.
SARDINIA.
DNC 08.
1. UNDERWATER OPERATIONS 150001Z TO 312359Z JAN
   BY M/V TETHYS II IN AREA BOUND BY
   41-40.0N 006-00.0E, 41-40.0N 006-40.0E,
   41-22.0N 006-40.0E, 41-20.1N 006-34.3E,
   41-32.5N 006-00.0E.
   WIDE BERTH REQUESTED.
2. CANCEL THIS MSG 010059Z FEB 21.

Activity windows · 1 in this warning

opens (UTC)closes (UTC)locallength
2021-01-15 00:01Z2021-01-31 23:59Z407 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

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

98
00
05
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15
20
24

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.