Surveys

Underwater operations 121000Z feb to 082200Z mar in area bound by 40-34.67N 024-22.77E, 40-09.17N…

Aegean Sea · HYDROLANT 493/20

issued
2020-02-11 13:36Z
status
cancelled 2020-03-08 23:00Z (archive)
self-cancels
2020-03-08 23:00Z
authority
NAVAREA III 195/20 111308Z FEB 20.
sea
Aegean Sea
position
40.416, 24.817
source
nga_json · first seen 2026-08-17 13:38Z

Original warning text

AEGEAN SEA.
DNC 09.
1. UNDERWATER OPERATIONS 121000Z FEB TO
   082200Z MAR IN AREA BOUND BY
   40-34.67N 024-22.77E, 40-09.17N 024-27.90E,
   40-25.26N 024-34.33E, 40-19.59N 025-12.43E,
   40-20.95N 025-37.61E.
2. CANCEL THIS MSG 082300Z MAR 20.

Activity windows · 1 in this warning

opens (UTC)closes (UTC)locallength
2020-02-12 10:00Z2020-03-08 22:00Z612 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

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

99
00
05
10
15
20
22

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

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.