Surveys

Underwater operations in progress until 262359Z dec in areas bound by: a. 35-15.0N 023-15.0E, 38-00.0N…

Eastern Mediterranean Sea · Greece · Ionian Sea · HYDROLANT 3996/18

issued
2018-12-22 16:56Z
status
cancelled 2018-12-27 00:59Z (archive)
self-cancels
2018-12-27 00:59Z
cancels
HYDROLANT 3993/18
authority
NAVAREA III 1096/18 221557Z DEC 18.
sea
Mediterranean Sea - Eastern Basin
position
35.875, 21.416
source
nga_json · first seen 2026-08-17 13:38Z

Original warning text

EASTERN MEDITERRANEAN SEA.
GREECE.
IONIAN SEA.
DNC 09, DNC 10.
1. UNDERWATER OPERATIONS IN PROGRESS UNTIL
   262359Z DEC IN AREAS BOUND BY:
   A. 35-15.0N 023-15.0E, 38-00.0N 020-00.0E,
      38-00.0N 019-00.0E, 36-30.0N 019-00.0E,
      34-37.2N 022-58.2E.
   B. 35-15.0N 023-15.0E, 34-15.0N 028-40.0E,
      33-56.0N 030-00.0E, 33-30.0N 030-00.0E,
      34-00.0N 027-10.0E, 34-00.0N 024-10.0E,
      34-37.2N 022-58.2E.
   WIDE BERTH REQUESTED.
2. CANCEL HYDROLANT 3993/18.
3. CANCEL THIS MSG 270059Z DEC 18.

This area · survey operations

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

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Season · when survey operations happen here

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month of issue, all years in the archive

Timeline

Nearby now · within 120 nm

Nothing else in force within 120 nm.

Worldwide now

83 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.