Surveys

Oceanographic operations 05 thru 10 nov by M/V alliance in area between 41-10N 41-30N and 11-00E 11-40E

HYDROLANT 2338/99

issued: 1999-11-03 14:52Z
status: cancelled 1999-11-12 10:20Z (archive)
authority: MARIDIPART LA SPEZIA 643/99 031205A NOV 99
source: nga_json · first seen 2026-08-17 13:38Z

Original warning text

OCEANOGRAPHIC OPERATIONS 05 THRU 10 NOV BY M/V ALLIANCE
IN AREA BETWEEN 41-10N 41-30N AND 11-00E 11-40E.

Timeline

HYDROLANT messages in force 120900Z nov 1999cancelled by · 1999-11-12

Nearby now · within 120 nm

Nothing else in force within 120 nm.

Worldwide now

73 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.