Surveys

Survey operations 28 thru 30 jul by M/V alliance and t/b manning towing equipment 400 meters long at a depth…

HYDROLANT 1540/99

issued: 1999-07-26 18:06Z
status: cancelled 1999-07-31 06:00Z (archive)
authority: MARIDIPART LA SPEZIA 473/99 261513Z JUL 99
source: nga_json · first seen 2026-08-17 13:38Z

Original warning text

1. SURVEY OPERATIONS 28 THRU 30 JUL BY M/V ALLIANCE AND T/B MANNING
   TOWING EQUIPMENT 400 METERS LONG AT A DEPTH OF 100 METERS IN AREA
   BETWEEN 43-44N 43-34N AND 009-45E 010-00E.
2. CANCEL THIS MSG 31 JUL.

Nearby now · within 120 nm

Nothing else in force within 120 nm.

Worldwide now

84 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.