Surveys

Oceanographic operations 200500Z to 202000Z apr by M/V alliance towing equipment at a depth of 300 meters in…

HYDROLANT 1377/00

issued
2000-04-18 17:00Z
status
cancelled 2000-04-20 21:00Z (archive)
self-cancels
2000-04-20 21:00Z
authority
MARIDIPART LA SPEZIA 132/00 181240Z APR 00
source
nga_json · first seen 2026-08-17 13:38Z

Original warning text

1. OCEANOGRAPHIC OPERATIONS 200500Z TO 202000Z APR BY M/V ALLIANCE
   TOWING EQUIPMENT AT A DEPTH OF 300 METERS IN AREA BETWEEN
   43-19N 43-11N AND 009-50E 009-57E.
2. CANCEL THIS MSG 202100Z APR.

Activity windows · 1 in this warning

opens (UTC)closes (UTC)locallength
2000-04-20 05:00Z2000-04-20 20:00Z15 h

Parsed from the warning text; outside these windows the area is normally not active, but the warning stays in force until cancelled.

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.