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Underwater survey 182259Z to 212300Z dec by M/V argonaut with equipment along trackline between 41-17.9N…

HYDROLANT 4128/00

issued: 2000-12-15 15:35Z
status: cancelled 2000-12-21 23:59Z (archive)
self-cancels: 2000-12-21 23:59Z
authority: MARDIPART LA SPEZIA 404/00 151152Z DEC 00
sea: Tyrrhenian Sea
position: 41.454, 12.329
source: nga_json · first seen 2026-08-17 13:38Z

Original warning text

1. UNDERWATER SURVEY 182259Z TO 212300Z DEC BY M/V ARGONAUT
   WITH EQUIPMENT ALONG TRACKLINE BETWEEN 41-17.9N 012-17.1E
   AND 41-36.6N 012-22.4E. WIDE BERTH REQUESTED.
2. CANCEL THIS MSG 212359Z DEC.

Activity windows · 1 in this warning

opens (UTC)	closes (UTC)	local	length
2000-12-18 22:59Z	2000-12-21 23:00Z	—	72 h 01

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

This area · other warnings

89 within 180 nm since 1998 · 0 in the last 12 months · 0 in force now

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Season · when other warnings happen here

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Nearby now · within 120 nm

Nothing else in force within 120 nm.

Worldwide now

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Other

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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.