Other

Underwater ordnance detonations 210700Z to 211600Z mar, alternate 220700Z to 221600Z and 230700Z to 231600Z…

HYDROLANT 999/00

issued
2000-03-20 20:15Z
status
cancelled 2000-03-23 17:00Z (archive)
self-cancels
2000-03-23 17:00Z
authority
MARISARDEGNA 036/00 200100A MAR 00
sea
Tyrrhenian Sea
position
41.308, 9.508
source
nga_json · first seen 2026-08-17 13:38Z

Original warning text

1. UNDERWATER ORDNANCE DETONATIONS 210700Z TO 211600Z MAR,
   ALTERNATE 220700Z TO 221600Z AND 230700Z TO 231600Z MAR
   IN 41-18-30N 009-30-30E. 4000 METER BERTH REQUESTED.
2. CANCEL THIS MSG 231700Z MAR.

Activity windows · 3 in this warning

opens (UTC)closes (UTC)locallength
2000-03-21 07:00Z2000-03-21 16:00Z9 h
2000-03-22 07:00Z2000-03-22 16:00Z9 h
2000-03-23 07:00Z2000-03-23 16:00Z9 h

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

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

98
00
05
10
15
20
23

Season · when other warnings happen here

J
F
M
A
M
J
J
A
S
O
N
D

month of issue, all years in the archive

Nearby now · within 120 nm

Nothing else in force within 120 nm.

Worldwide now

34 other warnings in force · see all

Other

Everything the classifier did not place elsewhere. All current other warnings

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.