Exercises

Hazardous operations 0800Z to 1730Z daily 11 thru 29 jan except saturdays and sundays in area bound by…

HYDROLANT 46/99

issued
1999-01-08 21:15Z
status
cancelled 1999-01-29 00:00Z (archive)
self-cancels
1999-01-29 18:30Z
sea
Tyrrhenian Sea
position
39.577, 10.126
source
nga_json · first seen 2026-08-17 13:38Z

Original warning text

1. HAZARDOUS OPERATIONS 0800Z TO 1730Z DAILY 11 THRU 29 JAN
   EXCEPT SATURDAYS AND SUNDAYS IN AREA BOUND BY 40-00N 010-00E,
   40-00N 010-30E, 39-10N 010-30E, 39-10N 010-00E, 39-26N 009-38E,
   39-38N 009-38E.
2. CANCEL THIS MSG 291830Z JAN.

Activity windows · 19 in this warning

opens (UTC)closes (UTC)locallength
1999-01-11 08:00Z1999-01-11 17:30Z9 h 30
1999-01-12 08:00Z1999-01-12 17:30Z9 h 30
1999-01-13 08:00Z1999-01-13 17:30Z9 h 30
1999-01-14 08:00Z1999-01-14 17:30Z9 h 30
1999-01-15 08:00Z1999-01-15 17:30Z9 h 30
1999-01-16 08:00Z1999-01-16 17:30Z9 h 30
1999-01-17 08:00Z1999-01-17 17:30Z9 h 30
1999-01-18 08:00Z1999-01-18 17:30Z9 h 30
11 more

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

This area · military exercises

346 within 180 nm since 1999 · 0 in the last 12 months · 0 in force now

99
00
05
10
15
20
23

Season · when military exercises 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

35 military exercises in force · see all

Exercises

Gunnery, firing and naval exercise areas. All current military exercises

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.