Exercises

Hazardous operations 2300Z to 0200Z commencing daily 22 thru 25 oct and 0400Z to 0800Z daily 23 thru 26 oct…

HYDROPAC 1947/02

issued
2002-10-17 10:40Z
status
cancelled 2002-10-18 09:50Z (archive)
self-cancels
2002-10-26 09:00Z
authority
NAVAREA XIII 30/02 170922Z OCT 02
sea
Japan Sea
position
42.189, 132.234
source
nga_json · first seen 2026-08-17 13:38Z

Original warning text

1. HAZARDOUS OPERATIONS 2300Z TO 0200Z COMMENCING DAILY 22 THRU 25 OCT
   AND 0400Z TO 0800Z DAILY 23 THRU 26 OCT IN AREA BOUND BY
   41-40N 131-41E, 42-40N 131-41E, 42-51N 132-04E,
   42-38N 132-23E, 42-38N 132-49E, 41-40N 132-49E.
2. CANCEL THIS MSG 260900Z OCT.

Activity windows · 8 in this warning

opens (UTC)closes (UTC)locallength
2002-10-22 23:00Z2002-10-23 02:00Z3 h
2002-10-23 04:00Z2002-10-23 08:00Z4 h
2002-10-23 23:00Z2002-10-24 02:00Z3 h
2002-10-24 04:00Z2002-10-24 08:00Z4 h
2002-10-24 23:00Z2002-10-25 02:00Z3 h
2002-10-25 04:00Z2002-10-25 08:00Z4 h
2002-10-25 23:00Z2002-10-26 02:00Z3 h
2002-10-26 04:00Z2002-10-26 08:00Z4 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 · military exercises

236 within 180 nm since 1999 · 2 in the last 12 months · 2 in force now

99
00
05
10
15
20
25
26

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

Timeline

Nearby now · 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.