Exercises

Hazardous operations 302300Z to 302359Z mar and 2300Z to 0200Z commencing daily 31 mar and 01 apr in area…

HYDROPAC 232/99

issued
1999-03-26 10:30Z
status
cancelled 1999-04-02 00:00Z (archive)
self-cancels
1999-04-02 03:00Z
sea
Japan Sea
position
42.271, 132.953
source
nga_json · first seen 2026-08-17 13:38Z

Original warning text

1. HAZARDOUS OPERATIONS 302300Z TO 302359Z MAR AND
   2300Z TO 0200Z COMMENCING DAILY 31 MAR AND 01 APR
   IN AREA BOUND BY 42-00N 131-27E, 42-37N 131-23E,
   42-40N 133-20E, 42-55N 134-20E, 41-57N 134-20E,
   41-43N 132-40E.
2. CANCEL THIS MSG 020300Z APR.

Activity windows · 1 in this warning

opens (UTC)closes (UTC)locallength
1999-03-30 23:00Z1999-03-30 23:59Z59 min

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

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.