Exercises

Hazardous operations

East China Sea · HYDROPAC 2001/13

issued
2013-07-09 09:28Z
status
cancelled 2013-07-10 11:00Z (archive)
self-cancels
2013-07-10 11:00Z
authority
NAVAREA XI 498/13 090857Z JUL 13.
sea
Eastern China Sea
position
28.186, 122.415
source
nga_json · first seen 2026-08-17 13:38Z

Original warning text

EAST CHINA SEA.
HAZARDOUS OPERATIONS.
1. HAZARDOUS OPERATIONS 091600Z TO 101000Z JUL
   IN AREA BOUND BY
   29-10N 122-03E, 29-10N 123-15E,
   27-25N 123-15E, 27-25N 121-10E,
   27-51N 121-10E, 28-09N 121-40E,
   28-24N 121-55E.
2. CANCEL THIS MSG 101100Z JUL 13.

Activity windows · 1 in this warning

opens (UTC)closes (UTC)locallength
2013-07-09 16:00Z2013-07-10 10:00Z18 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

7 within 180 nm since 2011 · 0 in the last 12 months · 0 in force now

11
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.