Exercises

Hazardous operations 1600Z to 1000Z commencing daily 09 thru 14 jul, alternate 1600Z to 1000Z commencing…

East China Sea · Hazardous Operation · HYDROPAC 1921/12

issued
2012-07-06 13:44Z
status
cancelled 2012-07-20 11:00Z (archive)
self-cancels
2012-07-20 11:00Z
authority
NAVAREA XI 446/12 061125Z JUL 12.
sea
Eastern China Sea
position
29.356, 122.983
source
nga_json · first seen 2026-08-17 13:38Z

Original warning text

EAST CHINA SEA.
HAZARDOUS OPERATION.
1. HAZARDOUS OPERATIONS 1600Z TO 1000Z COMMENCING
   DAILY 09 THRU 14 JUL, ALTERNATE 1600Z TO 1000Z
   COMMENCING DAILY 15 THRU 19 JUL
   IN AREA BOUND BY
   30-05N 122-25E, 30-05N 123-40E,
   28-40N 123-40E, 28-40N 122-13E,
   28-52N 122-13E.
2. CANCEL THIS MSG 201100Z JUL.

Activity windows · 11 in this warning

opens (UTC)closes (UTC)locallength
2012-07-09 16:00Z2012-07-10 10:00Z—18 h
2012-07-10 16:00Z2012-07-11 10:00Z—18 h
2012-07-11 16:00Z2012-07-12 10:00Z—18 h
2012-07-12 16:00Z2012-07-13 10:00Z—18 h
2012-07-13 16:00Z2012-07-14 10:00Z—18 h
2012-07-14 16:00Z2012-07-15 10:00Z—18 h
2012-07-15 16:00Z2012-07-16 10:00Z—18 h
2012-07-16 16:00Z2012-07-17 10:00Z—18 h
… 3 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

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

11
14

Season · when military exercises happen here

J
F
M
A
M
J
J
A
S
O
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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.