Exercises

Gunnery exercises 1600Z to 1000Z commencing daily 13 thru 17 jul in area bound by 30-03N 122-24E, 30-03N…

Eastern China Sea · HYDROPAC 2008/11

What this record establishes

Archived notice · 2011-07-18 11:00Z

This notice comes from the historical archive. Its archived status does not establish when or how the reported situation ended.

Source and dates: NGA MSI broadcast-warn JSON (archive, frozen 2024-05) · NAVAREA XI 508/11 130533Z JUL 11.. Issued 2011-07-13 05:54Z. First collected 2026-08-17 13:38Z; last seen in collection 2026-08-17 15:46Z. Collection dates record ingestion, not a new incident or a fresh field observation.
Location covered: Eastern China Sea. The map shows an area described by the warning; the listed coordinate is its representative center. Check the original wording for limits and qualifications.

Current notices and reporting history in the Eastern China Sea →

Activity windows · 5 in this warning

opens (UTC)	closes (UTC)	local	length
2011-07-13 16:00Z	2011-07-14 10:00Z	—	18 h
2011-07-14 16:00Z	2011-07-15 10:00Z	—	18 h
2011-07-15 16:00Z	2011-07-16 10:00Z	—	18 h
2011-07-16 16:00Z	2011-07-17 10:00Z	—	18 h
2011-07-17 16:00Z	2011-07-18 10:00Z	—	18 h

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

issued: 2011-07-13 05:54Z
status: Archived notice
self-cancels: 2011-07-18 11:00Z
authority: NAVAREA XI 508/11 130533Z JUL 11.
NAVAREA: NAVAREA XI · named as the source of this relay
sea: Eastern China Sea
position: 29.096, 122.891
source: NGA MSI broadcast-warn JSON (archive, frozen 2024-05) · first seen 2026-08-17 13:38Z

Original warning text

EAST CHINA SEA.
GUNNERY.
1. GUNNERY EXERCISES 1600Z TO 1000Z COMMENCING DAILY
   13 THRU 17 JUL IN AREA BOUND BY
   30-03N 122-24E, 30-03N 123-32E,
   28-12N 123-32E, 28-12N 122-11E,
   28-52N 122-11E.
2. CANCEL THIS MSG 181100Z JUL.

Reading this warning

Gunnery and live firing: Naval or coastal guns firing into a sea area for practice, at stated times.
Area bound by: Introduces a list of positions that are the corners of an area — the polygon the warning applies to.
Position (degrees and minutes): How warnings write positions: degrees, a hyphen, then minutes, with N/S and E/W — 49-40.8N 003-43.8W.
CANCEL THIS MSG: The warning's own expiry: a line telling the reader when the message cancels itself.
Date-time group (DTG): A compact UTC timestamp — day, hour and minute followed by Z — such as 201500Z for the 20th at 15:00 UTC.

All warning terms →

Collected reports in this area · military exercises

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

Counts include repeat notices about the same situation. NGA archive coverage ends 2024-05; live collection began 2026-08-17. The period between them is incomplete. An empty year is not evidence that no hazards occurred.

Hazardous operations 160100Z to 160700Z apr in area bound by 26-56.40N 122-22.08E, 26-32.94N 121-57.06E,…2023-04-14
Hazardous operations2014-07-28
Hazardous operations2013-07-10
Hazardous operations2013-07-09
Hazardous operations 1600Z to 1000Z commencing daily 09 thru 14 jul, alternate 1600Z to 1000Z commencing…2012-07-06

Month of issue in the collected archive

All available years combined. Uneven collection and repeat bulletins affect these counts; this chart does not measure the seasonality or probability of incidents.

Nearby notices listed in force · within 120 nm

No other collected notice is currently listed in force within this radius. This does not establish safe conditions.

Worldwide in the collected sources

9 military exercises listed in force · see all

Record snapshot 2026-10-02 20:14Z; source collection times vary.

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.