Exercises

Gunnery exercises 2200Z to 1400Z commencing daily 02 thru 06, 09 thru 13, 16 thru 20, 26, and 27 sep in area…

Japan Sea · HYDROPAC 1507/07

What this record establishes

Archived notice · 2007-09-28 15:00Z

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 378/07 29 AUG 07.. Issued 2007-08-29 09:42Z. 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
Japan 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 Japan Sea →

Activity windows · 5 in this warning

opens (UTC)closes (UTC)locallength
2007-09-02 22:00Z2007-09-03 14:00Z—16 h
2007-09-03 22:00Z2007-09-04 14:00Z—16 h
2007-09-04 22:00Z2007-09-05 14:00Z—16 h
2007-09-05 22:00Z2007-09-06 14:00Z—16 h
2007-09-06 22:00Z2007-09-07 14:00Z—16 h

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

issued
2007-08-29 09:42Z
status
Archived notice
self-cancels
2007-09-28 15:00Z
authority
NAVAREA XI 378/07 29 AUG 07.
NAVAREA
NAVAREA XI · named as the source of this relay
sea
Japan Sea
position
37.904, 130.011
source
NGA MSI broadcast-warn JSON (archive, frozen 2024-05) · first seen 2026-08-17 13:38Z

Original warning text

1. GUNNERY EXERCISES 2200Z TO 1400Z COMMENCING
   DAILY 02 THRU 06, 09 THRU 13, 16 THRU 20, 26,
   AND 27 SEP IN AREA BOUND BY
   38-08N 129-51E, 38-08N 130-10E,
   37-39N 130-10E, 37-42N 129-51E.
2. CANCEL THIS MSG 281500Z SEP.

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

330 within 180 nm since 1999 · 0 in the last 12 months · 0 listed in force now

99
00
05
10
11

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.

Month of issue in the collected archive

J
F
M
A
M
J
J
A
S
O
N
D

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

28 military exercises listed in force · see all

Record snapshot 2026-10-02 01:24Z; 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.