Exercises

Gunnery exercises 2200Z to 0800Z daily 31 aug thru 06 sep in areas bound by: a. 43-50.00N 138-22.00E,…

Japan Sea · HYDROPAC 2346/22

What this record establishes

Archived notice · 2022-09-07 09:00Z

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 XIII 84/22 250931Z AUG 22.. Issued 2022-08-26 09:46Z. 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 · 7 in this warning

opens (UTC)closes (UTC)locallength
2022-08-31 22:00Z2022-09-01 08:00Z—10 h
2022-09-01 22:00Z2022-09-02 08:00Z—10 h
2022-09-02 22:00Z2022-09-03 08:00Z—10 h
2022-09-03 22:00Z2022-09-04 08:00Z—10 h
2022-09-04 22:00Z2022-09-05 08:00Z—10 h
2022-09-05 22:00Z2022-09-06 08:00Z—10 h
2022-09-06 22:00Z2022-09-07 08:00Z—10 h

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

issued
2022-08-26 09:46Z
status
Archived notice
self-cancels
2022-09-07 09:00Z
authority
NAVAREA XIII 84/22 250931Z AUG 22.
NAVAREA
NAVAREA XIII · named as the source of this relay
sea
Japan Sea
position
43.101, 137.520
source
NGA MSI broadcast-warn JSON (archive, frozen 2024-05) · first seen 2026-08-17 13:38Z

Original warning text

SEA OF JAPAN.
RUSSIA.
DNC 24.
1. GUNNERY EXERCISES 2200Z TO 0800Z DAILY
   31 AUG THRU 06 SEP IN AREAS BOUND BY:
   A. 43-50.00N 138-22.00E, 43-50.00N 137-50.00E,
      43-30.00N 137-50.00E, 43-30.00N 138-22.00E.
   B. 43-30.00N 137-55.00E, 43-30.00N 136-55.00E,
      42-30.00N 136-55.00E, 42-30.00N 137-55.00E.
2. CANCEL THIS MSG 070900Z SEP 22.

Reading this warning

DNC (Digital Nautical Chart)
A reference to one of the regions of NGA's Digital Nautical Chart, used to tell the reader which charts a warning affects.
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

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

99
00
05
10
15
20
22

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

9 military exercises listed in force · see all

Record snapshot 2026-10-02 19:18Z; 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.