Exercises

Hazardous operations 0400Z to 1000Z daily 14 and 15 jul in area bound by 41-43.0N 131-31.0E, 42-03.0N…

Japan Sea · HYDROPAC 1091/05

What this record establishes

Archived notice · 2005-07-15 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 XIII 17/05 09 JUL 05; AUSSAR 090924Z JUL 05.//. Issued 2005-07-09 09:56Z. 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.

Related notices and cancellation links

Current notices and reporting history in the Japan Sea →

issued
2005-07-09 09:56Z
status
Archived notice
self-cancels
2005-07-15 11:00Z
authority
NAVAREA XIII 17/05 09 JUL 05; AUSSAR 090924Z JUL 05.//
NAVAREA
NAVAREA XIII · named as the source of this relay
sea
Japan Sea
position
42.181, 132.277
source
NGA MSI broadcast-warn JSON (archive, frozen 2024-05) · first seen 2026-08-17 13:38Z

Original warning text

1. HAZARDOUS OPERATIONS 0400Z TO 1000Z DAILY
   14 AND 15 JUL IN AREA BOUND BY
   41-43.0N 131-31.0E, 42-03.0N 131-07.0E,
   42-28.5N 131-27.0E, 42-43.0N 132-34.0E,
   42-29.0N 133-11.5E, 41-52.5N 133-24.0E.
2. CANCEL HYDROPAC 1089/05(75).
3. CANCEL THIS MSG 151100Z JUL.

Reading this warning

Hazardous operations
NGA's heading for activities that make an area dangerous — most often rocket launches, space debris and weapons firings, and some open-ended danger areas.
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.
Cancellation reference
A line that cancels an earlier warning by its number, such as CANCEL HYDROLANT 1085/12.
HYDROPAC
The U.S. long-range warning series for the Pacific outside NAVAREA XII and for the Indian Ocean, Persian Gulf and adjoining seas.
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

239 within 180 nm since 1999 · 3 in the last 12 months · 0 listed in force now

99
00
05
10
15
20
25
26

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 2026-10-03 17:18Z; 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.