Gunnery exercise in Japan Sea occurs daily 2200Z to 1000Z on specified dates from 31 July to 30 August in a bounded area.
Japan Sea · NAVAREA XI 341/26
What this record establishes
Cancelled notice · 2026-08-31 16:21Z
This notice disappeared from the issuing source's in-force list. No explicit recovery or all-clear is established by that removal.
- Source and dates
- Japan Coast Guard JHOD NAVAREA XI · Japan Coast Guard (JHOD). Issued 2026-07-27 12:00Z. First collected 2026-08-17 13:42Z; last seen in collection 2026-08-17 14:24Z. 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.
- issued
- 2026-07-27 12:00Z
- status
- Cancelled notice
- self-cancels
- 2026-08-31 11:00Z
- authority
- Japan Coast Guard (JHOD)
- NAVAREA
- NAVAREA XI
- issued by
- JAPAN COAST GUARD
- sea
- Japan Sea
- position
- 42.455, 131.964
- nearest port
- Vladivostok · 39 nm
- source
- Japan Coast Guard JHOD NAVAREA XI · first seen 2026-08-17 13:42Z
Original warning text
JAPAN SEA. GUNNERY. 2200Z TO 1000Z COMMENCING DAILY 31 JUL, 02 TO 14, 16 TO 21, 23 TO 28 AND 30 AUG. AREA BOUNDED BY 42-40.0N 131-41.0E 42-40.0N 131-57.0E 42-38.5N 132-15.0E 42-15.0N 132-15.0E 42-15.0N 131-41.0E. CANCEL THIS MSG 311100Z AUG.
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.
Collected reports in this area · military exercises
238 within 180 nm since 1999 · 3 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.
- Gunnery exercises 2200Z to 1000Z daily, 31 jul, 02 thru 14, 16 thru 21, 23 thru 28 and 30 aug, in area bound…2026-07-27
- Gunnery exercises 2200Z to 0800Z daily 11 thru 16, 18 thru 23 and 25 thru 30 jan in area bound by 42-40.00N…2026-01-07
- Gunnery exercises 2200Z to 1000Z daily 11 thru 13, 15 thru 20, 22 thru 29 jun in area bound by 42-40.00N…2025-06-12
- Gunnery exercises 2200Z to 0800Z daily 31 jan thru 27 feb except saturdays in area bound by 42-40.00N…2025-01-29
- Gunnery exercises 2200Z to 0800Z daily 01, 02, 05 thru 07, 12 thru 17, 19 thru 24 and 26 thru 30 may in area…2024-04-27
- Gunnery exercises 2200Z to 0800Z daily 31 mar thru 05 apr, 07 thru 12, 14 thru 19, 21 thru 26, 28 and 29 apr…2024-03-27
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
31 military exercises listed in force · see all
Record snapshot 2026-09-29 23:58Z; 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.