Hazardous operations 2200Z to 1000Z commencing daily 12 thru 24 may in area bound by 43-53.0N 135-50.5E,…
Japan Sea · HYDROPAC 1543/19
What this record establishes
Archived notice · 2019-05-25 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 44/19 070908Z MAY 19.. Issued 2019-05-07 09:31Z. 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.
Activity windows · 13 in this warning
| opens (UTC) | closes (UTC) | local | length |
|---|---|---|---|
| 2019-05-12 22:00Z | 2019-05-13 10:00Z | — | 12 h |
| 2019-05-13 22:00Z | 2019-05-14 10:00Z | — | 12 h |
| 2019-05-14 22:00Z | 2019-05-15 10:00Z | — | 12 h |
| 2019-05-15 22:00Z | 2019-05-16 10:00Z | — | 12 h |
| 2019-05-16 22:00Z | 2019-05-17 10:00Z | — | 12 h |
| 2019-05-17 22:00Z | 2019-05-18 10:00Z | — | 12 h |
| 2019-05-18 22:00Z | 2019-05-19 10:00Z | — | 12 h |
| 2019-05-19 22:00Z | 2019-05-20 10:00Z | — | 12 h |
| … 5 more | |||
Parsed from the warning text; outside these windows the area is normally not active, but the warning stays in force until cancelled.
- issued
- 2019-05-07 09:31Z
- status
- Archived notice
- self-cancels
- 2019-05-25 11:00Z
- authority
- NAVAREA XIII 44/19 070908Z MAY 19.
- NAVAREA
- NAVAREA XIII · named as the source of this relay
- sea
- Japan Sea
- position
- 44.107, 136.174
- 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. HAZARDOUS OPERATIONS 2200Z TO 1000Z COMMENCING DAILY 12 THRU 24 MAY IN AREA BOUND BY 43-53.0N 135-50.5E, 44-20.0N 136-06.0E, 44-20.0N 136-30.0E, 43-53.0N 136-15.5E. 2. CANCEL THIS MSG 251100Z MAY 19.
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.
- 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.
- 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
53 within 180 nm since 1999 · 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.
- Gunnery exercises 2200Z to 0800Z daily 07 thru 14 sep in areas bound by: a. 43-50.00N 138-22.00E, 43-50.00N…2022-09-07
- Gunnery exercises 2200Z to 0800Z daily 31 aug thru 06 sep in areas bound by: a. 43-50.00N 138-22.00E,…2022-08-26
- Hazardous operations 2300Z to 1500Z daily 12 thru 15, 17 thru 22 and 24 thru 29 jan in area bound by…2021-01-13
- Gunnery exercises 222300Z to 230800Z dec in area bound by 42-38.5N 132-35.0E, 42-37.5N 132-49.0E, 42-31.0N…2020-12-20
- Hazardous operations 022100Z to 102100Z jun in area bound by 42-49.0N 134-14.0E, 42-57.0N 134-14.0E,…2020-05-28
- Hazardous operations 262100Z to 302100Z apr in area bound by 42-49.0N 134-14.0E, 42-57.0N 134-14.0E,…2020-04-23
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 2026-10-03 02:39Z; 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.