Missile operations 2100Z to 0900Z commencing daily 13 thru 18 dec in area bound by 44-41.5N 136-45.0E,…
Japan Sea · HYDROPAC 3640/20
What this record establishes
Archived notice · 2020-12-19 10:00Z
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 125/20 090907Z DEC 20.. Issued 2020-12-09 09:24Z. 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 · 6 in this warning
| opens (UTC) | closes (UTC) | local | length |
|---|---|---|---|
| 2020-12-13 21:00Z | 2020-12-14 09:00Z | — | 12 h |
| 2020-12-14 21:00Z | 2020-12-15 09:00Z | — | 12 h |
| 2020-12-15 21:00Z | 2020-12-16 09:00Z | — | 12 h |
| 2020-12-16 21:00Z | 2020-12-17 09:00Z | — | 12 h |
| 2020-12-17 21:00Z | 2020-12-18 09:00Z | — | 12 h |
| 2020-12-18 21:00Z | 2020-12-19 09:00Z | — | 12 h |
Parsed from the warning text; outside these windows the area is normally not active, but the warning stays in force until cancelled.
- issued
- 2020-12-09 09:24Z
- status
- Archived notice
- self-cancels
- 2020-12-19 10:00Z
- authority
- NAVAREA XIII 125/20 090907Z DEC 20.
- NAVAREA
- NAVAREA XIII · named as the source of this relay
- sea
- Japan Sea
- position
- 43.998, 136.443
- 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. MISSILE OPERATIONS 2100Z TO 0900Z COMMENCING DAILY 13 THRU 18 DEC IN AREA BOUND BY 44-41.5N 136-45.0E, 44-13.5N 137-24.5E, 43-18.5N 135-50.5E, 43-34.0N 135-29.5E. 2. CANCEL THIS MSG 191000Z DEC 20.
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.
- Missile firing
- Missile tests or exercises, with the danger area and times during which missiles may be in flight or falling.
- 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 · missile & rocket hazards
22 within 180 nm since 2010 · 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.
- Missile operations 1400Z to 0800Z daily 25 to 30 jun in area bound by 42-45.50N 135-09.50E, 42-49.30N…2023-06-22
- Missile operations 1400Z to 0800Z daily 25 thru 30 jun in area bound by 42-45.50N 135-09.50E, 42-49.30N…2023-06-22
- Missile operations 1400Z to 0800Z daily 21 thru 24 jun in area bound by 42-45.50N 135-09.50E, 42-49.30N…2023-06-17
- Missile operations 0001Z to 0800Z daily 09 and 10 jul in area bound by 42-00N 133-10E, 42-20N 133-10E,…2021-07-05
- Missile operations in progress until 272100Z apr in area bound by 41-18N 131-13E, 42-31N 131-13E, 42-31N…2018-04-24
- Missile operations in progress until 272100Z apr in area bound by 41-18N 131-13E, 42-31N 131-13E, 42-31N…2018-04-24
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
8 missile & rocket hazards listed in force · see all
Record snapshot 2026-10-02 23:15Z; source collection times vary.
Missiles
Missile firings, rocket launches and space debris re-entry areas. All current missile & rocket hazards →
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.