Gunnery exercises 042100Z to 102100Z apr in area bound by 47-45.8N 153-08.6E, 48-02.3N 152-45.8E, 48-17.8N…
Sea of Okhotsk · HYDROPAC 1065/20
What this record establishes
Archived notice · 2020-04-10 22:00Z
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 31/20 020916Z APR 20.. Issued 2020-04-02 09:29Z. 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
- Sea of Okhotsk. 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 Sea of Okhotsk →
Activity windows · 1 in this warning
| opens (UTC) | closes (UTC) | local | length |
|---|---|---|---|
| 2020-04-04 21:00Z | 2020-04-10 21:00Z | — | 144 h |
Parsed from the warning text; outside these windows the area is normally not active, but the warning stays in force until cancelled.
- issued
- 2020-04-02 09:29Z
- status
- Archived notice
- self-cancels
- 2020-04-10 22:00Z
- authority
- NAVAREA XIII 31/20 020916Z APR 20.
- NAVAREA
- NAVAREA XIII · named as the source of this relay
- sea
- Sea of Okhotsk
- position
- 48.030, 153.175
- source
- NGA MSI broadcast-warn JSON (archive, frozen 2024-05) · first seen 2026-08-17 13:38Z
Original warning text
WESTERN NORTH PACIFIC. SEA OF OKHOTSK. KURIL ISLANDS. DNC 24. 1. GUNNERY EXERCISES 042100Z TO 102100Z APR IN AREA BOUND BY 47-45.8N 153-08.6E, 48-02.3N 152-45.8E, 48-17.8N 153-13.3E, 48-01.3N 153-34.7E. 2. CANCEL THIS MSG 102200Z APR 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.
- Gunnery and live firing
- Naval or coastal guns firing into a sea area for practice, at stated times.
- 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.
- 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.
Collected reports in this area · military exercises
18 within 180 nm since 2011 · 2 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 in progress until 031200Z sep in areas bound by: a. 50-05.00N 155-07.00E, 49-55.00N…2026-08-31
- Hazardous operations in progress until 030500Z sep in areas bound by: a. 51-03.30N 156-22.20E, 50-43.10N…2026-08-31
- Hazardous operations 250700Z sep to 080700Z oct in area bound by 46-20.00N 151-05.00E, 46-49.10N 151-00.50E,…2024-09-24
- Gunnery exercises 251400Z apr to 151200Z may in areas bound by: a. 49-55.00N 155-33.00E, 50-05.00N…2024-04-25
- Gunnery exercises in progress until 151200Z may in area bound by 46-55.40N 151-26.00E, 46-34.40N 151-43.70E,…2024-04-23
- Gunnery exercises 171100Z to 221300Z apr in area bound by 46-55.40N 151-26.00E, 46-49.10N 151-00.50E,…2024-04-17
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
28 military exercises listed in force · see all
Record snapshot 2026-10-01 21:39Z; 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.