Gunnery exercises 222330Z to 251430Z oct, alternate 252330Z to 261430Z oct in areas bound by: a. 10-24.52N…
South China Sea · HYDROPAC 3833/18
What this record establishes
Archived notice · 2018-10-26 15:30Z
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) · HAIPHONG RADIO 211254Z OCT 18.. Issued 2018-10-21 19:00Z. 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
- South China 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.
Current notices and reporting history in the South China Sea →
Activity windows · 2 in this warning
| opens (UTC) | closes (UTC) | local | length |
|---|---|---|---|
| 2018-10-22 23:30Z | 2018-10-25 14:30Z | — | 63 h |
| 2018-10-25 23:30Z | 2018-10-26 14:30Z | — | 15 h |
Parsed from the warning text; outside these windows the area is normally not active, but the warning stays in force until cancelled.
- issued
- 2018-10-21 19:00Z
- status
- Archived notice
- self-cancels
- 2018-10-26 15:30Z
- authority
- HAIPHONG RADIO 211254Z OCT 18.
- issued by
- HAIPHONG RADIO
- sea
- South China Sea
- position
- 10.886, 114.602
- source
- NGA MSI broadcast-warn JSON (archive, frozen 2024-05) · first seen 2026-08-17 13:38Z
Original warning text
SOUTH CHINA SEA.
DNC 11.
1. GUNNERY EXERCISES 222330Z TO 251430Z OCT,
ALTERNATE 252330Z TO 261430Z OCT
IN AREAS BOUND BY:
A. 10-24.52N 114-35.20E, 10-24.68N 114-35.30E,
10-23.57N 114-37.70E, 11-21.58N 114-35.82E.
B. 09-49.67N 114-13.33E, 09-50.00N 114-15.33E,
09-46.43N 114-15.42E, 09-46.38N 114-15.20E.
C. 09-46.68N 114-22.15E, 09-46.87N 114-22.30E,
09-45.85N 114-25.05E, 09-45.10N 114-24.42E.
D. 08-50.87N 114-38.23E, 08-51.07N 114-38.50E,
08-49.78N 114-40.95E, 08-49.17N 114-40.28E.
E. 08-41.72N 111-39.33E, 08-42.12N 111-40.17E,
08-40.17N 111-40.43E, 08-40.15N 111-40.33E.
2. CANCEL THIS MSG 261530Z OCT 18.
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
24 within 180 nm since 2003 · 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 290000Z to 291300Z aug, alternate 050000Z to 051300Z sep in area bound by 10-25.16N…2026-08-24
- 290000Z to 291300Z aug, alternate 050000Z to 051300Z sep2026-08-24
- Gunnery exercises 010001Z to 011300Z apr in area bound by 10-16.48N 114-16.17E, 10-27.85N 114-16.17E,…2024-03-27
- Gunnery exercises 0000Z to 1300Z daily 25 mar thru 01 apr in area bound by 10-24.78N 114-17.87E, 10-25.28N…2024-03-20
- Hazardous operations 222330Z to 251430Z oct in areas bound by: p. 08-50.53N 112-35.55E, 08-52.65N…2019-10-21
- Hazardous operations: a. 190030Z to 190130Z oct, alternate 190730Z to 190830Z oct in area bound by 09-02.58N…2019-10-17
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
9 military exercises listed in force · see all
Record snapshot 2026-10-03 03:06Z; 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.