Gunnery exercises 2300Z to 0430Z commencing daily 22 thru 26 apr and 0530Z to 0930Z daily 23 thru 27 apr: a.…
South China Sea · HYDROPAC 1112/12
What this record establishes
Archived notice · 2012-04-28 00:00Z
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 XI 235/12 181145Z APR 12.. Issued 2012-04-18 12:05Z. 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.
Related notices and cancellation links
- Vessel on fire vicinity 17-07N 056-50E at 180915Z aprcancelled by this notice
Current notices and reporting history in the South China Sea →
Activity windows · 10 in this warning
| opens (UTC) | closes (UTC) | local | length |
|---|---|---|---|
| 2012-04-22 23:00Z | 2012-04-23 04:30Z | — | 5 h 30 |
| 2012-04-23 05:30Z | 2012-04-23 09:30Z | — | 4 h |
| 2012-04-23 23:00Z | 2012-04-24 04:30Z | — | 5 h 30 |
| 2012-04-24 05:30Z | 2012-04-24 09:30Z | — | 4 h |
| 2012-04-24 23:00Z | 2012-04-25 04:30Z | — | 5 h 30 |
| 2012-04-25 05:30Z | 2012-04-25 09:30Z | — | 4 h |
| 2012-04-25 23:00Z | 2012-04-26 04:30Z | — | 5 h 30 |
| 2012-04-26 05:30Z | 2012-04-26 09:30Z | — | 4 h |
| … 2 more | |||
Parsed from the warning text; outside these windows the area is normally not active, but the warning stays in force until cancelled.
- issued
- 2012-04-18 12:05Z
- status
- Archived notice
- self-cancels
- 2012-04-27 10:30Z
- authority
- NAVAREA XI 235/12 181145Z APR 12.
- NAVAREA
- NAVAREA XI · named as the source of this relay
- sea
- South China Sea
- position
- 22.568, 119.268
- source
- NGA MSI broadcast-warn JSON (archive, frozen 2024-05) · first seen 2026-08-17 13:38Z
Original warning text
TAIWAN STRAIT.
GUNNERY.
1. GUNNERY EXERCISES 2300Z TO 0430Z COMMENCING
DAILY 22 THRU 26 APR AND 0530Z TO 0930Z
DAILY 23 THRU 27 APR:
A. IN AREA BOUND BY
22-34N 118-55E, 22-59N 119-39E,
22-16N 119-37E, 22-21N 118-55E.
B. WITHIN 29 MILES OF 22-34N 119-16E.
2. CANCEL THIS MSG 271030Z APR.
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.
- Within a radius of
- A circular area — every position within a stated distance of a point.
- 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
736 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 0100Z to 0230Z daily 12 and 13 jan in area bound by 24-24.00N 122-20.00E, 24-24.00N…2023-01-07
- Gunnery exercise 040400Z to 070400Z aug in area bound by 21-14.00N 121-33.00E, 21-33.00N 121-18.00E,…2022-08-02
- Hazardous operations in progress until 31 dec in areas bound by: a. 24-11-56N 119-45-36E, 24-11-34N…2021-03-25
- Gunnery exercises 1130Z to 1220Z daily 01, 08, 15, 22 and 29 may in area bound by 23-15-00N 121-37-00E,…2019-04-26
- Gunnery exercises 2330Z to 0001Z commencing daily 30 apr, 07, 14, 21 and 28 may 0035Z to 0045Z and 0100Z to…2019-04-26
- Gunnery exercises 2330Z to 0001Z commencing daily 15 and 16 apr, 0035Z to 0045Z and 0100Z to 0150Z daily 16…2019-04-16
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 2026-10-02 00:51Z; 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.