Hazardous operations 222330Z to 251430Z oct in areas bound by: p. 08-50.53N 112-35.55E, 08-52.65N…
South China Sea · HYDROPAC 3464/19
What this record establishes
Archived notice · 2019-10-25 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 210115Z OCT 19.. Issued 2019-10-21 03:12Z. 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 · 1 in this warning
| opens (UTC) | closes (UTC) | local | length |
|---|---|---|---|
| 2019-10-22 23:30Z | 2019-10-25 14:30Z | — | 63 h |
Parsed from the warning text; outside these windows the area is normally not active, but the warning stays in force until cancelled.
- issued
- 2019-10-21 03:12Z
- status
- Archived notice
- self-cancels
- 2019-10-25 15:30Z
- authority
- HAIPHONG RADIO 210115Z OCT 19.
- issued by
- HAIPHONG RADIO
- sea
- South China Sea
- position
- 8.735, 113.909
- 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. HAZARDOUS OPERATIONS 222330Z TO 251430Z OCT
IN AREAS BOUND BY:
P. 08-50.53N 112-35.55E, 08-52.65N 112-37.06E,
08-51.91N 112-37.91E, 08-50.26N 112-35.76E.
Q. 08-09.40N 113-16.95E, 08-09.30N 113-19.50E,
08-07.83N 113-18.85E, 08-08.95N 113-16.88E.
R. 08-04.71N 113-13.61E, 08-03.91N 113-16.11E,
08-02.83N 113-15.43E, 08-04.33N 113-13.55E.
S. 08-52.18N 112-15.28E, 08-51.78N 112-15.40E,
08-52.03N 112-18.41E, 08-52.98N 112-18.16E.
T. 08-51.60N 112-08.81E, 08-54.31N 112-10.01E,
08-50.78N 112-11.83E, 08-50.60N 112-11.70E.
U. 08-55.56N 112-14.50E, 08-54.56N 112-15.96E,
08-52.43N 112-13.85E, 08-52.55N 112-13.73E.
V. 08-41.18N 114-10.31E, 08-41.78N 114-10.28E,
08-43.21N 114-12.43E, 08-42.28N 114-12.75E.
W. 08-44.81N 114-10.76E, 08-44.88N 114-10.75E,
08-44.56N 114-08.11E, 08-43.58N 114-08.75E.
X. 11-23.33N 114-17.93E, 11-24.06N 114-20.43E,
11-25.71N 114-20.28E, 11-24.18N 114-17.95E.
Y. 10-24.51N 114-35.20E, 10-24.68N 114-35.30E,
10-23.56N 114-37.70E, 10-21.58N 114-35.81E.
Z. 09-49.66N 114-13.33E, 09-50.00N 114-15.33E,
09-46.43N 114-15.41E, 09-46.38N 114-15.20E.
AA. 09-46.68N 114-22.15E, 09-46.86N 114-22.30E,
09-45.85N 114-25.05E, 09-45.10N 114-24.41E.
BB. 08-50.86N 114-38.23E, 08-51.06N 114-38.50E,
08-49.78N 114-40.95E, 08-49.16N 114-40.28E.
CC. 08-41.71N 111-39.33E, 08-42.11N 111-40.16E,
08-40.16N 111-40.43E, 08-40.15N 111-40.33E.
2. PART TWO OF TWO PART MSG. REFER TO
HYDROPAC 3463/19 FOR FIRST GROUP OF AREAS.
3. CANCEL THIS MSG 251530Z OCT 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.
- 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.
- HYDROPAC
- The U.S. long-range warning series for the Pacific outside NAVAREA XII and for the Indian Ocean, Persian Gulf and adjoining seas.
- 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
31 within 180 nm since 2000 · 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: a. 08-38.78N 111-55.03E, 08-38.91N…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
28 military exercises listed in force · see all
Record snapshot 2026-10-01 14:08Z; 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.