Hazardous operations 0330Z to 1000Z daily 09 thru 15 dec in areas bound by: a. 23-38.00N 123-22.00E,…
Philippine Sea · HYDROPAC 3468/22
What this record establishes
Archived notice · 2022-12-06 12:01Z
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 442/22 060008Z DEC 22.. Issued 2022-12-06 00:34Z. 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
- Philippine 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
Current notices and reporting history in the Philippine Sea →
Activity windows · 7 in this warning
| opens (UTC) | closes (UTC) | local | length |
|---|---|---|---|
| 2022-12-09 03:30Z | 2022-12-09 10:00Z | — | 6 h 30 |
| 2022-12-10 03:30Z | 2022-12-10 10:00Z | — | 6 h 30 |
| 2022-12-11 03:30Z | 2022-12-11 10:00Z | — | 6 h 30 |
| 2022-12-12 03:30Z | 2022-12-12 10:00Z | — | 6 h 30 |
| 2022-12-13 03:30Z | 2022-12-13 10:00Z | — | 6 h 30 |
| 2022-12-14 03:30Z | 2022-12-14 10:00Z | — | 6 h 30 |
| 2022-12-15 03:30Z | 2022-12-15 10:00Z | — | 6 h 30 |
Parsed from the warning text; outside these windows the area is normally not active, but the warning stays in force until cancelled.
- issued
- 2022-12-06 00:34Z
- status
- Archived notice
- self-cancels
- 2022-12-15 11:00Z
- authority
- NAVAREA XI 442/22 060008Z DEC 22.
- NAVAREA
- NAVAREA XI · named as the source of this relay
- sea
- Philippine Sea
- position
- 22.612, 122.832
- source
- NGA MSI broadcast-warn JSON (archive, frozen 2024-05) · first seen 2026-08-17 13:38Z
Original warning text
PHILIPPINE SEA.
JAPAN.
DNC 23.
1. HAZARDOUS OPERATIONS 0330Z TO 1000Z DAILY
09 THRU 15 DEC IN AREAS BOUND BY:
A. 23-38.00N 123-22.00E, 23-43.00N 122-34.00E,
22-16.00N 122-24.00E, 22-11.00N 123-11.00E.
B. 22-57.00N 123-16.00E, 23-02.00N 122-29.00E,
21-35.00N 122-18.00E, 21-30.00N 123-05.00E.
2. CANCEL THIS MSG 151100Z DEC 22.
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.
- 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 · military exercises
599 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 exercises in progress until 070400Z aug in area bound by 25-03.00N 122-11.00E, 25-34.00N 122-11.00E,…2022-08-05
- Hazardous operations in progress until 080200Z aug in area bound by 23-13.00N 122-30.00E, 23-40.00N…2022-08-04
- 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
- Gunnery exercise 040400Z to 070400Z aug in area bound by 23-38.00N 123-23.00E, 23-38.00N 122-51.00E,…2022-08-02
- Gunnery exercises 1900Z to 0300Z daily 28, 29 jun, 05 thru 07, 11 thru 14, 19, 20 and 25 jul, and 0100Z to…2022-06-24
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
- 74 km s of yonakuni, japanQuakes · 71.6 nm
Worldwide in the collected sources
28 military exercises listed in force · see all
Record snapshot 2026-10-01 23:32Z; 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.