Underwater ordnance detonations 052200Z to 061200Z mar, alternate 062200Z to 071200Z mar within ten miles of…
Philippine Sea · HYDROPAC 383/03
What this record establishes
Archived notice · 2003-03-07 13:00Z
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) · CTG 72.2 270200Z FEB 03. Issued 2003-03-03 11:40Z. 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 the reported line or operation extent; it is not a vessel track. Check the original wording for limits and qualifications.
Current notices and reporting history in the Philippine Sea →
Activity windows · 2 in this warning
| opens (UTC) | closes (UTC) | local | length |
|---|---|---|---|
| 2003-03-05 22:00Z | 2003-03-06 12:00Z | — | 14 h |
| 2003-03-06 22:00Z | 2003-03-07 12:00Z | — | 14 h |
Parsed from the warning text; outside these windows the area is normally not active, but the warning stays in force until cancelled.
- issued
- 2003-03-03 11:40Z
- status
- Archived notice
- self-cancels
- 2003-03-07 13:00Z
- authority
- CTG 72.2 270200Z FEB 03
- issued by
- CTG
- sea
- Philippine Sea
- position
- 23.796, 124.672
- source
- NGA MSI broadcast-warn JSON (archive, frozen 2024-05) · first seen 2026-08-17 13:38Z
Original warning text
1. UNDERWATER ORDNANCE DETONATIONS 052200Z TO 061200Z MAR, ALTERNATE 062200Z TO 071200Z MAR WITHIN TEN MILES OF TRACKLINES BETWEEN: A. 24-32N 126-00E AND 25-07N 126-39E. B. 23-04N 122-42E AND 22-28N 123-20E. 2. CANCEL THIS MSG 071300Z MAR.
Reading this warning
- Unexploded ordnance
- Bombs, shells, mines or torpedoes found on the seabed or washed up, and the operations to remove or destroy them.
- 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.
- Within a radius of
- A circular area — every position within a stated distance of a point.
- Track line joining
- Introduces a route through a series of positions — a cable route, a tow's track or a survey line.
- 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 · ordnance operations
5 within 180 nm since 2001 · 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.
- Underwater ordnance detonations 2300Z to 0600Z commencing daily 24 and 25 nov vicinity 22-56.0N 127-14.1E2016-11-25
- Underwater ordnance detonations 0001Z to 1200Z daily: a. 15 sep in area between 28-10N 27-30N and 125-07E…2003-09-13
- Underwater ordnance detonations 252200Z to 261200Z feb, alternate 262200Z to 271200Z feb within ten miles of…2003-02-25
- Underwater ordance detonations 261700Z to 262300Z aug within ten miles of trackline between 21-30.0N…2001-08-21
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 · 96.5 nm
Worldwide in the collected sources
0 ordnance operations listed in force · see all
Record snapshot 2026-10-02 01:56Z; source collection times vary.
Ordnance
Ordnance disposal, underwater detonations and unexploded ordnance. All current ordnance operations →
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.