Exercises

Hazardous operations 15 thru 30 apr in area bound by 10-13.34N 123-49.94E, 10-12.32N 123-49.90E, 10-12.35N…

Philippine Sea · HYDROPAC 1195/24

What this record establishes

Archived notice · 2024-04-12 16:34Z

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 182/24 121201Z APR 24.. Issued 2024-04-12 13:37Z. 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.

Current notices and reporting history in the Philippine Sea →

issued
2024-04-12 13:37Z
status
Archived notice
self-cancels
2024-05-01 00:01Z
authority
NAVAREA XI 182/24 121201Z APR 24.
NAVAREA
NAVAREA XI · named as the source of this relay
sea
Philippine Sea
position
10.214, 123.823
source
NGA MSI broadcast-warn JSON (archive, frozen 2024-05) · first seen 2026-08-17 13:38Z

Original warning text

PHILIPPINES.
DNC 11.
1. HAZARDOUS OPERATIONS 15 THRU 30 APR
   IN AREA BOUND BY
   10-13.34N 123-49.94E, 10-12.32N 123-49.90E,
   10-12.35N 123-48.86E, 10-13.38N 123-48.89E.
2. CANCEL THIS MSG 010001Z MAY 24.

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.

All warning terms →

Collected reports in this area · military exercises

22 within 180 nm since 2004 · 0 in the last 12 months · 0 listed in force now

04
05
10
15
20
24

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.

Month of issue in the collected archive

J
F
M
A
M
J
J
A
S
O
N
D

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

Worldwide in the collected sources

30 military exercises listed in force · see all

Record snapshot 2026-09-30 20:47Z; 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.