Exercises

Gunnery exercises 30 aug in area bound by 05-43.0N 121-20.0E, 05-38.0N 121-20.1E, 05-38.0N 121-25.0E,…

Celebes Sea · HYDROPAC 2947/17

What this record establishes

Archived notice · 2017-08-31 00:01Z

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 548/17 291546Z AUG 17.. Issued 2017-08-29 16:25Z. 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
Celebes 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 Celebes Sea →

issued
2017-08-29 16:25Z
status
Archived notice
authority
NAVAREA XI 548/17 291546Z AUG 17.
NAVAREA
NAVAREA XI · named as the source of this relay
sea
Celebes Sea
position
5.675, 121.375
source
NGA MSI broadcast-warn JSON (archive, frozen 2024-05) · first seen 2026-08-17 13:38Z

Original warning text

CELEBES SEA.
PHILIPPINES.
DNC 11.
1. GUNNERY EXERCISES 30 AUG IN AREA BOUND BY
   05-43.0N 121-20.0E, 05-38.0N 121-20.1E,
   05-38.0N 121-25.0E, 05-43.0N 121-25.0E.
2. CANCEL THIS MSG 31 AUG 17.

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.
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.
CANCEL THIS MSG
The warning's own expiry: a line telling the reader when the message cancels itself.

All warning terms →

Collected reports in this area · military exercises

34 within 180 nm since 2003 · 1 in the last 12 months · 0 listed in force now

03
05
10
15
20
25

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

No other collected notice is currently listed in force within this radius. This does not establish safe conditions.

Worldwide in the collected sources

9 military exercises listed in force · see all

Record snapshot 2026-10-02 17:47Z; 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.