Exercises

Gunnery exercises 010001Z to 012359Z oct in area bound by 06-24.8N 122-25.1E, 06-32.8N 122-25.0E, 06-33.0N…

Celebes Sea · HYDROPAC 3358/17

What this record establishes

Archived notice · 2017-10-02 00:59Z

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 640/17 301315Z SEP 17.. Issued 2017-09-30 13:49Z. 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 →

Activity windows · 1 in this warning

opens (UTC)closes (UTC)locallength
2017-10-01 00:01Z2017-10-01 23:59Z—23 h 58

Parsed from the warning text; outside these windows the area is normally not active, but the warning stays in force until cancelled.

issued
2017-09-30 13:49Z
status
Archived notice
self-cancels
2017-10-02 00:59Z
authority
NAVAREA XI 640/17 301315Z SEP 17.
NAVAREA
NAVAREA XI · named as the source of this relay
sea
Celebes Sea
position
6.481, 122.484
source
NGA MSI broadcast-warn JSON (archive, frozen 2024-05) · first seen 2026-08-17 13:38Z

Original warning text

CELEBS SEA.
PHILIPPINES.
DNC 11.
1. GUNNERY EXERCISES 010001Z TO 012359Z OCT
   IN AREA BOUND BY
   06-24.8N 122-25.1E, 06-32.8N 122-25.0E,
   06-33.0N 122-33.0E, 06-24.8N 122-33.1E.
2. CANCEL THIS MSG 020059Z OCT 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.
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.
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

43 within 180 nm since 2003 · 0 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

28 military exercises listed in force · see all

Record snapshot 2026-10-01 11:38Z; 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.