Exercises

Gunnery exercises 2330Z to 0001Z commencing daily 15 and 16 apr, 0035Z to 0045Z and 0100Z to 0150Z daily 16…

Philippine Sea · HYDROPAC 1289/19

What this record establishes

Archived notice · 2019-04-17 02:50Z

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 220/19 160307Z APR 19.. Issued 2019-04-16 07:31Z. 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 →

issued
2019-04-16 07:31Z
status
Archived notice
self-cancels
2019-04-17 02:50Z
authority
NAVAREA XI 220/19 160307Z APR 19.
NAVAREA
NAVAREA XI · named as the source of this relay
sea
Philippine Sea
position
23.911, 121.968
source
NGA MSI broadcast-warn JSON (archive, frozen 2024-05) · first seen 2026-08-17 13:38Z

Original warning text

PHILIPPINE SEA.
TAIWAN.
DNC 23.
1. GUNNERY EXERCISES 2330Z TO 0001Z COMMENCING
   DAILY 15 AND 16 APR, 0035Z TO 0045Z AND
   0100Z TO 0150Z DAILY 16 AND 17 APR
   IN AREA BOUND BY
   24-13.30N 122-33.13E, 24-09.46N 121-34.11E,
   23-54.30N 121-33.38E, 23-20.31N 121-45.34E,
   23-27.02N 121-56.32E, 23-37.41N 121-53.28E,
   24-03.27N 122-33.59E.
2. CANCEL HYDROPAC 1278/19.
3. CANCEL THIS MSG 170250Z APR 19.

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.
Cancellation reference
A line that cancels an earlier warning by its number, such as CANCEL HYDROLANT 1085/12.
HYDROPAC
The U.S. long-range warning series for the Pacific outside NAVAREA XII and for the Indian Ocean, Persian Gulf and adjoining seas.
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

807 within 180 nm since 1999 · 0 in the last 12 months · 0 listed in force now

99
00
05
10
15
20
23

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

17 military exercises listed in force · see all

Record snapshot 2026-09-25 06:11Z; 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.