Exercises

Hazardous operations 222104Z to 222229Z sep, alternate 2104Z to 2229Z daily 23 thru 29 sep in areas bound…

Philippine Sea · HYDROPAC 1828/06

What this record establishes

Archived notice · 2006-09-23 01:20Z

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 410/06 180805Z SEP 06.. Issued 2006-09-18 10:20Z. 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 →

Activity windows · 8 in this warning

opens (UTC)closes (UTC)locallength
2006-09-22 21:04Z2006-09-22 22:29Z—1 h 25
2006-09-23 21:04Z2006-09-23 22:29Z—1 h 25
2006-09-24 21:04Z2006-09-24 22:29Z—1 h 25
2006-09-25 21:04Z2006-09-25 22:29Z—1 h 25
2006-09-26 21:04Z2006-09-26 22:29Z—1 h 25
2006-09-27 21:04Z2006-09-27 22:29Z—1 h 25
2006-09-28 21:04Z2006-09-28 22:29Z—1 h 25
2006-09-29 21:04Z2006-09-29 22:29Z—1 h 25

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

issued
2006-09-18 10:20Z
status
Archived notice
self-cancels
2006-09-29 23:29Z
authority
NAVAREA XI 410/06 180805Z SEP 06.
NAVAREA
NAVAREA XI · named as the source of this relay
sea
Philippine Sea
position
16.456, 131.178
source
NGA MSI broadcast-warn JSON (archive, frozen 2024-05) · first seen 2026-08-17 13:38Z

Original warning text

1. HAZARDOUS OPERATIONS 222104Z TO 222229Z SEP, 
   ALTERNATE 2104Z TO 2229Z DAILY 23 THRU 29 SEP
   IN AREAS BOUND BY:
   A. 29-45-30N 131-53-03E, 29-50-46N 132-04-59E,
      29-32-10N 132-04-22E, 29-26-14N 132-04-22E.
   B. 16-57-23N 130-29-04E, 16-54-11N 131-46-21E,
      16-55-32N 132-17-59E, 16-00-29N 130-58-00E.
2. CANCEL THIS MSG 292329Z SEP.

Reading this warning

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.
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

4 within 180 nm since 2006 · 0 in the last 12 months · 0 listed in force now

06
08

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 2026-10-02 05:56Z; 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.