Exercises

Hazardous operations 202104Z to 202229Z feb, alternate 2104Z to 2229Z daily 21 thru 27 feb, in areas bound…

Philippine Sea · HYDROPAC 267/06

What this record establishes

Archived notice · 2006-02-21 10:13Z

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 56/06 19 FEB 06.. Issued 2006-02-19 15:35Z. 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 →

Activity windows · 8 in this warning

opens (UTC)closes (UTC)locallength
2006-02-20 21:04Z2006-02-20 22:29Z—1 h 25
2006-02-21 21:04Z2006-02-21 22:29Z—1 h 25
2006-02-22 21:04Z2006-02-22 22:29Z—1 h 25
2006-02-23 21:04Z2006-02-23 22:29Z—1 h 25
2006-02-24 21:04Z2006-02-24 22:29Z—1 h 25
2006-02-25 21:04Z2006-02-25 22:29Z—1 h 25
2006-02-26 21:04Z2006-02-26 22:29Z—1 h 25
2006-02-27 21:04Z2006-02-27 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
2006-02-19 15:35Z
status
Archived notice
self-cancels
2006-02-27 23:59Z
authority
NAVAREA XI 56/06 19 FEB 06.
NAVAREA
NAVAREA XI · named as the source of this relay
sea
Philippine Sea
position
15.938, 129.429
source
NGA MSI broadcast-warn JSON (archive, frozen 2024-05) · first seen 2026-08-17 13:38Z

Original warning text

1. HAZARDOUS OPERATIONS 202104Z TO 202229Z FEB,
   ALTERNATE 2104Z TO 2229Z DAILY 21 THRU 27 FEB,
   IN AREAS BOUND BY:
   A. 29-39-23N 131-22-02E, 29-42-45N 131-34-08E,
      29-23-05N 131-44-25E, 29-18-42N 131-31-12E.
   B. 16-34-14N 128-31-56E, 16-24-08N 129-45-45E,
      15-15-45N 130-21-44E, 15-28-24N 129-05-09E.
2. CANCEL THIS MSG 272359Z FEB.

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

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

03
05
09

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 05:57Z; 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.