Exercises

Hazardous operations 100822Z to 100923Z sep, alternate 0806Z to 0923Z daily 11 thru 30 sep in areas bound…

North Pacific Ocean · HYDROPAC 1622/02

What this record establishes

Archived notice · 2002-09-10 13:20Z

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 567/02 050805Z SEP 02. Issued 2002-09-06 06:50Z. 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
North Pacific Ocean. 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 North Pacific Ocean →

Activity windows · 21 in this warning

opens (UTC)closes (UTC)locallength
2002-09-10 08:22Z2002-09-10 09:23Z—1 h 01
2002-09-11 08:06Z2002-09-11 09:23Z—1 h 17
2002-09-12 08:06Z2002-09-12 09:23Z—1 h 17
2002-09-13 08:06Z2002-09-13 09:23Z—1 h 17
2002-09-14 08:06Z2002-09-14 09:23Z—1 h 17
2002-09-15 08:06Z2002-09-15 09:23Z—1 h 17
2002-09-16 08:06Z2002-09-16 09:23Z—1 h 17
2002-09-17 08:06Z2002-09-17 09:23Z—1 h 17
… 13 more

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

issued
2002-09-06 06:50Z
status
Archived notice
self-cancels
2002-09-30 10:23Z
authority
NAVAREA XI 567/02 050805Z SEP 02
NAVAREA
NAVAREA XI · named as the source of this relay
sea
North Pacific Ocean
position
24.117, 163.450
source
NGA MSI broadcast-warn JSON (archive, frozen 2024-05) · first seen 2026-08-17 13:38Z

Original warning text

1. HAZARDOUS OPERATIONS 100822Z TO 100923Z SEP, ALTERNATE
   0806Z TO 0923Z DAILY 11 THRU 30 SEP IN AREAS BOUND BY:
   A. 30-22N 130-58E, 30-19N 131-08E, 30-17N 131-28E,
      30-26N 131-29E, 30-27N 131-09E, 30-25N 130-59E.
   B. 30-04N 132-58E, 30-14N 132-58E, 30-19N 133-13E,
      30-14N 133-51E, 29-58N 133-49E.
   C. 29-46N 134-59E, 30-09N 135-02E, 30-02N 136-01E,
      29-39N 135-58E.
   D. 29-01N 139-20E, 29-51N 139-27E, 29-31N 142-00E,
      29-07N 142-42E, 28-33N 142-37E.
   E. 24-29N 159-12E, 26-20N 159-48E, 23-45N 167-42E,
      21-54N 167-06E.
2.  CANCEL THIS MSG 301023Z 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

15 within 180 nm since 2000 · 0 in the last 12 months · 0 listed in force now

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

10 military exercises listed in force · see all

Record snapshot 2026-10-03 07:42Z; 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.