Exercises

Hazardous operations 1900Z to 0500Z commencing daily 13, 14 and 18 thru 20 oct, 151600Z to 160200Z and…

Sea of Okhotsk · HYDROPAC 1855/09

What this record establishes

Archived notice · 2009-10-21 06:00Z

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 XIII 44/09 13 OCT 09.. Issued 2009-10-13 11:17Z. 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: Sea of Okhotsk. 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 Sea of Okhotsk →

Activity windows · 2 in this warning

opens (UTC)	closes (UTC)	local	length
2009-10-15 16:00Z	2009-10-16 02:00Z	—	10 h
2009-10-16 17:00Z	2009-10-16 23:00Z	—	6 h

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

issued: 2009-10-13 11:17Z
status: Archived notice
self-cancels: 2009-10-21 06:00Z
authority: NAVAREA XIII 44/09 13 OCT 09.
NAVAREA: NAVAREA XIII · named as the source of this relay
sea: Sea of Okhotsk
position: 52.401, 154.110
source: NGA MSI broadcast-warn JSON (archive, frozen 2024-05) · first seen 2026-08-17 13:38Z

Original warning text

1. HAZARDOUS OPERATIONS 1900Z TO 0500Z COMMENCING
   DAILY 13, 14 AND 18 THRU 20 OCT,
   151600Z TO 160200Z AND 161700Z TO 162300Z OCT
   IN AREAS BOUND BY:
   A. 47-35.0N 150-20.0E, 48-10.0N 150-35.0E,
      48-10.0N 151-14.5E, 47-35.0N 150-50.0E.
   B. 48-00.0N 151-00.0E, 48-15.7N 151-01.9E,
      48-27.4N 151-12.8E, 51-30.2N 153-57.0E,
      52-02.3N 154-05.6E, 55-15.7N 154-08.5E,
      55-51.8N 154-39.1E, 56-26.2N 155-31.9E,
      56-31.2N 155-52.2E, 55-13.0N 155-30.9E,
      55-07.0N 155-24.1E, 51-30.0N 155-15.0E,
      48-17.5N 151-34.0E, 48-06.5N 151-21.1E.
2. CANCEL THIS MSG 210600Z OCT.

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

7 within 180 nm since 2006 · 1 in the last 12 months · 0 listed in force now

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

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

Missile operations 1400Z to 0900Z daily 05 thru 15 oct in area bound by 56-34.00N 154-14.00E, 56-34.00N…Missiles · 118.5 nm

Worldwide in the collected sources

9 military exercises listed in force · see all

Record snapshot 2026-10-03 21:53Z; 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.