Exercises

Gunnery exercises 2300Z to 1000Z daily 04 oct thru 04 nov in area bound by 44-05.00N 146-56.00E, 44-05.00N…

Sea of Okhotsk · HYDROPAC 3103/23

What this record establishes

Archived notice · 2023-11-05 11:00Z

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) · VLADIVOSTOK 183/23 290905Z SEP 23.. Issued 2023-09-29 09:25Z. 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 · 32 in this warning

opens (UTC)closes (UTC)locallength
2023-10-04 23:00Z2023-10-05 10:00Z—11 h
2023-10-05 23:00Z2023-10-06 10:00Z—11 h
2023-10-06 23:00Z2023-10-07 10:00Z—11 h
2023-10-07 23:00Z2023-10-08 10:00Z—11 h
2023-10-08 23:00Z2023-10-09 10:00Z—11 h
2023-10-09 23:00Z2023-10-10 10:00Z—11 h
2023-10-10 23:00Z2023-10-11 10:00Z—11 h
2023-10-11 23:00Z2023-10-12 10:00Z—11 h
… 24 more

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

issued
2023-09-29 09:25Z
status
Archived notice
self-cancels
2023-11-05 11:00Z
authority
VLADIVOSTOK 183/23 290905Z SEP 23.
issued by
VLADIVOSTOK
sea
Sea of Okhotsk
position
44.033, 146.808
source
NGA MSI broadcast-warn JSON (archive, frozen 2024-05) · first seen 2026-08-17 13:38Z

Original warning text

SEA OF OKHOTSK.
WESTERN NORTH PACIFIC.
KURIL ISLANDS.
DNC 24.
1. GUNNERY EXERCISES 2300Z TO 1000Z DAILY
   04 OCT THRU 04 NOV IN AREA BOUND BY
   44-05.00N 146-56.00E, 44-05.00N 146-43.50E,
   43-59.00N 146-41.00E, 43-59.00N 146-53.50E.
2. CANCEL THIS MSG 051100Z NOV 23.

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.
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

34 within 180 nm since 2010 · 2 in the last 12 months · 0 listed in force now

10
15
20
25
26

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

Worldwide in the collected sources

28 military exercises listed in force · see all

Record snapshot 2026-10-01 17:30Z; 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.