Restricted

Navigation prohibited 2100Z to 1200Z commencing daily 25 thru 29 mar in area bound by 42-50.7N 134-29.0E,…

Japan Sea · HYDROPAC 513/07

What this record establishes

Archived notice · 2007-03-30 13:00Z

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 06/07 20 MAR 07.. Issued 2007-03-20 14:29Z. 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: Japan 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 Japan Sea →

Activity windows · 5 in this warning

opens (UTC)	closes (UTC)	local	length
2007-03-25 21:00Z	2007-03-26 12:00Z	—	15 h
2007-03-26 21:00Z	2007-03-27 12:00Z	—	15 h
2007-03-27 21:00Z	2007-03-28 12:00Z	—	15 h
2007-03-28 21:00Z	2007-03-29 12:00Z	—	15 h
2007-03-29 21:00Z	2007-03-30 12:00Z	—	15 h

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

issued: 2007-03-20 14:29Z
status: Archived notice
self-cancels: 2007-03-30 13:00Z
authority: NAVAREA XIII 06/07 20 MAR 07.
NAVAREA: NAVAREA XIII · named as the source of this relay
sea: Japan Sea
position: 42.956, 134.481
source: NGA MSI broadcast-warn JSON (archive, frozen 2024-05) · first seen 2026-08-17 13:38Z

Original warning text

CHART 96060 (7TH ED).
1. NAVIGATION PROHIBITED 2100Z TO 1200Z COMMENCING
   DAILY 25 THRU 29 MAR IN AREA BOUND BY
   42-50.7N 134-29.0E, 42-59.8N 134-20.0E,
   43-04.0N 134-28.2E, 42-55.2N 134-37.9E.
2. CANCEL THIS MSG 301300Z MAR.

Reading this warning

Chart reference: The number of the nautical chart on which the reported position lies.
Navigation prohibited: Ships may not enter or pass through the area, or a port is closed to traffic.
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 · restricted areas & port closures

9 within 180 nm since 2003 · 0 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

No other collected notice is currently listed in force within this radius. This does not establish safe conditions.

Worldwide in the collected sources

2 restricted areas & port closures listed in force · see all

Record snapshot 2026-10-03 23:16Z; source collection times vary.

Restricted

Navigation prohibited, exclusion and security zones, ports closed to traffic. All current restricted areas & port closures →

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.