Nav aids

NAVTEX station otaru (j) 43-19.5N 140-26.8E off air 04001Z to 040500Z mar

Western North Pacific · Sea of Japan · Japan · HYDROPAC 760/17

What this record establishes

Archived notice · 2017-03-04 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 XI 154/17 031207Z MAR 17.. Issued 2017-03-03 13:19Z. 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: Western North Pacific · Sea of Japan · Japan. The parsed report position is 43.141, 142.518. It is a position in the source message, not a live location. Check the original wording for limits and qualifications.

issued: 2017-03-03 13:19Z
status: Archived notice
self-cancels: 2017-03-04 06:00Z
authority: NAVAREA XI 154/17 031207Z MAR 17.
NAVAREA: NAVAREA XI · named as the source of this relay
position: 43.141, 142.518
source: NGA MSI broadcast-warn JSON (archive, frozen 2024-05) · first seen 2026-08-17 13:38Z

Original warning text

WESTERN NORTH PACIFIC.
SEA OF JAPAN.
JAPAN.
1. NAVTEX STATION OTARU (J) 43-19.5N 140-26.8E
   OFF AIR 04001Z TO 040500Z MAR.
   OTARU BROADCASTS WILL BE TRANSMITTED FROM
   NAVTEX STATION KUSHIRO (K) 42-57.4N 144-35.4E.
2. CANCEL THIS MSG 040600Z MAR 17.

Reading this warning

NAVTEX: An automated medium-frequency radio service that sends coastal warnings as text to a small printer or screen on board.
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.
Inoperative / unreliable / off air: An aid or radio service is not working as charted or published.
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.
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 · aids-to-navigation notices

16 within 180 nm since 2000 · 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

137 aids-to-navigation notices listed in force · see all

Record snapshot 2026-10-02 02:56Z; source collection times vary.

Nav aids

Lights extinguished, buoys off station, RACON/NAVTEX outages. All current aids-to-navigation notices →

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.