Nav aids

NAVTEX station yokohama 35-14.5N 139-55.3E off air 070140Z to 070340Z mar

North Pacific Ocean · HYDROPAC 647/16

What this record establishes

Archived notice · 2016-03-07 04:40Z

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 142/16 061155Z MAR 16.. Issued 2016-03-06 12:47Z. 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 parsed report position is 35.242, 139.922. It is a position in the source message, not a live location. Check the original wording for limits and qualifications.

Current notices and reporting history in the North Pacific Ocean →

Activity windows · 1 in this warning

opens (UTC)	closes (UTC)	local	length
2016-03-07 01:40Z	2016-03-07 03:40Z	—	2 h

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

issued: 2016-03-06 12:47Z
status: Archived notice
self-cancels: 2016-03-07 04:40Z
authority: NAVAREA XI 142/16 061155Z MAR 16.
NAVAREA: NAVAREA XI · named as the source of this relay
sea: North Pacific Ocean
position: 35.242, 139.922
source: NGA MSI broadcast-warn JSON (archive, frozen 2024-05) · first seen 2026-08-17 13:38Z

Original warning text

WESTERN NORTH PACIFIC.
JAPAN.
NAVTEX.
DNC 12, DNC 23, DNC 24.
1. NAVTEX STATION YOKOHAMA 35-14.5N 139-55.3E OFF AIR
   070140Z TO 070340Z MAR. YOKOHAMA BROADCASTS WILL
   BE TRANSMITTED FROM NAVTEX STATIONS MOJI AND KUSHIRO.
2. CANCEL THIS MSG 070440Z MAR 16.

Reading this warning

NAVTEX: An automated medium-frequency radio service that sends coastal warnings as text to a small printer or screen on board.
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.
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

6 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.

NAVTEX station yokohama (I) 35-14.55N 139-55.28E off air2024-02-06
NAVTEX station yokohama (I) 35-14.6N 139-55.3E off air 230555Z to 230740Z and 260555Z to 260950Z feb2017-02-17
NAVTEX station yokohama (I) 35-14.6N 139-55.3E off air2017-01-30
Omaezaki light 34-35.6N 138-13.7E unlit2001-09-13
Cape spencer light 35-18.0N 136-53.1E unlit2000-05-03

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

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

Record snapshot 2026-10-02 17:01Z; 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.