Nav aids

NAVTEX station otaru (j) 43-19.5N 140-26.8E off air 010200Z to 010230Z and 010600Z to 010630Z mar

Western North Pacific · Sea of Japan · Japan · HYDROPAC 704/17

What this record establishes

Archived notice · 2017-03-01 07:30Z

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 148/17 271207Z FEB 17.. Issued 2017-02-27 13:07Z. 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.

Related notices and cancellation links

Activity windows · 2 in this warning

opens (UTC)closes (UTC)locallength
2017-03-01 02:00Z2017-03-01 02:30Z—30 min
2017-03-01 06:00Z2017-03-01 06:30Z—30 min

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

issued
2017-02-27 13:07Z
status
Archived notice
self-cancels
2017-03-01 07:30Z
authority
NAVAREA XI 148/17 271207Z FEB 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.
DNC 24.
1. NAVTEX STATION OTARU (J) 43-19.5N 140-26.8E
   OFF AIR 010200Z TO 010230Z AND
   010600Z TO 010630Z MAR. OTARU BROADCASTS
   WILL BE TRANSMITTED FORM NAVTEX STATION
   KUSHIRO (K) 42-57.4N 144-35.4E.
2. CANCEL HYDROPAC 411/17.
3. CANCEL THIS MSG 010730Z MAR 17.

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.
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.
Cancellation reference
A line that cancels an earlier warning by its number, such as CANCEL HYDROLANT 1085/12.
HYDROPAC
The U.S. long-range warning series for the Pacific outside NAVAREA XII and for the Indian Ocean, Persian Gulf and adjoining seas.
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

00
05
10
15
20
24

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

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.