Nav aids

NAVTEX station naha (g) 26-05.5N 127-40.1E at reduced power 2330Z to 0930Z commencing daily 29 and 30 jan,…

Eastern China Sea · HYDROPAC 334/17

What this record establishes

Archived notice · 2017-01-30 12:12Z

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 65/17 291131Z JAN 17.. Issued 2017-01-29 11:47Z. 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
Eastern China Sea. The parsed report position is 26.092, 127.668. 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

Current notices and reporting history in the Eastern China Sea →

issued
2017-01-29 11:47Z
status
Archived notice
self-cancels
2017-02-02 10:30Z
authority
NAVAREA XI 65/17 291131Z JAN 17.
NAVAREA
NAVAREA XI · named as the source of this relay
sea
Eastern China Sea
position
26.092, 127.668
source
NGA MSI broadcast-warn JSON (archive, frozen 2024-05) · first seen 2026-08-17 13:38Z

Original warning text

WESTERN NORTH PACIFIC.
JAPAN.
NANSEI SHOTO.
1. NAVTEX STATION NAHA (G) 26-05.5N 127-40.1E AT
   REDUCED POWER 2330Z TO 0930Z COMMENCING DAILY
   29 AND 30 JAN, ALTERNATE 2330Z TO 0930Z
   COMMENCING DAILY 31 JAN AND 01 FEB.
2. CANCEL THIS MSG 021030Z FEB 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.
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 · aids-to-navigation notices

6 within 180 nm since 2000 · 0 in the last 12 months · 0 listed in force now

00
05
10
15
17

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

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

Record snapshot 2026-10-02 21:52Z; 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.