Nav aids

Saumarez reef light 21-39.59S 153-46.01E unreliable

Coral Sea · HYDROPAC 454/23

What this record establishes

Archived notice · 2023-02-14 23:53Z

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 X 7/23 092051Z FEB 23.. Issued 2023-02-09 21:32Z. 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
Coral Sea. The parsed report position is -21.660, 153.767. 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 Coral Sea →

issued
2023-02-09 21:32Z
status
Archived notice
authority
NAVAREA X 7/23 092051Z FEB 23.
NAVAREA
NAVAREA X · named as the source of this relay
sea
Coral Sea
position
-21.660, 153.767
source
NGA MSI broadcast-warn JSON (archive, frozen 2024-05) · first seen 2026-08-17 13:38Z

Original warning text

CORAL SEA.
DNC 05.
1. SAUMAREZ REEF LIGHT 21-39.59S 153-46.01E
   UNRELIABLE.
2. CANCEL HYDROPAC 368/23.

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.
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.
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.

All warning terms →

Collected reports in this area · aids-to-navigation notices

81 within 180 nm since 1999 · 3 in the last 12 months · 0 listed in force now

99
00
05
10
15
20
25
26

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

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

Record snapshot 2026-09-30 04:13Z; 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.