Nav aids

Cancel this msg 152000Z aug 12

North Atlantic Ocean · NAVAREA IV 448/12

What this record establishes

Archived notice · 2012-08-15 20:00Z

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) · COGARD NAVCEN DGPS 391/12 151332Z AUG 12.. Issued 2012-08-15 14:21Z. 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 Atlantic Ocean. The parsed report position is 43.983, -64.667. 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 Atlantic Ocean →

issued: 2012-08-15 14:21Z
status: Archived notice
self-cancels: 2012-08-15 20:00Z
authority: COGARD NAVCEN DGPS 391/12 151332Z AUG 12.
NAVAREA: NAVAREA IV
issued by: COGARD NAVCEN
sea: North Atlantic Ocean
position: 43.983, -64.667
source: NGA MSI broadcast-warn JSON (archive, frozen 2024-05) · first seen 2026-08-17 13:38Z

Original warning text

WESTERN NORTH ATLANTIC.
NOVA SCOTIA.
CHART 14001
1. WESTERN HEAD DGPS STATION 43-59N 064-40W
   UNUSABLE UNTIL 151900Z AUG.
2. CANCEL THIS MSG 152000Z AUG 12.

Reading this warning

Chart reference: The number of the nautical chart on which the reported position lies.
GNSS / GPS: Satellite positioning — GPS and other systems — and the testing, jamming and interference that make it unreliable in an area.
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.
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

8 within 180 nm since 1999 · 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.

Sandwich point range rear light 44-35.2N 063-33.1W unlit2015-11-26
Cancel this msg 182200Z mar 142014-03-16
Nova Scotia2013-11-21
Nova Scotia2013-02-17
B. 43-29.4N 063-20.4W2012-11-26
Nga chart 14001 (0 ed)2011-10-31

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

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

Record snapshot 2026-10-02 11:49Z; 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.