Nav aids

Cancel HYDROLANT 385/12

Celtic Sea · HYDROLANT 392/12

What this record establishes

Archived notice · 2012-02-20 21:42Z

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) · WZ 282/12 191146Z FEB 12.. Issued 2012-02-19 14:10Z. 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
Celtic Sea. The parsed report position is 51.693, -5.287. 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 Celtic Sea →

issued
2012-02-19 14:10Z
status
Archived notice
self-cancels
2012-02-21 09:00Z
authority
WZ 282/12 191146Z FEB 12.
issued by
WZ
sea
Celtic Sea
position
51.693, -5.287
source
NGA MSI broadcast-warn JSON (archive, frozen 2024-05) · first seen 2026-08-17 13:38Z

Original warning text

WALES-SOUTHWEST COAST.
CHART 36035
1. SKOKHOLM LIGHT 51-41.6N 005-17.2W UNRELIABLE
   UNTIL 210800Z FEB.
2. CANCEL HYDROLANT 385/12.
3. CANCEL THIS MSG 210900Z FEB.

Reading this warning

Chart reference
The number of the nautical chart on which the reported position lies.
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.
HYDROLANT
The U.S. long-range warning series for Atlantic waters outside NAVAREA IV, including the eastern Atlantic, the Mediterranean 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

1709 within 180 nm since 1997 · 2 in the last 12 months · 0 listed in force now

97
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

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

Record snapshot 2026-09-25 10:05Z; 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.