Nav aids

Fog signal at platform 49/24 53-13.9N 002-37.3E inoperative

North Sea · England · HYDROLANT 1199/21

What this record establishes

Archived notice · 2021-06-10 08:22Z

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 497/21 301227Z APR 21.. Issued 2021-04-30 16:42Z. 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 Sea · England. The parsed report position is 24.887, 2.622. 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

issued
2021-04-30 16:42Z
status
Archived notice
authority
WZ 497/21 301227Z APR 21.
issued by
WZ
position
24.887, 2.622
source
NGA MSI broadcast-warn JSON (archive, frozen 2024-05) · first seen 2026-08-17 13:38Z

Original warning text

NORTH SEA.
ENGLAND.
DNC 20.
1. FOG SIGNAL AT PLATFORM 49/24 53-13.9N 002-37.3E
   INOPERATIVE.
2. CANCEL HYDROLANT 774/21.

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.
HYDROLANT
The U.S. long-range warning series for Atlantic waters outside NAVAREA IV, including the eastern Atlantic, the Mediterranean and adjoining seas.

All warning terms →

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

3 within 180 nm since 2010 · 0 in the last 12 months · 0 listed in force now

10
15
20
21

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 06:09Z; 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.