Other

Fog signal at sandettie lightvessel 51-09N 001-47E at reduced power

North Sea · HYDROLANT 1239/01

What this record establishes

Archived notice · 2001-04-26 14:00Z

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) · WZ 922/01 241315Z APR 01. Issued 2001-04-24 17:28Z. 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. The parsed report position is 51.150, 1.783. 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 Sea →

issued
2001-04-24 17:28Z
status
Archived notice
authority
WZ 922/01 241315Z APR 01
issued by
WZ
sea
North Sea
position
51.150, 1.783
source
NGA MSI broadcast-warn JSON (archive, frozen 2024-05) · first seen 2026-08-17 13:38Z

Original warning text

CHART 37120 (2ND ED).
FOG SIGNAL AT SANDETTIE LIGHTVESSEL 51-09N 001-47E
AT REDUCED POWER.

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.

All warning terms →

Collected reports in this area · other warnings

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

97
00
05
10
15
20
23

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

23 other warnings listed in force · see all

Record snapshot 2026-10-01 15:33Z; source collection times vary.

Other

Everything the classifier did not place elsewhere. All current other warnings →

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.