Nav aids

Sandettie lightfloat 51-09N 001-47E light and fog signal unreliable 0800Z to 1500Z daily 20 thru 22 jul

HYDROLANT 1505/99

issued: 1999-07-20 06:32Z
status: cancelled 1999-07-21 21:53Z (archive)
self-cancels: 1999-07-22 16:00Z
authority: WZ 1295/99 200558Z JUL 99
sea: North Sea
position: 51.150, 1.783
source: nga_json · first seen 2026-08-17 13:38Z

Original warning text

CHART 37120 (2ND ED).
1. SANDETTIE LIGHTFLOAT 51-09N 001-47E LIGHT AND FOG SIGNAL
   UNRELIABLE 0800Z TO 1500Z DAILY 20 THRU 22 JUL.
2. CANCEL THIS MSG 221600Z JUL.

Activity windows · 3 in this warning

opens (UTC)	closes (UTC)	local	length
1999-07-20 08:00Z	1999-07-20 15:00Z	—	7 h
1999-07-21 08:00Z	1999-07-21 15:00Z	—	7 h
1999-07-22 08:00Z	1999-07-22 15:00Z	—	7 h

Parsed from the warning text; outside these windows the area is normally not active, but the warning stays in force until cancelled.

This area · aids-to-navigation notices

1849 within 180 nm since 1997 · 1 in the last 12 months · 0 in force now

East goodwin light vessel 51-13.30N 001-36.40E2026-08-16
Bassurelle buoy 50-32.70N 000-57.70E missing2024-04-16
All navigational aids at platform 49/27-H 53-00.30N 002-12.90E inoperative2024-04-14
All navigational aids at platform 49/27-ED 53-03.60N 002-12.60E inoperative2024-04-12
RACON at bridge buoy 50-39.60N 001-36.90W inoperative2024-04-09
Humber met mast 53-10.70N 002-59.10E unlit and navaids inoperative2024-04-01

Season · when aids-to-navigation notices happen here

month of issue, all years in the archive

Timeline

Cancel HYDROLANT 1505/99 and this msgcancelled by · 1999-07-21

Nearby now · within 120 nm

Nothing else in force within 120 nm.

Worldwide now

193 aids-to-navigation notices in force · see all

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.