Nav aids

Dgps service at mizzen light 51-27N 009-49W unreliable 280900Z to 281600Z apr

HYDROLANT 845/99

issued: 1999-04-28 06:05Z
status: cancelled 1999-04-28 00:00Z (archive)
self-cancels: 1999-04-28 17:00Z
sea: Celtic Sea
position: 51.450, -9.817
source: nga_json · first seen 2026-08-17 13:38Z

Original warning text

CHART 35400 (11TH ED).
1. DGPS SERVICE AT MIZZEN LIGHT 51-27N 009-49W
   UNRELIABLE 280900Z TO 281600Z APR.
2. CANCEL THIS MSG 281700Z APR.

Activity windows · 1 in this warning

opens (UTC)	closes (UTC)	local	length
1999-04-28 09:00Z	1999-04-28 16:00Z	—	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

515 within 180 nm since 1998 · 0 in the last 12 months · 0 in force now

Bishop rock light 49-52.40N 006-26.70W unreliable2024-04-11
Fog signal at longships light 50-04.00N 005-44.80W inoperative2024-03-20
Cgoc falmouth mf r/t services at scilly isle site in 49-55.70N 006-18.20W off air2024-03-01
South bishop light 51-51.20N 005-24.70W range temporarily reduced to nine miles2024-01-30
East kish buoy 53-14.30N 005-53.60W unlit2023-11-27
Youghal light 51-56.60N 007-50.50W unlit2023-11-11

Season · when aids-to-navigation notices happen here

month of issue, all years in the archive

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.