Nav aids

Dgps service at loop head light 52-34N 009-56W unreliable 130900Z to 131800Z mar

HYDROLANT 500/99

issued: 1999-03-12 19:19Z
status: cancelled 1999-03-13 00:00Z (archive)
self-cancels: 1999-03-13 19:00Z
cancels: HYDROLANT 494/99
sea: North Atlantic Ocean
position: 52.567, -9.933
source: nga_json · first seen 2026-08-17 13:38Z

Original warning text

CHART 35380 (8TH ED).
1. DGPS SERVICE AT LOOP HEAD LIGHT 52-34N 009-56W
   UNRELIABLE 130900Z TO 131800Z MAR.
2. CANCEL HYDROLANT 494/99.
3. CANCEL THIS MSG 131900Z MAR.

Activity windows · 1 in this warning

opens (UTC)	closes (UTC)	local	length
1999-03-13 09:00Z	1999-03-13 18:00Z	—	9 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

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

South bishop light 51-51.20N 005-24.70W range temporarily reduced to nine miles2024-01-30
Odas buoy M2 53-28.00N 005-25.00W unlit2023-12-10
East kish buoy 53-14.30N 005-53.60W unlit2023-11-27
Youghal light 51-56.60N 007-50.50W unlit2023-11-11
Balbriggan island light 53-36.80N 006-10.90W unlit2023-09-22
Kish bank light 53-18.60N 005-55.60W unreliable until 01 dec2022-11-29

Season · when aids-to-navigation notices happen here

month of issue, all years in the archive

Timeline

Dgps service at loop head light 52-34N 009-56W unreliable 0900Z to 1300Z daily 12 and 13 marreplaced · 1999-03-12

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.