Nav aids

Nga chart 36025 (1ST ed)

Wales-northwest Coast · HYDROLANT 1020/11

issued
2011-06-20 17:00Z
status
cancelled 2011-06-23 17:00Z (archive)
self-cancels
2011-06-23 17:00Z
cancels
HYDROLANT 642/10
authority
WZ 634/11 201625Z JUN 11 - SHGA 20 JUN 11.
sea
Irish Sea and St. George's Channel
position
53.417, -4.288
source
nga_json · first seen 2026-08-17 13:38Z

Original warning text

WALES-NORTHWEST COAST.
NGA CHART 36025 (1ST ED).
1. DGPS STATION AT POINT LYNAS LIGHT 53-25.0N 004-17.3W
   OFF AIR 0800Z TO 1600Z DAILY 21 THRU 23 JUN.
2. CANCEL HYDROLANT 642/10(35).
3. CANCEL THIS MSG 231700Z JUN.

Activity windows · 3 in this warning

opens (UTC)closes (UTC)locallength
2011-06-21 08:00Z2011-06-21 16:00Z8 h
2011-06-22 08:00Z2011-06-22 16:00Z8 h
2011-06-23 08:00Z2011-06-23 16:00Z8 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

1698 within 180 nm since 1997 · 2 in the last 12 months · 2 in force now

97
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05
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25
26

Season · when aids-to-navigation notices happen here

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M
J
J
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month of issue, all years in the archive

Timeline

Nearby now · within 120 nm

Worldwide now

195 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.