Flood maps for Northern Ireland are published by the Department for Infrastructure (DfI Rivers), but not as open data, so this site cannot show a figure for Loy. Check a specific address on Flood Maps NI.
Environment Agency National Flood Risk Assessment (NaFRA2, January 2025): the level shown is the highest risk that applies to at least 5% of the 1 km square centred on Loy; bars show each level’s share of that square. Nearest named watercourse from OS Open Rivers. Contains Environment Agency and Ordnance Survey data, Open Government Licence.