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Llangennech Flooding

Carmarthenshire • Live river level monitoring on Morlais
1 monitoring station
1 river
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Wales — NRW flood warnings

NRW has no flood warnings or alerts in force in Wales. Last successful check: 2026-11-04 07:48:02 UTC.

No current NRW warning or alert matched the location of Llangennech River Station. That does not establish warning coverage for the whole town: only these gauge points were checked.

Messages: Natural Resources Wales flood warnings API. Warning-area boundaries: Contains Natural Resources Wales information © Natural Resources Wales and Database Right. All rights Reserved. Reused under the Open Government Licence v3.0. Boundaries from DataMapWales.

Flood risk in Llangennech today: Normal

No official flood warning is active nearby and the closest river stations are within normal ranges.

Updated 2026-11-04 07:49:56 UTC · Official GOV.UK warnings · Flood preparation & help guide

About Llangennech
Llangennech
Village and community in Carmarthenshire, Wales

Llangennech is a village and community in the area of Llanelli, Carmarthenshire, Wales, which covers an area of 1,222 hectares (4.72 mi2).

From Wikipedia, the free encyclopedia (CC BY-SA 4.0). Photo: Wikimedia Commons
Flood Contacts
Floodline 24hr
0345 988 1188
Emergency
999
The map of Llangennech’s gauges and flood maps loads as you reach it.

Flood Zones, Warning Areas and Surface Water are Environment Agency maps and cover England only. Llangennech is in Wales, so they draw little or nothing here — that is where the map ends, not an absence of flood risk. Natural Resources Wales’s warning areas have their own pages under flood areas.

Recent Flood Events
27 Oct 2026 03:21 Flood Alert Natural Resources Wales
Rivers Gwendraeths
26 Oct 2026 14:49 Flood Alert Natural Resources Wales
North Gower Coast
26 Oct 2026 10:21 Flood Alert Natural Resources Wales
Rivers Nant-Y-Fendrod and Nant Bran
26 Oct 2026 10:20 Flood Alert Natural Resources Wales
Rivers Gwendraeths
24 Oct 2026 18:00 Flood Alert Natural Resources Wales
Lower Tawe
24 Oct 2026 17:50 Flood Warning Natural Resources Wales
River Lower Clydach at Clydach Bridge

The watercourse nearest Llangennech

The nearest watercourse on the river map is Afon Morlais (River Morlais), about 20 m from the middle of Llangennech's gauges. It flows on to the sea.

A gauge downstream shows water that has already passed this point; one upstream sees it first. Distances along the river are from the point on Afon Morlais (River Morlais) nearest the middle of Llangennech's gauges. From Ordnance Survey’s river map (OS Open Rivers), which leaves out small streams, ditches and culverts, so a nearer one may exist. This describes where water goes on the map; it says nothing about flooding at any address. Contains OS data © Crown copyright and database rights 2026.

Useful Links
Flood Monitoring in Llangennech

Llangennech is monitored by 1 Natural Resources Wales river level station on the Morlais, in Carmarthenshire. Water levels are updated every 15 minutes, providing real-time flood monitoring for the area.

Monitoring Stations

The Morlais is monitored by 1 station (Llangennech River Station). Each station records water levels continuously, with data synced to FloodRadar every 5 minutes.

Environment Agency Flood Warning Areas

No Environment Agency flood warning area is mapped within 10km of Llangennech. That means the EA has not defined a warning target area here, which is not evidence the town cannot flood: warning areas exist where the EA runs a warning service, and surface-water and groundwater flooding have no warning areas at all. The EA’s register covers England only — Llangennech is in Wales, where the warning service is Natural Resources Wales’s, and FloodRadar publishes its areas alongside the EA’s on the flood areas index.

Sewage Discharge Monitoring

There are 44 storm overflows within 5km of Llangennech. None of the 42 with a reporting monitor are currently discharging (2 have no live status right now). Enable "Sewage" on the map above to see their locations.

6 of them, nearest first, with their own page of live status and past discharges:

What To Do During A Flood

If flooding is forecast in Llangennech, call Floodline on 0345 988 1188 for the latest information. Move valuables upstairs, turn off gas and electricity if safe to do so, and avoid walking or driving through flood water. Sign up for flood warnings on any station page above to receive email alerts when water levels rise. For emergency numbers, a preparation checklist and insurance guidance, see our flood help & preparation guide.

How much rain falls on Llangennech

Llangennech gets about 1,352 mm of rain a year on average (wettest month October, 154 mm; driest April, 77 mm). That is 16% wetter than the UK as a whole, which averages 1,163 mm a year. See the rain gauges →

A thirty-year average for the area, not a forecast and not a flood risk on its own. Source: Met Office HadUK-Grid 1991–2020 (5 km grid), 1.3 km away. Average rainfall: HadUK-Grid v1.3.2, Met Office. Contains public sector information licensed under the Open Government Licence v3.0.

Recorded floods near Llangennech

No recorded flood outline within ~5 km of the Llangennech town centre means no flood was mapped here, which is not evidence none happened: the Environment Agency mapped only some floods, mapping effort rose sharply after about 2000, and surface-water flooding is largely absent from this record. The Environment Agency's Recorded Flood Outlines cover England only, and Llangennech is in Wales — so an empty record here is an absence of coverage, not an absence of floods. Open the recorded-floods map →

Frequently asked questions

Is there flooding in Llangennech today?

Current verdict: Normal. No official flood warning is active nearby and the closest river stations are within normal ranges.

Which rivers affect Llangennech?

Llangennech has river level monitoring on Morlais — 1 monitoring station in total.

How do I check official flood warnings for Llangennech?

Use Natural Resources Wales flood warnings (flood-warning.naturalresources.wales) or call Floodline on 0345 988 1188 (24 hours). You can also set up free FloodRadar email or browser alerts from any station page above.

What should I do during a flood warning?

Follow official advice: move valuables and vehicles to safety, never walk or drive through flood water, turn off gas and electricity if safe, and check on vulnerable neighbours. See our flood preparation guide at floodradar.co.uk/flood-help.

Has Llangennech flooded before?

No recorded flood outline is mapped around the Llangennech town centre means no flood was mapped here, which is not evidence none happened: the Environment Agency mapped only some floods, mapping effort rose sharply after about 2000, and surface-water flooding is largely absent from this record. The Environment Agency's Recorded Flood Outlines cover England only, and Llangennech is in Wales — so an empty record here is an absence of coverage, not an absence of floods. FloodRadar holds at least 10 Natural Resources Wales flood warnings or alerts recorded within 15 km of Llangennech, the most recent on 27 October 2026. See the flood history link below.

🏠 Buying or renting around here? Get the Property Flood-Risk Report for any English postcode — official risk band, recorded floods, warning history, river behaviour and nearby storm overflows. £19 one-off. Learn more →