Wales weather warning for Sunday and Monday amid flood risk

Heavy rain across Wales on Sunday and Monday has triggered four weather warnings, including an amber “possible risk to life” alert, as saturated ground raises the likelihood of flooding and transport disruption.

Did You Know? The Met Office forecasts up to 100mm (4 in) of rain over south and west Wales within a 24‑hour period, falling on already water‑logged soil.

The Met Office issued separate warnings for north, mid and south Wales after recent flooding from Storm Bram and “devastating” floods in Monmouth caused by Storm Claudia. Natural Resources Wales (NRW) warned residents in south Wales to prepare for potentially significant overnight flooding.

At present there are eight flood warnings and 41 flood alerts active across the country.

Areas under alert

  • An amber warning for rain covers much of south Wales from Pembrokeshire to Newport until 21:00 on Monday.
  • A yellow warning spans Blaenau Gwent, Bridgend, Caerphilly, Cardiff, Carmarthenshire, Ceredigion, Merthyr Tydfil, Neath Port Talbot, Pembrokeshire, Powys, Rhondda Cynon Taf, Swansea and the Vale of Glamorgan throughout Monday.
  • A second yellow warning applies to Ceredigion, Conwy, Denbighshire, Gwynedd and Powys from 18:00 on Sunday until 15:00 on Monday.
  • A further yellow warning covers Flintshire and Wrexham from 18:00 on Sunday until midnight on Monday.

The Met Office warned that recent wet weather has left soils saturated, increasing the chance of impacts, and noted a specific flood risk for Dolgellau in Gwynedd.

Transport has already been affected: train services between Llandudno Junction and Blaenau Ffestiniog were cancelled on Monday morning, with disruptions expected to last the day. Police have also advised motorists to avoid the A487 in Nasareth, Gwynedd, due to flooding.

Expert Insight: The convergence of saturated ground and a high-volume rain event creates a perfect storm for flash flooding. Communities should treat the amber alert seriously, as water levels can rise rapidly, especially in low‑lying river valleys and urban drainage networks.

NRW is working with the Flood Forecasting Centre, emergency responders and local authorities to monitor forecasts and coordinate any required actions. Sally Davies, NRW’s duty tactical manager, emphasized the need for residents to act now, recommending flood kits, moving valuables to higher ground and securing vehicles.

Frequently Asked Questions

What weather warnings are currently active in Wales?

There is an amber rain warning for much of south Wales and several yellow rain warnings covering parts of north, mid and south Wales, including specific regions such as Ceredigion, Conwy, Denbighshire, Gwynedd, Powys, Flintshire and Wrexham.

How many flood warnings and alerts have been issued?

NRW reports eight flood warnings and 41 flood alerts are in place across Wales.

Which transport services have been disrupted by the flooding?

Train services between Llandudno Junction and Blaenau Ffestiniog were cancelled on Monday morning, and police have advised drivers to avoid the A487 in Nasareth due to flooding.

How are you preparing for the potential impact of this weather system?

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