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'Torrential downpours' to follow heatwave in parts of Wales

It follows recent high temperatures across the country Credit: PA

The Met Office says parts of Wales could be hit by torrential downpours this afternoon and tonight.

It says there could be some disruption, more likely from which may include sudden localised flooding of transport routes, homes and businesses.

Frequent lightning in association with the heaviest rain may also temporarily disrupt power supplies. But, it says, many places will likely see little or no impacts. Indeed many parts of the warning area will see dry and sunny weather through much of the daytime on Wednesday.

The areas affected are :

  • Ceredigion
  • Conwy
  • Denbighshire
  • Flintshire
  • Gwynedd
  • Powys
  • Wrexham

'Be aware' warning of rain for much of Wales

Credit: Frank Rumpenhorst/DPA/PA Images

The Met Office has issued a yellow 'be aware' warning of heavy rain for much of Wales.

It says the rain is expected to be slow moving and heavy at times with as much as 80mm (3 in) in places over high ground; most likely in Snowdonia.

There is the potential for localised flooding along with disruption to some transport routes and difficult driving conditions.

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'Be aware' warning of rain for most of Wales

The Met Office has issued a 'be aware' warning of heavy rain for much of Wales.

The warning's valid until 23.55 Credit: Ben Birchall/PA Wire

It says another broad area of heavy, persistent rain will extend northwards across Wales.

The heaviest rain is expected to reach the south during the morning and to reach north Wales by around the middle of the day.

It says heavy and possibly thundery showers are likely to follow. Strong northeasterly winds will also develop for a time giving gusts of 40-50 mph.

There's also the possibility of localised flooding and disruption to transport, with Great Western Railway announcing this morning that London to Cardiff trains were being cancelled and services to Swansea were being diverted because of flooding between Bristol Parkway and Swindon.

'Be aware' warning of rain for parts of Wales

The warning's valid until 0900 tomorrow. Credit: Karl-Josef Hildenbrand/DPA/PA Images

The Met Office is warning of the risk of localised surface water flooding as thunderstorms sweep in delivering heavy rain.

It says many places will miss them but others could see up to an inch (2.5cm) of rainfall.

The warning's been extended from 0900am today to the same time tomorrow.

It applies to: Blaenau Gwent, Bridgend, Caerphilly, Cardiff, Carmarthenshire, Ceredigion, Merthyr Tydfil, Monmouthshire, Neath Port Talbot, Newport, Pembrokeshire, Powys, Rhondda Cynon Taff, Swansea, Torfaen, Vale of Glamorgan

'Be aware' warning of heavy rain in force for a day and a half

There's a 'be aware' warning of heavy rain in force for much of Wales.

The warning is in force until 1500 tomorrow. Credit: Anthony Devlin/PA

The Met Office says there could be up to 10 centimetres, that's almost 4 inches, of rain on higher ground over the next day and a half.

The rain will also be accompanied by south or southwesterly gales and possibly severe gales at times, especially along Irish Sea coasts and over high ground.

Coastguards say there's a forecast of Storm Force 10 gales for the North Wales coast.

There's the potential for disruption to travel.

'Be aware' rain warning for North Wales

The warning is in force until 4pm Credit: Karl-Josef Hildenbrand/DPA/PA Images

The Met Office has a yellow 'be aware' warning of rain in force for Flintshire and Wrexham.

It says upwards of 30 mm could fall in a few places and there is the risk of minor disruption to travel because of localised surface water flooding.

Conditions are expected to ease during the afternoon.

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