The Met Office has issued a yellow warning for heavy rain across Wales this week.

Periods of heavy rain are expected to develop across Wales and northwest England during Thursday and Friday. Accumulations of 30-40 mm can be expected widely, whilst areas of higher ground exposed to strong southwesterly winds are likely to see 50-80 mm. The heaviest rainfall, however, is expected to be across the hills and mountains of northwest Wales where 100-130 mm of rainfall is possible by the end of Friday.

What to expect

There is a small chance that homes and businesses could be flooded, causing damage to some buildings
There is a small chance of fast flowing or deep floodwater causing danger to life
Where flooding occurs, there is a slight chance of delays or cancellations to train and bus services
Spray and flooding could lead to difficult driving conditions and some road closures
There is a small chance that some communities become cut off by flooded roads
There is a slight chance of power cuts and loss of other services to some homes and businesses

Local authorities affected

Blaenau Gwent
Bridgend
Caerphilly
Carmarthenshire
Ceredigion
Conwy
Denbighshire
Gwynedd
Isle of Anglesey
Merthyr Tydfil
Neath Port Talbot
Powys
Rhondda Cynon Taf
Swansea