Four days of yellow weather warnings have been issued by the Met Office as Wales braces itself for outbreaks of heavy rain.

The first of a series of warnings began on Thursday morning, and an another two are set to span the Halloween weekend.

Met Office chief meteorologist Andy Page said: “Until the end of October we are looking at an unsettled spell of typical autumnal weather which will dominate the forecast. Every year we expect the remnants of decaying tropical hurricanes to disrupt conditions when they enter the North Atlantic.

“The remnants of former Hurricane Epsilon have been subsumed into another deep area of low pressure to the south-west of Iceland, and although the low centre is a long way from our shores and won’t cause disruption, the trailing weather fronts associated with this system will bring wind and rain to the UK, along with a potentially heavy swell."

The first warning came into effect on Thursday as outbreaks of rain began moving across the UK

However, rain is set to be fiercer than wind throughout the week as the weather pattern drags moist and warm air into the UK from the south Atlantic.

This will trigger heavy rainfall for western parts of the UK, particularly on high ground.

The first warning began at 9am on Thursday (October 29) and is due to last until 11.59pm on Friday.

Affected areas: Blaenau Gwent, Bridgend, Caerphilly, Cardiff, Carmarthenshire, Ceredigion, Conwy, Denbighshire, Gwynedd, Isle of Anglesey, Merthyr Tydfil, Monmouthshire, Neath Port Talbot, Newport, Pembrokeshire, Powys, Rhondda Cynon Taf, Swansea, Torfaen, Vale of Glamorgan

Continuing periods of heavy rain on Saturday may lead to further flooding and disruption to transport. As a result, a second warning will come into force at midnight on Saturday and last until 9pm.

Affected areas: Blaenau Gwent, Bridgend, Caerphilly, Cardiff, Carmarthenshire, Ceredigion, Conwy, Denbighshire, Gwynedd, Isle of Anglesey, Merthyr Tydfil, Monmouthshire, Neath Port Talbot, Newport, Pembrokeshire, Powys, Rhondda Cynon Taf, Swansea, Torfaen, Vale of Glamorgan

The final warning of the weekend then begins at 9am on Sunday and lasts until 11.59pm.

Affected areas: Blaenau Gwent, Bridgend, Caerphilly, Cardiff, Carmarthenshire, Ceredigion, Conwy, Denbighshire, Gwynedd, Isle of Anglesey, Merthyr Tydfil, Monmouthshire, Neath Port Talbot, Newport, Pembrokeshire, Powys, Rhondda Cynon Taf, Swansea, Torfaen, Vale of Glamorgan, Wrexham

Warning areas can see accumulations of 30-40mm of rain, while more isolated areas exposed to the winds could see 50-80mm.

The heaviest rain is set to fall over the mountains of Wales, where up to 130mm is possible.

The persistent, heavy rainfall may lead to the flooding of homes and businesses, causing damage to some buildings. Power cuts and disruption to other services is also possible.

Saturday (left) and Sunday's (right) weather-warned areas in Wales

The Met Office said people should be alert for fast flowing or deep floodwater.

Anyone heading out during the stormy weather should prepare for delays or cancellations to train and bus services. Spray and flooding could lead to difficult driving conditions and some road closures.

Here's what to expect where you live:

Cardiff

Swansea

Tenby

Aberporth

Aberystwyth

Porthmadog

Rhyl

Builth Wells