The Met Office has issued a yellow weather warning for parts of south Wales as heavy rain looks likely to cause flooding in the area.

South Wales could see as much as 200mm of rain in the coming days which is likely to lead to flooding causing disruptions to public transport, roads and power.

The yellow weather warning is set to be in place for 36 hours - from 6am tomorrow (September 19) to 6pm on Wednesday (September 20).

The heavy rain/flood warning will be in place for most of south Wales including Newport, Monmouthshire, Vale of Glamorgan and Swansea.

What to expect from the yellow weather warning in South Wales?

The Met Office issued the yellow weather warning in south Wales due to heavy rain which may lead to flooding.

The yellow weather warning is also set to cause:

  • Flooding
  • Disruptions to bus and train services
  • Longer journey times on roads due to spray and flooding
  • Interruption to power supplies and other services

A Met Office spokesperson added: "Outbreaks of rain, heavy at times, will affect many parts of the UK on Tuesday and Wednesday.

"The heaviest and most persistent rainfall during this period is expected to affect the high ground of northwest England, northwest Wales and south Wales.

"Over the course of this 36 hours in these areas, 50-100 mm of rainfall is likely to accumulate widely, with as much as 150-200 mm in some locations."

What different Met Office weather warnings mean

Locations in Wales set to be affected by heavy rain warning

The yellow weather warning issued by The Met Office due to heavy rain is due to be in place across Wales, including in:

  • Blaenau Gwent
  • Bridgend
  • Caerphilly
  • Cardiff
  • Carmarthenshire
  • Ceredigion
  • Conwy
  • Denbighshire
  • Gwynedd
  • Merthyr Tydfil
  • Monmouthshire
  • Neath Port Talbot
  • Newport
  • Powys
  • Rhondda Cynon Taf
  • Swansea
  • Torfaen
  • Vale of Glamorgan

The yellow weather warning due to heavy rain and flooding will be in place from 6am Tuesday, September 19 to Wednesday, September 20.