Outbreaks of heavy rain and some thawing snow could lead to some localised flooding in places.
The expected rainfall is 15 to 25mm falling in less than an hour and could be combined with the thawing of some lying snow, which could lead to travel disruption.
Traffic Wales South has urged drivers to take care while travelling in difficult conditions.
What to expect
- A slight chance of power cuts and loss of other services to some homes and businesses.
- A small chance that homes and businesses could be flooded, causing damage to some buildings.
- A light chance of delays or cancellations to train and bus services, where flooding occurs.
- Difficult driving conditions and road closures could be caused by spray and flooding.
- A small chance of fast flowing or deep floodwater causing danger to life.
What should you do
- Check if your property could be at risk of flooding. If so, consider preparing a flood plan and an emergency flood kit.
- Give yourself the best chance of avoiding delays by checking road conditions if driving, or bus and train timetables, amending your travel plans if necessary.
- People cope better with power cuts when they have prepared for them in advance. It’s easy to do; consider gathering torches and batteries, a mobile phone power pack and other essential items.
- Be prepared for weather warnings to change quickly: when a weather warning is issued, the Met Office recommends staying up to date with the weather forecast in your area.
The Met Office currently predicts this weather warning has a medium likelihood and a low impact.
The following areas of Wales will be affected:
- Blaenau Gwent
- Bridgend
- Caerphilly
- Cardiff
- Carmarthenshire
- Ceredigion
- Denbighshire
- Gwynedd
- Merthyr Tydfil
- Monmouthshire
- Neath Port Talbot
- Newport
- Pembrokeshire
- Powys
- Rhondda Cynon Taf
- Swansea
- Torfaen
- Wrexham
This weather warning comes just a day after the yellow weather warning for snow and ice across South Wakes this weekend was upgraded to amber.
