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The Met Office has issued an updated yellow rain alert weather warning affecting Wales. While the timeline has been narrowed, a wider area is now affected and rain totals may be higher than initially forecast.
A warning was put in place from 9am on Saturday until 6am on Sunday, September 21. The Met Office alert now runs to 3am on Sunday instead. The warning area has been shifted further south in England and it now covers more areas in Wales.
Only southeast Wales is now excluded from the danger zone. As before, all six counties in North Wales are covered but the rain alert now extends across much of Powys.
The Met Office is also warning that, in worst affected areas, up to 80mm of rain could fall – and this may not just be on the hills. The forecaster added: “There is a small chance of fast flowing or deep floodwater causing danger to life.”
The areas affected now include Bridgend, Carmarthenshire, Ceredigion, Conwy, Denbighshire, Flintshire, Gwynedd, Isle of Anglesey, Merthyr Tydfil, Neath Port Talbot, Pembrokeshire, Powys, Rhondda Cynon Taf, Swansea and Wrexham.
The Met Office said: “A band of rain, heavy at times, across Wales, northern England and southern Scotland is expected to remain slow-moving during Saturday morning before making erratic eastward progress, eventually clearing early on Sunday.
“Whilst there is still some uncertainty in the focus for the heaviest rainfall, 20-30 mm of rain is likely to fall quite widely and there is a chance that 60-80 mm of rain could fall in places.” Sign up now for the latest news on the North Wales Live Whatsapp community
The forecaster continued: “These higher accumulations may not be confined to high ground only. Due to this uncertainty, further changes to the warning area are possible.
“As the area of rain clears east, a spell of strong northwesterly winds may develop later Saturday and Sunday morning, most likely towards North Sea coasts.”
The forecaster warned there was a “small chance” that homes and businesses could be flooded, causing damage to some buildings.
Train and bus services could be delayed or cancelled, and there is a small risk of power cuts. Sign up for the North Wales Live newsletter sent twice daily to your inbox
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