The Met Office says up to 200mm of rain could fall in parts of Wales and Cumbria over 48 hours, with Swansea, Neath Port Talbot, Carmarthenshire and Pembrokeshire all sitting squarely in the amber zone.
And it’s not the first time. South West Wales has already endured three Amber warnings and five Yellow warnings in the past month alone – a relentless barrage of alerts that’s left roads saturated, rivers swollen and communities braced for more disruption.
The warning kicks in Monday morning, with heavy rain expected to lash the region throughout the day. Roads including the A40, A48, A465 and M4 are likely to be affected, and drivers are being urged to plan ahead.
“A slow-moving weather front stretching into the tropical Atlantic will continue to bring adverse conditions,” said Met Office Chief Meteorologist Paul Gundersen.
The Environment Agency has also sounded the alarm, warning of possible surface water flooding and urging drivers not to take risks.
“Just 30cm of flowing water is enough to float your car,” said Flood Duty Manager Jonathan Day. “Don’t drive through flood water — it’s often deeper than it looks.”
While the south of England stays dry and bright, Wales is once again in the firing line. The amber warning follows a string of recent alerts, with saturated ground and swollen rivers increasing the risk of disruption.
Looking ahead, Tuesday may bring a brief break in the rain — but forecasters say another Atlantic low is already lining up for Wednesday, bringing more wet and windy weather to western Britain.
