HEAVY rain showers, possibly thundery, are heading to Pembrokeshire overnight.

The MET Office has issued a yellow weather warning for rain later today (Saturday) into the early hours of the morning.

"Localised surface water flooding on roads my make journey times longer. Flooding of a few homes and businesses is possible," warn the MET Office.

Some areas within the yellow warning area, which includes south Wales and the west of England, could see around 15mm of rain in less than an hour and up to 30mm in two or three hours.

It is expected to have cleared by Sunday morning.