Heavy downpours will push east across most areas during Saturday and Sunday, according to the Met Office.

The latest Sky News forecast

Forecasters say some homes and businesses may suffer flooding and travel could be affected by surface water - including bus and train services.

Powers cuts are also likely.

The Met Office said: "An area of persistent and occasionally heavy rain is expected to move from west to east across the warning area during Saturday and Sunday, falling on already saturated ground.

"Rain will clear western areas early Sunday, whilst rate of clearance from east and southeast England is open to some uncertainty, but all areas should become dry by evening."

The Environment Agency, which covers England said: "Land, roads and some properties will flood and there will be travel disruption."

Natural Resources Wales said: "Local flooding from surface water is probable, and local flooding from rivers is also possible, on Saturday and Sunday across Wales.

"Land, roads and some properties could flood and there could be travel disruption."