It said to expect “very strong and disruptive winds”, with gusts of up to 70mph (112km/hr) in some places around the country.

The yellow warning runs from 03:00 until 15:00 GMT.

Strong winds caused problems on Wednesday around the Welsh coast and inland, with power supplies affected and travel disruptions.

The Met Office has not named the weather event as a storm, but the Portuguese meteorological service has called it Storm Diana.