A yellow weather warning for wind and rain has been issued for southern parts of Powys as Storm Ingrid moves across the area.

The Met Office warning comes into force at 2am on Friday and will remain in place for more than 24 hours, until 9am on Saturday.

The entire Swansea Valley is included in the warning area. Although Brecon and Crickhowell are just outside the designated zone, some local routes are affected, including the A470 between Brecon and Merthyr Tydfil.

Forecasters have warned that periods of heavy rain and strong winds could lead to flooding and difficult driving conditions.

A spokesperson for the Met Office said: “Storm Ingrid, named by the Portuguese national weather service IPMA, will bring spells of heavy rain and strong winds across parts of southwest England and south Wales during Friday before easing on Saturday morning.

“An initial band of rain early Friday could bring a further 10-20 mm of rain in places in a few hours, with this falling on already saturated ground. A drier interlude is expected before further bands of locally heavy rain and showers push north into the area through the afternoon, evening and overnight. A further 15-20 mm of rain is expected to fall widely across the region by Saturday morning, with 30-40 mm possible in places. Given the saturated nature of the ground, this is likely to lead to some flooding.”