The Met Office has issued a weather warning for north, mid, and west Wales from 04:00 to 18:00 GMT. The warning covers areas including Anglesey, Gwynedd, Conwy, Denbighshire, Flintshire, Wrexham, Powys, Ceredigion, Carmarthenshire, and Pembrokeshire.
The forecaster has indicated uncertainty about the specific areas Storm Debi might affect as it moves westerly from the Irish Sea coast. There is a warning of potential "injuries and danger to life" due to the high wind speeds. This weather event follows recent Storms Babet and Ciaran, which caused flooding in several Welsh communities.