Floods: Traffic problems and delays caused by rain
Persistent rain overnight and through the morning led to traffic problems.
A yellow weather warning was issued for Wales by the Met Office until 18:00 BST that also covered north-west England.
Up to 50-100mm (2-4in) of rainfall was likely, with as much as 150-200mm (6-8in) in some places.
Reporting from Hirwaun, in Rhondda Cynon Taf, the BBC’s Stephen Fairclough said the journeys of some drivers had increased from five minutes to an hour.