Mark Davies was one of the eyewitnesses, as water cascaded over the wall of a car park after debris blocked a culvert.
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The St David Awards took place in the Senedd this evening to acknowledge the extraordinary achievements of people in or from Wales.
Gareth Bale has become Wales' record goalscorer with a hat-trick in their 6-0 China Cup win over tChina. Here's a look at his best so far...
A wet and windy night, but turning drier by the early hours!