The Met Office has issued yellow weather warnings for Wales and the south-east of England where it is expected that 20 to 30 mm rainfall will land within six to nine hours causing flooding in some areas.
Met Office meteorologist Alex Burkill said that there is “significant rainfall” in south-east England and that some areas will be “more susceptible” to disruption.
Burkhill said, “The rain was heavy but I think it was that it lasted for quite a long period of time.
“It was quite a big band of rain that slowly moved across the UK. It was less the intensity of the rain but how long it lasted which led to those rainfall totals building up.
“It has come off the back of some unsettled weather as it has not been very dry recently and so river catchments everywhere are quite saturated – that would have made any problems worse.”
The Met Office also said that “some showers (are) likely to be heavy with hail and a chance of thunder.”
Burkill added, “The highest temperatures will be in the South but even in the North it is still going to be mid-to-high single figures so it is not going to be cold but just a bit chillier than it has been.”