Roads and rail services have been affected as heavy rain fell across most of Wales and parts of England.
A mother and child had to be rescued from a trapped car by firefighters, after it became stuck in flood water at Garthmyl near Montgomery in Powys.
Up to 3in (80 mm) of rain was expected in south- east and south-west Wales, according to a Met Officeweather warning.
Rail services, including the Cambrian and
Transport for Wales (TfW) advised rail travelers tocheck journeys before traveling.
Flooding has led to numerous line closures, including between Shrewsbury and Welshpool, Crewe and Hereford. Bus replacements were being organized.
Services were also hit between Chester and both Liverpool and Manchester.
Meanwhile,there was flash flooding across Shropshireaffecting some homes.
Several trunk roads and minor road in Blaenau Gwent, Caerphilly, Ceredigion, Monmouthshire, Powys and Wrexham have been shut.
In Builth Wells, Powys, the A 483 has been closed northbound at Broadway, with Stagecoach Wales warning it is unable to use the town’s bus station.
The A 469 between Ystrad Mynach and Llanbradach is blocked in both directions by flood water, while highways officials closed the A 4048 at Troedrhiw, Blaenau Gwent at about 14: 00 BST.
The A 465 has also been shut at Llangua, Monmouthshire, heading towards the A 40 Hardwick roundabout at Coldbrook.
Dyfed-Powys Police has urged motorists only to make “urgent journeys” in flood affected areas, including around Montgomeryshire, after a mother and child needed help on the A 483 when their vehicle became stuck.
“Do not take unnecessary risks,” warned Dyfed-Powys officers.
TfW and Network Rail said they would monitor the situation and provide extra staff and buses where needed.
North Wales Police said the A 525 Marchwiel near Wrexham was closed due to flooding between the junction for the A 528 and the Cross Lanes roundabout. A vehicle also overturned on the A 494 near Ruthin, Denbighshire.
In Nottinghamshire, three people were rescued by the fire and rescue service from a flooded car at Rufford Ford. Nottingham Forest’s home match with Reading in the Championship was amongpostponements because of waterlogged pitches.
Temporary traffic lights are in place on the A 44 at Lovesgrove, Aberystwyth, after the river burst its banks, according toTraffic Wales.
And the A 487 road has flooded at Blaenplwyf, near Aberystwyth, and the A 483 at Abermule, near Newtown in Powys, which is said to be passable with care.