Powys resident have been dealing with flash flooding after parts of Wales had over half a month’s worth of rain in a few hours.

Residents between Rhayader and Llangurig were caught off guard as the Wye went into flood rapidly after river levels rose metres in just a few hours, this morning (September 19) – leaving some roads impassable.

The gauge at the Elan Valley showed a rise of over three metres in just six hours before quickly receding again by this afternoon.

Residents in the area warned on social media “Anybody thinking on travelling the back road from Llangurig to Rhayder shouldn’t even think about it, can’t see where’s the river or the road.”


There have also been flood alerts issued for the River Dyfi, with Natural Resources Wales warning  that “flooding of low-lying land and roads is expected. Flooding is possible for the A487 north of Machynlleth.

"Property flooding is not expected at this time, although some localised flooding problems may result from surface water. We will continue to monitor the situation.”

The rising waters came after a large amount of rainfall falling since midnight especially in the northern half of Wales, equating to half a month’s worth in some areas.

According to information released by the Met Office on social media Aberllefenni on the Powys border has received 52mm of rain since midnight alone.

According to the Met Office, rain is expected to ease going forward into the next few days.