On the night of February 15th 2020 large areas of RCT were hit by Storm Dennis.
Storm Dennis was a European windstorm which, in February 2020, became one of the most intense extratropical cyclones ever recorded, reaching a minimum central pressure of 920 millibars (27.17 inches of mercury) [https://en.wikipedia.org/wiki/Storm_Dennis]
Across RCT over 1,000 properties were flooded. In the Pontypridd Constituency, residents of Pontypridd, Trefforest and Taffs Well suffered extreme flooding.
The damage was extensive to houses, businesses and transport infrastructure.