Natural Resources Wales have issued a flood warning on the River Usk from Brecon to Glangwryne.
The river level at Brecon Promenade at 2.30pm today (Wednesday, December 27) was at 2.8 metres and rising.
In Crickhowell the level was 2.1 metres and rising. Pumps are said to have been deployed to New Road in Crickhowell as a precaution.
In Abergavenny the river level was at 3.2 metres and rising.
More updates likely to follow.