More than 20 flood alerts are in place across a stretch of south and south-west Wales including Cardiff, Swansea, Bridgend, Port Talbot, Neath and Llanelli. Natural Resources Wales has issued the alerts, meaning flooding is possible, and one more acute flood warning, following a yellow Met Office alert for a period of heavy rain overnight.

One flood warning is in place, meaning flooding is expected and immediate action required, for the River Hydfron at Llanddowror in Carmarthenshire. NRW issued the warning at 3.30am, saying river levels were expected to rise until at least 6.30am; at the time of writing the warning is still in place. For the latest Welsh news delivered to your inbox sign up to our newsletter.

Of the 24 flood alerts (less severe, meaning flooding is possible and to be prepared) 22 are in the south and south-west of Wales. A number are in Pembrokeshire and Carmarthenshire, including for rivers across north, south and west Pembrokeshire - where flooding of low-lying land and roads is expected, especially around the River Ritec - and in Llanelli.

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But alerts are also in place for the River Wye in Powys and across south Wales for specific rivers: the rivers Tawe, Nant-Y-Fendrod and Nant Bran in Swansea, the River Neath, the Rivers Afan and Kenfig in Port Talbot, the Rivers Llynfi and Ogmore in Bridgend and the River Ely in Cardiff. Join our WhatsApp news community here for the latest breaking news.

Only one alert has been issued for north Wales, for the areas around the river Glaslyn and river Dwyryd, from Dyffryn Ardudwy to Nant Gwynant in Gwynedd. This is the full list of alerts (and one warning) in place at the time of writing:

  • [Warning] River Hydfron at Llanddowror

  • River Wye in Powys

  • South Pembrokeshire

  • North and west Pembrokeshire

  • Eastern Cleddau

  • Upper Towy

  • Lower Towy

  • River Cothi

  • Rivers in Llanelli

  • River Thaw

  • River Cadoxton

  • Western Cleddau

  • Glaslyn and Dwyryd Catchment

  • Rivers Bran and Gwydderig

  • Rivers Taf and Cynin

  • River Ely

  • Rivers Nant-Y-Fendrod and Nant Bran

  • Upper Tawe

  • Lower Tawe

  • River Ewenny and Vale of Glamorgan west

  • Rivers Loughor and Amman

  • Rivers Gwendraeths

  • Rivers Llynfi and Ogmore

  • Rivers Afan and Kenfig

  • River Neath

A map of Wales with orange and red triangles delineating alerts and a warning in the places described in the article, with orange lines showing the actual rivers affected
These were the alerts (and one warning) in place at 8.45am

Some of the alerts are causing significant travel disruption, including near the River Ely. You can view a full map of flood alerts and warnings on NRW's website.

To report flooding or hear current flood warnings in force you can call NRW's 24-hour Floodline service on 0345 988 1188, or for type talk call 0345 602 6340. You can also check your flood risk by postcode here.