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Warning 1 of 2
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Further details
Outbreaks of rain arriving from the west during Tuesday morning will become heavy and persistent at times, especially but not exclusively over south facing hills, and accompanied by increasingly strong southerly winds.
30-50 mm of rain is likely fairly widely, with 60-80 mm of rain building up in the wettest spots over south facing hills. Much of this could come in heavy bursts during Tuesday afternoon and early evening. Although likely fading fairly by late Tuesday night, rainfall could resume early Wednesday, although details become increasingly low confidence. This warning may be extended tomorrow or a fresh warning issued for Wednesday morning should confidence in a wetter scenario increase.
Given recent wet weather, and saturated ground in places, this could lead to some flooding in places. Difficult travelling conditions for the evening commute are also expected, with delays and the increased possibility of accidents.
Wales
- Blaenau Gwent
- Bridgend
- Caerphilly
- Cardiff
- Carmarthenshire
- Ceredigion
- Merthyr Tydfil
- Monmouthshire
- Neath Port Talbot
- Newport
- Pembrokeshire
- Powys
- Rhondda Cynon Taf
- Swansea
- Torfaen
- Vale of Glamorgan
Issued:
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Warning 2 of 2
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Further details
After heavy rain on Tuesday, conditions will improve briefly into Wednesday. However, another spell of persistent and sometimes heavy rain is expected to move in from the south on Wednesday morning. It’s uncertain exactly where the heaviest rain will fall, so confidence is low about the highest totals in specific places within the warning area.
Despite this, there is a good chance of 20-30 mm of rain falling quite widely, over a 12-15 hour period, and some exposed locations, most likely on south facing hills, could see 40-50 mm or rain. With widely wet antecedent conditions there is an increased risk of flooding in some areas.
Wales
- Blaenau Gwent
- Bridgend
- Caerphilly
- Cardiff
- Carmarthenshire
- Merthyr Tydfil
- Monmouthshire
- Neath Port Talbot
- Newport
- Powys
- Rhondda Cynon Taf
- Swansea
- Torfaen
- Vale of Glamorgan
Issued: