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Wales weather: Heavy rain brings flooding risk Wales weather: Heavy rain brings flooding risk
(about 9 hours later)
Parts of Wales are being battered by heavy rain as storms bring a risk of flash flooding. Parts of Wales have been hit by heavy rain as storms brought a risk of flash flooding.
A Met Office yellow "be aware" warning of rain has been issued for all counties except Pembrokeshire until 23:45 BST on Saturday. A Met Office yellow "be aware" warning of rain is in place for all counties except Pembrokeshire until 23:45 BST on Saturday.
Thunder and lightning hit large areas of Wales overnight while heavier rain is forecast later in the morning. Thunder and lightning hit large areas of Wales overnight while downpours were also forecast later.
Southern counties will be most at risk at first before the storms move north during the afternoon. The storms were expected to move north during the afternoon.
The Met Office said: "It is likely that many places within the current broad warning area will miss the worst of the storms.The Met Office said: "It is likely that many places within the current broad warning area will miss the worst of the storms.
"But where they occur they could produce in excess of 20mm of rain in an hour, with one or two places seeing more than 40mm within two or three hours, with localised flooding a possibility.""But where they occur they could produce in excess of 20mm of rain in an hour, with one or two places seeing more than 40mm within two or three hours, with localised flooding a possibility."
The Met Office said there was the potential for localised flooding "due to the intensity of the downpours" but it was uncertain where the heaviest rain was likely to fall.The Met Office said there was the potential for localised flooding "due to the intensity of the downpours" but it was uncertain where the heaviest rain was likely to fall.
Natural Resources Wales has asked people to be alert for torrential downpours which could flood roads, drains, ditches and small streams.Natural Resources Wales has asked people to be alert for torrential downpours which could flood roads, drains, ditches and small streams.
Officials said flood alerts and warnings could be triggered on smaller, faster responding rivers but did not expect large, slower responding rivers to be affected.Officials said flood alerts and warnings could be triggered on smaller, faster responding rivers but did not expect large, slower responding rivers to be affected.