Rain and gales leave 900 Aberdulais homes without power 18 December 2013 Last updated at 20:23 Around 900 homes in the Neath Valley are without power after a main electrical cable came down in gale-force winds across south Wales. Western Power Distribution engineers are trying to restore power to the homes in Aberdulais. South Wales fires Service said it has been "inundated" and Dyfed-Powys Police has had "hundreds" of calls about localised flooding and fallen trees. The Met Office issued a yellow warning, of winds up to 70 mph (113km/h). Natural Resources Wales (NRW) has two flood warnings in place and says south Gwynedd, Carmarthenshire, and Ceredigion could be worst affected as more rain is expected in coming days. Snow is also possible on higher ground. The Met Office said the worst gusts are likely to be experienced in exposed coastal areas. South Wales Police said a fallen tree has blocked Llantwit Road in Treforest, and there are two trees down on the B4242 Cadoxton to Resolven road. Cemetery Road in Aberdare has been described by police as "like a river" and heavily flooded. The fire service say it is in process of requesting sandbags for Merthyr, Rhymney, Aberdare, Treorchy, and Maesteg areas. Treacherous Steve Cook, flood strategy manager at NRW, told BBC Wales: "There is going to be persistent heavy rain coming through today and that's going to cause localised flooding particularly of roads, which is going to make travelling quite treacherous particularly with the high winds." He said with water flowing into rivers, levels would rise which trigger flood alerts and warnings. He added: "With the leaves coming off the trees, particularly blown by the high winds, it does mean that there is that potential for surface water flooding the drains. We also want people to be aware of coastal flooding. Flood warnings have been issued for the tidal areas at Dale and Pendine in Carmarthenshire. NRW has also issued seven flood alerts, stretching from Swansea Bay to the north Wales coast, which was badly hit by strong winds and a storm surge during high tides two weeks ago. Elsewhere, the Scottish Environment Protection Agency (Sepa) has issued multiple flood warnings as the country prepares for high winds and rain. The warnings, indicating "flooding is expected, immediate action required," cover parts of Argyll and Bute, Ayrshire and Arran, west central Scotland and Tayside. An amber warning of severe gales has been issued by the Met Office for the Highlands and Strathclyde, as well as Northern Ireland.