A series of flood alerts have been triggered as parts of the UK record more than a month’s rainfall in 26 hours. Six Met Office weather warnings were in place on Saturday morning, covering mostly western areas ranging from Scotland to Plymouth. The threat was highest in south Wales, where an amber warning was issued at 8pm on Friday until 6pm on Saturday, with heavy rainfall likely to cause disruption to transport and power cuts, and a “good chance some communities [may be] cut off by flooded roads”. According to Marco Petagna, a senior meteorologist with the Met Office, 127.6mm of rain fell at Llyn-y-Fan, Carmarthenshire, in south Wales, between 6am on Friday and 8am on Saturday. Treherbert, in Mid-Glamorgan, saw 115mm. This is more than the average rainfall for the whole of February in south Wales, which stands at 98mm. Up to 200mm could fall on south Wales in total, Petagna said. In Cumbria’s Honister Pass, 112mm fell in the same period, matching the February average for the region. The heavy rainfall caused disrupted to railways, with National Rail reporting issues on its networks in Wales and south-west England due to flooding on Saturday morning. Petagna said 30 to 70mm was forecast to fall in areas covered by the less severe yellow warnings, with all warnings expected to be adjusted to end on Saturday night. However, he warned that parts of Dartmoor could potentially record up to 150mm rainfall. In England, 11 flood warnings were in force on Saturday morning, meaning that flooding is expected and immediate action is required, in parts of Yorkshire and the south-west. A further 98 locations have been warned that flooding is possible. Natural Resources Wales had 24 severe flood warnings in place across the country, advising immediate action against the rainfall, with a further 41 flood alerts.Scotland saw 10 flood alerts centring on the Scottish Borders and Tayside, reporting “risk of flooding to individual properties, low lying land and roads from rivers and surface water”, and 34 flood warnings. Petagna said the east of the country would have a much quieter weekend, with mild temperatures up to 16C (61F) in the south-east, but with light and patchy rain on Sunday. However, he warned that after a brief break in the rain, there was more wet weather due next week. “There’s more rain to come going into next week,” he said. “There will be some respite Sunday and Monday but going into Tuesday there’s some more rainfall. “Again the west and north-west could see further rain developing.”