By Benedict Tetzlaff-Deas More wet weather is coming this weekend after two threatening storm clouds appeared on new forecast maps. The models from WXCharts show a large front of heavy rain beginning to cover the entire length of the mainland UK late this evening, stretching from Cornwall up to the northern tip of Scotland. Torrential downpours of 9mm per hour could be falling in south Wales and southwest England towards midnight, while areas in the far north could see snow instead. After clearing to the eastern coast on Sunday morning, a second stormy weather front will then move in throughou…