Video: Britain hit by floods as forecasters warn of more wet weather to come The Met Office is forecasting that up to 100mm (more than three inches) of rain could fall over parts of northern England, the Midlands and north and east Wales over a period of 24 hours, with some areas receiving more than the average for the whole month of September. The overnight heavy rain from Sunday into Monday caused widespread problems in parts of North Somerset, Bristol and South Gloucestershire and the Avon Fire & Rescue Service said it had received a large number of calls after 5am on Monday from householders reporting difficulties. On Sunday, a woman was killed by a falling tree branch in strong winds at Kew Gardens in London.