Want the best of The Telegraph direct to your email and WhatsApp? Sign up to our free twice-daily Front Page newsletter and new audio briefings. Homeowners have been told to prepare for flooding as some parts of the UK could be hit with almost a month’s worth of rain on Friday.The Met Office issued weather warnings across the west of the country as they predicted as much as 60mm of rain could fall across Dartmoor, in Devon.The average rainfall for August in England is 69.3mm, meaning almost an entire month’s worth of rain could hit the area in just 24 hours.Yellow weather warnings are in place across much of the west, including Wales where 80mm of rain is expected to fall in parts.The Met Office has warned that transport could be affected and flooding of a few homes and businesses is possible. “But the heaviest and most persistent rain is going to be across the more western parts of the UK particularly hills and slopes that face the west.“We have a warning out for that rainfall and in some very localised areas we could see as much as 80mm of rain, the average rainfall for the UK in August is just under 90mm.”There have been some predictions this August could be the wettest on record, but the Met Office said it is still too early to tell.By the middle of next week the unsettled weather is due to clear, with warm and sunny weather expected for the August Bank Holiday weekend. The heaviest rainfall may coincide with peak travel times during Friday afternoon and early evening, causing difficult driving conditions, it said. The forecasted bad weather follows last week’s unseasonably windy spell, which saw gusts of up to 60mph in the south east.Helen Roberts, a Met Office meteorologist, said: “There is some pretty wet and quite windy weather on the way for Friday, a deep area of low pressure pushing from the Atlantic that is going to bring a spell of rain for all.