Storm Bert is set to batter much of the UK today with the Met Office issuing a yellow weather warning for heavy rain . The stormy weather will cause some travel disruption and flooding this weekend, particularly across south Wales, according to forecasters. The area of the warning has been extended to cover more of northwest Wales, including Anglesey. The Met Office said: "A deep area of low pressure is expected to bring a spell of prolonged and, at times, heavy rainfall across a large part of