Bristol is set for a day of rain on Monday (December 1) with a Met Office severe weather warning in place.
Non-stop rain is forecast with the risk of disruption and flooding with the 27-hour alert in place from 12am on Monday through to 3am on Tuesday.
The localised Met Office forecast for Bristol has light rain starting at 10pm today (Sunday) becoming heavy from 11pm through to 6am tomorrow.
More light rain is then due until 5pm when heavy rain lashes down until 10pm. Light rain is then set to last until 4am on Tuesday.
It comes as a more severe amber warning is issued for South Wales for the whole of Monday, the warning zone covering parts of the Bristol Channel.
An Amber warning is in place for South Wales on Monday -Credit:Met Office
Met Office Deputy Chief Forecaster Mike Silverstone said: “Heavy rain will move over south Wales from late Sunday and through Monday.
“Whilst rainfall amounts will vary, the largest accumulations are expected over the highest ground in south Wales and could reach 100-120mm through the day. 60-80mm is most likely for many hills within the Amber warning area, while those to lower levels should see around 20-40mm through the day.
“Wider yellow warnings for rain have also been issued for the southwest and northwest of England, as well as central and northern parts of Wales with disruption also possible in these areas through the day.
“This is a developing forecast, so it’s important to stay up to date with Met Office warnings in the coming days.”
Warnings highlight potential flooding, travel disruption and the possibility of power cuts for some, the Met Office says. Within the Amber warning area, fast flowing or deep floodwater is possible, which may cause a danger to life, it adds.
Yellow severe weather warning
Met Office warning for Monday
Runs from 12am Monday to 3am Tuesday. Heavy rain could bring some disruption during Monday.
What should I expect?
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Where flooding occurs, there is a slight chance of delays or cancellations to train and bus services
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Spray and flooding could lead to difficult driving conditions and some road closures
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There is a slight chance of power cuts and loss of other services to some homes and businesses
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There is a small chance that some communities will become cut off by flooded roads
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There is a small chance that homes and businesses could be flooded, causing damage to some buildings
The Met Office adds: “An area of heavy rain will move in from the west late on Sunday evening, becoming widespread across the region early Monday, before clearing to the east Monday night.
“Rainfall accumulations will vary across the region, but 20-30 mm of rain may accumulate quite widely.
“As much as 60-80 mm of rain could build up across the high ground of Dartmoor, and perhaps 40-50 mm of rain could accumulate across the higher parts of Exmoor, Dorset, the Mendips and Cotswolds.
“Strong south to southwesterly winds will accompany the rainfall, particularly near English Channel coasts.”
Met Office South West forecast
Today: A chilly start, with rural frost patches possible. A ridge of high pressure brings widely fine and dry conditions, though the odd shower remains possible in the west. Becoming increasingly cloudy from the west through the afternoon. Light winds. Maximum temperature 11 °C.
Tonight: Winds strengthening and conditions turning unsettled overnight as a weather system pushes northeastwards, bringing widespread and prolonged rain, these downpours heaviest in the west and over high ground. Feeling mild. Minimum temperature 8 °C.
Monday: A dull and damp start for most, as bands of rain continue to push northeastwards, bringing widespread cloud and further outbreaks of heavy rain. Breezy at times. Maximum temperature 14 °C.
Outlook for Tuesday to Thursday: Changeable conditions continue from Tuesday, with a mix of scattered showers and sunny spells. Temperatures near average. Remaining breezy at times, primarily in coastal regions and over higher ground.