Key Takeaways
- Heavy rain is forecast across the South West on Monday, with Devon expected to be heavily affected
- A Met Office weather warning is in place from 12am on Monday until 3am on Tuesday, with a risk of flooding and disruption
- The heaviest rainfall is expected to occur in two bursts, overnight and on Monday afternoon into the evening
- Dartmoor is forecast to receive up to 80mm of rain, while higher parts of Exmoor could see up to 50mm
- Strong south to southwesterly winds will accompany the rainfall, particularly near English Channel coasts
Introduction to the Weather Forecast
The Met Office has issued a yellow weather warning for the South West, with heavy rain expected to affect the region on Monday. The warning is in place from 12am on Monday until 3am on Tuesday, with a risk of flooding and disruption. The rain is expected to move in from the west late on Sunday evening, becoming widespread across the region early Monday, before clearing to the east on Monday night. The heaviest rainfall is expected to occur in two bursts, overnight and on Monday afternoon into the evening, with Dartmoor forecast to receive up to 80mm of rain.
Regional Weather Forecast
The Met Office has forecast that the South West will experience a soggy day on Monday, with heavy rain affecting the region. Devon is expected to bear the brunt of the rain, with the Met Office warning of flooding and disruption. The rain is expected to be heaviest in the west, with Exmoor forecast to receive up to 50mm of rain. The region can expect 20-30mm of rain to accumulate "quite widely", according to the Met Office. Further afield, South Wales is expected to bear the brunt of the wet weather, with strong south to southwesterly winds accompanying the rainfall, particularly near English Channel coasts.
Hour-by-Hour Forecast
The Met Office has provided an hour-by-hour forecast for several locations in Devon, including Exeter, Plymouth, Paignton, and Barnstaple. In Exeter, heavy rain is expected from 11pm on Sunday until 1am on Monday, and again from 12pm on Monday until 9pm. In Plymouth, heavy rain is expected from 9pm on Sunday until 5am on Monday, and again from 12pm on Monday until 8pm. Paignton can expect heavy rain from 11pm on Sunday until 6am on Monday, and again from 1pm on Monday until 9pm. Barnstaple can expect heavy rain from 10pm on Sunday until 3am on Monday, and again from 12pm on Monday until 8pm.
Met Office Statement
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." Silverstone emphasized the importance of staying up to date with Met Office warnings in the coming days, as the forecast is still developing.
Outlook for the Rest of the Week
The Met Office has forecast that the weather will remain changeable from Tuesday to Thursday, with a mix of scattered showers and sunny spells. Temperatures are expected to be near average, with remaining breezy at times, primarily in coastal regions and over higher ground. The Met Office South West forecast for today (Sunday) is for a chilly start, with rural frost patches possible, and a ridge of high pressure bringing widely fine and dry conditions, though the odd shower remains possible in the west. Tonight, winds are expected to strengthen and conditions turn unsettled overnight as a weather system pushes northeastwards, bringing widespread and prolonged rain, these downpours heaviest in the west and over high ground. On Monday, a dull and damp start is expected for most, as bands of rain continue to push northeastwards, bringing widespread cloud and further outbreaks of heavy rain. Breezy at times, with a maximum temperature of 14 °C.
