The Met Office has issued a ‘Yellow’ weather warning which covers the East and South Devon and has warned flooding is possible – with almost a third of a month’s rain potentially falling in a matter of hours.

While the warning doesn’t extend down to Cornwall, the county is still set to see some substantial rainfall tomorrow morning. The Met Office’s hour-by-hour forecasts show heavy rain arriving across Cornwall – from Land’s End to Looe – from 7am on Wednesday morning, with no let-up until lunchtime.

On Twitter Devon County Council’s Highways and Emergency Planning Alerts account has urged road users to drive carefully, with East Devon expected to be the worst affected area.

At 6.30am, The Met Office’s live weather radar showed pockets and bands of heavy rain pushing up from the south, as Storm Barbara pushes in from Europe.

Traffic cameras show there is very poor visibility on parts of the A38 and A30, while the M5 is looking very wet around Exeter.