A fresh thunderstorm warning has been issued prompting fears of flooding, lightning strikes and potential travel chaos.
The Met Office issued the severe weather warning on Sunday afternoon, which covers a large swathe of south west England.
The patch stretches across to the east coast, with Norwich also set to be hit and Peterborough, Cambridge and Milton Keynes affected in between.
It warns of: "Heavy showers and thunderstorms producing flooding and disruption."
The warning is in place until 8pm on Sunday.
There is also a risk of flooding homes, driving conditions being affected, short term power cuts and train delays.
It comes after more than 70mm of rain fell in Cumbria on Saturday as the country was struck by unseasonable heavy rain and strong winds.
The Met Office said the wettest part of the country was Spadeadam where 71.4mm fell on Saturday - compared to a monthly average of 82.4mm for August in the region.
Previously, meteorologist Helen Roberts said: "It does look like remaining unsettled and changeable right through most of the next seven days."
On Saturday, flooded tracks forced train operators to cancel services between Cumbria and Scotland in a day of disruption on the rail network.
Flooding between Penrith and Lockerbie forced operators to suspend services on Saturday afternoon.
Network Rail Scotland tweeted images of the rails about a foot under water and said five trains had been trapped between Lockerbie and Carlisle.
There was also flooding between Blackburn and Clitheroe, causing blockages to the lines on Saturday evening.
On Sunday, police in Cumbria urged drivers to take extra care in the weather conditions and only drive if necessary.
Superintendent Justin Bibby said: "If people do have to make journeys we would ask them to be vigilant as to the road conditions and take care.
"We would ask drivers to leave themselves plenty of time for any journeys and to monitor local radio and websites for any travel information.
"If anybody does need to drive, please be aware of your surroundings, drive to the conditions you face and take care."
Additional reporting by PA.
