A military helicopter was deployed after a river burst its banks and hundreds of rail passengers were stranded because of a landslide caused by heavy rains.
A Royal Air Force Chinook was drafted in the town of Wainfleet in Lincolnshire to drop sand to try and stop the flow of water after the River Steeping experienced a breach.
About 70 properties were hit by flooding, but authorities warned up to 720 could be affected after as the area had more than two months of rain in just two days.
Homes are expected to be without power until Friday afternoon and some 17 flood warnings and 56 flood alerts have been issued by the Environment Agency.
And flooding around Thorpe Culvert, Lincolnshire, has disrupted the East Midlands Trains route between Boston and Skegness.
The operator said services will be unable to run between the two stations until at least Tuesday.
Elsewhere, a landslip near Corby, Northamptonshire, stopped an East Midlands Train from London to Nottingham – and then a second train that had come to help also became stuck.
Around 400 passengers were stranded for up to eight hours before being evacuated and one person was treated at the scene in an ambulance by paramedics.
The train operator apologised to customers involved, calling it a “challenging situation” due to rubble and serious flooding hampering rescue efforts.
Some East Midlands Trains routes were still affected on Friday morning with National Rail engineers on site to clear the line.
The Met Office has warned of more wet weather to come and said the UK is in for an unsettled weekend with sunshine and showers and thundery outbreaks in places.
But conditions are expected to be drier with some sunshine by the middle of next week.