Firefighters have been called out to 155 incidents across the county following torrential downpours.
Towns and villages affected by flash floods included Caistor, Digby, Grantham, Horncastle, Ingoldmells, Louth, Metheringham, Ruskington, Skegness, Sleaford, Spilsby and Woodhall Spa.
Lincolnshire Fire & Rescue helped residents with water pumping, salvaging property and safety advice between about 1pm on Thursday and earlier this morning.
David Powell, head of the joint emergency management service in Lincolnshire, said: “Yesterday, we dealt with an extraordinarily unusual amount of rainfall, which affected large areas of the county.
"The extreme weather conditions resulted in several incidents including flash floods, a tornado, traffic accidents and road closures.
“Teams from a number of organisations, including the district and county councils, Environment Agency, Anglian Water, drainage boards, fire and rescue, and police worked throughout the night – and are still out now – to support the affected communities, which is our top priority.
"Our other priority is to reassess all areas affected in the county to ensure all flood courses are tackled and any damage is repaired. Anyone who needs help and advice should contact their local council.
“Currently, emergency services are dealing with on-going flooding in Digby. Some residents are suffering from flood water in their homes. We have fire appliances at the scene and there is a co-ordinated agency response.
“In areas of localised flooding we are working with district colleagues, local councils and other agencies to put people back into communities for the clean-up operation to help those affected in East Lindsey and North Kesteven where the worst affected areas appear to be Digby, Timberland and Ruskington. Woodhall Spa, Leasingham, Horncastle and Louth were also affected.
There was also a mudslide in Belchford which closed roads but has been cleared by the highways team.
“Yesterday’s flash floods happened at the tail-end of the county’s Olympic Torch Relay celebrations and there was a massive effort from all, including local residents, to help tackle affected areas."
“Thankfully nobody was seriously injured, but we recognise the on-going impact on those affected by these events. We are also working hard to repair damage and investigate the events so that we can do as much as we can to prevent future flooding.
“We continue to monitor both the weather and the county’s rivers so that we can respond quickly to any further incidents.”
The storm before the Olympic Torch arrived in Grantham, posted by ThePrincessTatty