About 100 homes have been flooded in an area of Staffordshire forcing residents to go to a community centre.
A resident filmed the tornado during a storm
Staffordshire Fire Service has been helping move residents out of Brook End in Fazeley after they were alerted in the early hours of Saturday.
Four fire engines, two Land Rovers and two boats have been in attendance.
Homes in Coventry and Warwickshire are without power, a flood watch remains on the River Severn in Shropshire and a tornado was seen in Hereford on Friday.
Flooding of low-lying land and roads is expected near the Severn Vyrnwy Confluence - where the Severn meets the River Vyrnwy, according to the Environment Agency.
In Warwickshire, the British Red Cross have cancelled a charity event at the Mill Garden in Warwick and a regatta at Stratford Upon Avon Boat Club has also be called off due to flooding.
During a brief thunderstorm in Hereford, resident Paula Symmonds, filmed the tornado near Kings Acre Road.
Some homes in the north of the city lost power in the bad weather.
A spokesman for Staffordshire Fire and rescue Service told BBC News that they believe the River Tame has caused the problems in Fazeley.
They were called at 0330 BST and have help move residents to nearby Mile Oak Community Centre.
Crews are hoping water levels will recede without the need to use pumps over fears of causing flooding problems elsewhere.
Lichfield District Council has information for residents affected by the flooding.
Forecasters are predicting more scattered shower and fire crews are on stand by for more areas of flooding, the spokesman added.