An update from the Maritime and Coastguard Agency says that 10 people have been injured, and that most are showing signs of hypothermia.
The statement continued: "It's believed that all those in the water have been accounted for. However rescue units on scene, including the helicopters and lifeboats, are carrying out further searches to make sure."
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A 51-year-old Everton fan has died after collapsing during his team's match against Stoke City.
Intense and thundery weather will continue to extend to many places before the end of the day.
Early leaders Morecambe came from two goals down to claim a 3-2 victory at Accrington.