The Environment Agency said uplands and areas that experienced heavy rain earlier this week were more at risk and it had teams checking flood defences, clearing river blockages and monitoring river levels.

BBC: Injured crewman airlifted in storms off Isles of Scilly

"At this time, we are currently monitoring the river, but it is too early to know if additional gates will be opened today, " Boyett wrote in an e-mail to CNN.

CNN: STORY HIGHLIGHTS