In Northern Ireland 7,000 electricity customers lost power as strong winds wreaked havoc with the supply network. Engineers managed to get 5,000 back on the grid, but by 10pm were still working to restore supply to the remaining 2,000.
Northern Ireland Electricity said it had responded to around 200 incidents of damage to the network in northern and eastern areas of the region.
Damage included trees coming down across powerlines and broken electricity poles.
Julia Carson, NIE communications manager, said some customers could be without power throughout the night as it was too dangerous to carry out certain repairs while storms raged.
The Environment Agency has 26 flood warnings in place in England and Wales, with flooding expected and immediate action required.
Warnings were concentrated across the South West, Wales and the North West.
There were also 114 flood alerts, with flooding possible and the public told to "be prepared" throughout the rest of the country. Police closed the A595 at Moota in Cumbria after the roof was blown off a hotel, with motorists asked to avoid the area.
A roof blew off another property in Seaton and disruption due to trees blocking roads was reported in Whitehaven and Hackthorpe. There were also delays for train passengers across parts of the South West.
South West Trains reported problems due to trees on the track near Sherborne in Dorset and on a train between Exeter and Axeminster in Devon.