Gale force winds have left 1,700 homes and businesses without power, mainly in the west of the country.
A tree also came down on a double-decker bus in Poole, Dorset, smashing through its roof and windows. Part of a doubledecker bus in Poole, Dorset, was crushed by a felled trunk and a road in south Belfast was closed when a number of branches fell on the bonnet of a auto.
The Met Office issued a number of weather warnings for floods and strong winds on Saturday, as Storm Erik brought gusts of nearly 70mph that caused disruption on several roads, with emergency services warning motorists to take care.
Shoppers courageous the strong winds and rain near St Paul's cathedral in central London.
The strongest winds were likely to be on exposed coasts.
The Met Office said strong westerly winds can be expected throughout the county for much of Saturday morning and afternoon.
Storm Erik has lashed the United Kingdom with 112 kilometre per hour winds.More news: Ole Gunnar Solskjaer makes Premier League title claim after win over Fulham
More news: Jill Abramson admits new book has sloppy citations amid plagiarism claims
More news: Sen. Warren's expected 2020 bid banking on populist appeal
Highways England said the A20 near Dover remains closed while a CCTV mast that had been seen swaying in the wind above the carriageway is repaired.
Winds of up to 70mph are predicted for across the country, with the North of England set to be hit particularly hard.
High winds closed the coastal route between Kilwinning, Ardrossan and Largs, and part of the West Highland line between Craigendoran and Helensburgh.
Mr Keates also added that when the skies do clear temperatures will fall below freezing with temperatures in Scotland being the coldest in the United Kingdom with widespread frost expected. A Cumbrian village, Shap, was expected to see the highest rainfall, of more than 5cm.
The blustery conditions are expected to die down later this weekend but further hard conditions are forecast.
Forecasters have said there are expected to be showers in the south today following the downpour overnight, but as the day moves on the rain will be replaced by sunny spells.
'A clear bright start for Northern Ireland and northern England, we do have showers making their way across Wales and the rain from last night is covering up much of south-eastern England, so a pretty grey and damp start for many of us here.