The storm caused four deaths in Britain, including a man who jumped into a fast-flowing river to try and rescue his dog. The severe weather also left a 12-year-old boy crushed to death beneath construction materials in Normandy, France.
In Britain, thousands of people trying to get away for the holidays were affected by reduced or cancelled train services due to landslides and fallen trees and flooded roads, Flight delays were triggered by power outages at London Gatwick Airport's North Terminal.
Across the English Channel, nearly all long-haul flights out of Paris' Charles de Gaulle Airport were delayed because of the storm, according to the Paris airport authority website.
Electricity provider ERDF said the winds left nearly 200,000 homes in western France without electricity.
France's Interior Ministry says the 12-year-old boy was killed at a construction site in Saint Germain de Tallevande and another person was seriously injured.
The Energy Networks Association, which represents power companies across the UK, said 150,000 homes were without power, mainly in the south of England.
The Environment Agency issued hundreds of flood warnings across all of England and Wales, with a severe flood warning, the highest level, warning of danger to life, in southwest England.
Two people died in car accidents, and one woman's body was pulled from a river in north Wales.
In Spain, extremely strong winds battered the northwestern Galicia region, and a tree that fell down on rail tracks prompted the derailment of a commuter train. None of the 10 passengers or the crew members were injured.