About 13,000 homes without power as Storm Imogen brings rain and winds of up to 96mph to parts of southern Britain.
Storm Imogen, the ninth major storm to hit Britain this winter, has caused disruption to travel on roads, rail and ferries.
The Met Office has issued an amber severe warning for wind for South Wales and south-west and southern England, meaning be prepared for coastal areas seeing giant waves and localised flooding.
On the Cornish Coast, waves of up to 19.1M (63ft) have been measured with winds of 70-80mph in many areas.
Weather forecaster Peter Sloss said there had not been winds so strong across such a wide area of southern Britain since the winter of 2013-14.
Forecaster Craig Snell said: “We have issued a broad yellow warning of wind that encompasses Cardiff, Bristol and into the Thames estuary. There is an amber warning for wind mainly focused on Devon and Cornwall but stretching into central England on Monday morning.
“This means people should be prepared for disruption to travel on roads, rail, bridges and ferries and we could see possible damage to structures and downed trees risk affecting power. The wind will be combined with some hefty showers with some thunder along the south coast.”
Some cross-channel ferries have been cancelled, with South West Trains saying they “may require the train line to make adjustments to trains in certain areas.
“In particular, the first trains to run over tracks may need to be cancelled to allow us to ensure these routes are clear and safe to run passenger services,” the statement read. “There may also be changes in the number of carriages to some services.”
Drivers are being urged to take extra care.
The Environment Agency has more than 50 flood warnings in place in England and Wales, meaning flooding is expected and immediate action is required.
There are more than 170 flood alerts, meaning flooding is possible.