Storm Jocelyn has been moving across the UK - days after Storm Isha hit and left at least two people dead.
Tuesday was marked by heavy rain in parts, with strong gusts across much of the country on Wednesday morning.
The strongest gust so far, 97mph, was recorded in Capel Curig, north Wales, while in Scotland trains stopped running on Tuesday evening.
Thousands of homes remain without power in parts of the UK, while transport is still disrupted in some areas.
It has been a particularly stormy autumn and winter, and Storm Jocelyn is the 10th named storm of the season.
The storms have mainly been driven by a powerful jet stream - fast-moving winds high in the atmosphere - crossing the Atlantic, although global phenomena such as the El Niño event also have an impact.
While Jocelyn will continue to move away from the UK during Wednesday, strong to gale-force winds will still affect many northern areas, especially through the morning - winds will only gradually ease off through the day.
The Met Office has issued warnings for wind covering much of the country until Wednesday afternoon. These are:
A yellow warning for wind across the whole of Scotland, Northern Ireland and northern Wales and north-west England until 13:00 on Wednesday
A yellow warning for wind for south Wales, the Midlands and north-east England from 12:00 on Tuesday until 15:00 on Wednesday
Northern and western Scotland were covered by a Met Office amber wind warning until 08:00 on Wednesday.
Elsewhere, a search involving coastguard crews, a helicopter and RNLI lifeboats, for a person reported to be in the sea at Porthcawl, south Wales, was suspended early on Wednesday.
The coastguard said the incident would be reviewed again later.
Both Isha and Jocelyn have disrupted the journeys of many road, rail and air travellers.
Suspended ScotRail trains will not restart until later on Wednesday morning, or into the afternoon, the operator said.
Phil Campbell, ScotRail's customer operations director, said the company was aware of some damage overnight and that the picture would become clearer as inspections were carried out in daylight.
The train company said each route would need to undergo a safety inspection before trains are able to run due to the risk of trees and other debris falling onto the track.
TransPennine Express, which runs services between northern England and Scotland, is advising customers not to travel until noon on Wednesday on its Preston to Glasgow and Preston to Edinburgh routes.
Avanti West Coast said its services to and from Scotland would be cancelled until at least midday on Wednesday.
The storm also caused "major disruption" on Northern Ireland's road network, an official said, and the main road to Belfast International Airport remained closed on Wednesday. The QE2 bridge at the Dartford Crossing on London's M25 also shut on Wednesday due to strong wind, but has since reopened.
In Northern Ireland, power has been restored to 50,000 homes, impacted by Storm Isha, leaving 3,000 customers without electricity, according to NIE Networks.
Elsewhere in the UK, Electricity North West said power has been restored to 96% of customers affected by Storm Isha.
In northern Scotland, Scottish and Southern Electricity Networks said that as of 08:00 on Wednesday supplies had been restored to 2,200 customers in the north of Scotland, with just under 2,400 properties currently without.
As of 09:45 on Wednesday there are also 27 flood warnings in place across Scotland as well as 19 in England.
In York, parts of the city have flooded with water levels on the River Ouse already very high, and set to rise further.
Meanwhile, a man who died after the car he was in hit a fallen tree in Scotland during Storm Isha on Sunday has been named as James "Jimmy" Johnstone, 84, from Grangemouth, Stirlingshire. His family described him as a "much loved and well respected family man".
Motorists are being urged to reconsider making journeys where the weather is expected to be the worst, including western and southern Scotland and north-west England.
"With so much heavy rainfall and debris on the roads, driving conditions will be very challenging," RAC spokeswoman Alice Simpson said.
"We also suggest drivers avoid parking underneath or near to trees," she added.
