High winds and rain are causing havoc with transport, with those intending to travel by road, rail and air all affected.
Rail services ground to a halt in Scotland where numerous roads were shut and where flights at Aberdeen, Edinburgh and Glasgow airports faced delays and cancellations.
In northern England a number of rail services were either axed or delayed, including some on the East Coast main line and others across the Pennines. Leeds Bradford airport warned passengers to expect delays, with some flights from the Yorkshire airport cancelled today.
Network Rail said all sorts of items had been blown on to tracks. A spokesman said: "We've had a trampoline on the line, items of garden furniture, trees and other debris. It's quite extensive."
A 61-year-old man has been taken to Edinburgh Royal Infirmary after being hit by a falling tree. His injuries were not thought to be life-threatening. A tree also fell on a car in the city's Quality Street but no one was hurt.
A woman was taken to Hairmyres Hospital in South Lanarkshire after a tree fell on a taxi in Bothwell Road, Hamilton.
The Southern General Hospital in Glasgow has been affected by the severe wind, with part of the roof around the helipad blown away.
Lorries have been blown over on the M74 at Douglas, South Lanarkshire, and on the A83 at Rest and Be Thankful in Argyll and Bute.
Glasgow Central station had to be evacuated during the morning rush hour after debris smashed glass in the roof. No one was hurt.
Many roads in the Highlands and further south in Scotland were closed due to fallen trees, minor accidents and incidents of flash flooding.
The Kessock Bridge at Inverness was closed to high-sided vehicles, while the Dornoch bridge, Skye bridge, Forth Road Bridge and A898 Erskine Bridge were closed to all traffic.
Services operated by Scottish ferry company Caledonian MacBrayne were affected by the winds.
Roads in the Highlands that were closed included the A82 at Torlundy, the A830 Mallaig road, the A86 Newtonmore to Laggan road and Grant Street in Inverness.
The Scottish Fire and Rescue Service said it was responding to numerous calls relating to fallen trees and road blockages.
At Glasgow airport a number of domestic services were cancelled, including some involving British Airways. BA also had some flights axed at Edinburgh airport where there were also cancellations.
At Aberdeen airport, flights to Wick, Leeds Bradford and London City were among those that had to be cancelled, while at Leeds Bradford passengers were warned to expect delays.
Among Leeds Bradford flights that had to be axed were a Flybe service to Southampton, a BA flight to Heathrow and a KLM flight to Amsterdam.
East Coast, First TransPennine Express and CrossCountry were among the train companies which had to axe some services and run others under amended timetables.
Further south, some services in Kent, Sussex and Surrey were affected by signalling problems, while a lineside fire hit some South West Trains operations in south-west London. There were also delays through Birmingham New Street station.
While the most severe road problems were in Scotland, some major routes in England were snarled up too.
There were delays on the M6 in Cumbria, the M6 in the West Midlands, the M4 in Wiltshire and the M1 in West Yorkshire due to accidents, while a fallen tree affected traffic on the A164 in East Yorkshire.