Drivers have been warned to only travel if necessary as severe gales and snow showers bring travel disruption to much of the UK.
Almost all rush-hour trains to London Waterloo, Britain's busiest station, were either cancelled or delayed, and many rail lines across the country were blocked by fallen trees and debris.
A yellow warning for snow and ice has been issued for northern England, Northern Ireland and parts of southern and central Scotland.
Follow the latest updates on the severe weather and travel disruption below
Poor weather conditions are also affecting railways in the Midlands, with overhead electric wires damaged between Wolverhampton and Stafford.
Passengers are being warned to expect delays to and from Manchester Piccadilly, between Birmingham New Street and Crewe, through Birmingham New Street and between Birmingham New Street and Redditch.
On Wednesday, persistent snow and ice caused treacherous driving conditions and brought the M74 in Scotland to a standstill, but Traffic Scotland said there were no significant incidents on the roads for rush hour traffic and traffic on the M74 was "coping well".
During the night, Police Scotland issued a "stage four" warning, advising drivers to avoid travelling on roads in areas covered by amber snow warnings.
This was later downgraded to stage three to warn motorists of a "high risk of disruption" during the morning.