Heavy snow and extreme cold temperatures will cause even more travel chaos for the country tomorrow.
Bus and train companies have cancelled thousands of services and roads will remain treacherous as blizzards continue overnight.
Airports in Scotland remain closed and hundreds of passengers face further misery on Friday.
The Met Office has issued a red warning for snow for just the third time ever – the second one this week – amid unprecedented conditions in recent memory.
Parts of the UK could see blizzard conditions and as much as 50cm (20ins) of snow by Friday morning, with early March temperatures plunging to their coldest values since 1991.
Storm Emma, which rolled in from the Atlantic, clashed with the “Beast from the East”, a polar blast from Siberia that has lingered for four days.
With much of the country grinding to a halt due to severe travel disruption, here are the transport cancellations and problems in your area.
Southeastern is running a modified timetable on Thursday, Friday and Saturday.
There is a reduced service on most lines, some stations closers, changes to train times and last minute cancellations.
The company is advising anyone who can work from home to do so until next week and said people should postpone journeys if possible.
The Medway Valley Line and Sheerness Line are likely to remain suspended.
Southeastern’s emergency timetable can be downloaded here.
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There have been multiple issues affecting the South Western Railway on Thursday and the problems are certain to continue on Friday.
The Met Office has issued a “red” weather warning for Exeter and the surrounding area.
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South Western has advised anyone travelling between Basingstoke, Exeter, Salisbury to get on a train as early as possible and to avoid travel on Friday.
Tickets for today and Friday will still be valid over the weekend. The company has a live journey checker tool on its website here.
Great Anglia has advised passengers avoid travelling unless ‘absolutely necessary’.
The Norwich to Sheringham, Norwich to Great Yarmouth, Norwich to Lowestoft, Ipswich to Lowestoft, Ipswich to Felixstowe, Stratford to Tottenham Hale and Manningtree to Harwich Town lines are closed.
The intercity service between Norwich and London will continue to operate on an hourly basis for the rest of the day.
The ongoing delays and disruption are likely to continue throughout Friday evening.
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The route between Carlisle and Scotland remains closed with no trains, or replacement buses, running.
Network Rail has been unable to clear the route, and trains will not be running between Carlisle and Scotland for the rest of Thursday.
It is uncleaif the route will be open tomorrow and customers are advised to check the Virgin website in the morning for details of trains before going to the station.
There are also significant delays and cancellations on other lines. To check if you Virgin train is running click here .
Glasgow and Edinburgh Airports are shut and are likely to remain closed until at least tomorrow morning.
Some passengers are planning to stay a second night in Glasgow Airport in the hope of finally getting away on their travels on Friday.
British Airways cancelled 91 flights across the UK on Thursday, with the majority at Heathrow.
A British Airways spokesman advised those flying tomorrow to check its website before arriving at the airport.
With weather warnings for snow and ice covering most of the country, driving will remain difficult for hundreds of thousands of commuters tomorrow.
The red snow warning issued for Wales and south-west England, valid until 2am on Friday, is just the third issued in seven years.
It means “widespread damage, travel and power disruption and risk to life is likely”, with concerns some rural communities could be cut off for days.
Amber warnings for snow and wind are also in force for much of the country until 10am on Friday.
Snowfall will grow heavier through Thursday afternoon and evening with 10-20cm likely to settle widely across red alert areas, Met Office chief meteorologist Paul Gundersen said.
Highways England’s head of road safety, Richard Leonard, said: “Gritters are out treating our routes around the clock, but it is still important to drive to the conditions when snow is forecast.
“If you need to travel in the morning, make sure you keep your distance and reduce your speed.”
Scotland has faced the brunt of the extreme weather so far, with police warning the public against travel until the severe amber warning passes at 6pm.
Hundreds of motorists on the M80 near Glasgow reported being stuck for up to 13 hours, with some spending the night in their cars, and others abandoning their vehicles.
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Around 1,000 vehicles were at a standstill, tailing back eight miles in both directions, Police Scotland said.
More than a foot of snow was dumped in some parts of the country – peaking with 34cm of snow in Wittering, Cambridgeshire.
The Met Office said it had likely been deeper than this in some places, but dry, windy conditions had made it hard to measure.
Temperatures dipped as low as minus 10.3C in Kinloss, Scotland, overnight.