The forces of the so called 'Beast from the East' and 'Storm Emma' have combined across the United Kingdom, closing roads, rail services and some of the region's busiest airports.
More than 500 flights have been cancelled across England and Scotland, 157 of those at London's Heathrow.
The low cloud began rolling in two days ago. Its progress was captured on camera as snow cloud moved in across London.
The video above was taken on top of the Novotel building over the last 48 hours.
The Beast from the East came from Siberia and is the worst to hit the United Kingdom since 1991.
London's busiest railway station, Waterloo, showed more than half of trains cancelled or delayed at the height of rush hour.
Video posted on Instagram by user antfitz86 shows just how poor conditions were when he landed in Edinburgh with the runway barely visible in the snowy conditions.
Budget airline Ryanair this morning cancelled all scheduled flights to and from Midlands, Edinburgh, Glasgow and Leeds.
The UK Met Office has issued a red warning for Scotland and Wales, meaning they believe the storm now poses a danger to life.
Some flights from the United States into Britain were diverted yesterday, some being sent to Germany.
At this stage no flights from New Zealand to London have been affected but travel agents advise passengers heading to the UK to keep up-to-date with airport conditions.
Newshub Travel will be posting any major closures or cancellations via our Twitter account.