Devastating Storm Christoph is causing widespread chaos across the UK and forecasters have warned that further flooding, a foot of snow and blizzards are still to come.
More than 500 flood warnings or alerts are in place up and down the country, and Met Office warnings for almost 3ins of rain, heavy snow and icy surfaces will remain in place until at least Friday afternoon.
Thousands of people have been forced to flee their homes amid England's Covid-19 lockdown, and a factory in Wales which makes the Oxford University/AstraZeneca coronavirus vaccine has been evacuated due to flooding.
Some 2,000 properties in the East Didsbury, West Didsbury and Northenden areas of Greater Manchester were due to be evacuated because of rising water levels, the city council said.
Click here for our live blog with the latest forecasts and updates on Storm Christoph.
Residents in Maghull were advised to leave their properties as soon as possible after a severe flood warning was issued, Sefton Council said.
People were also asked to leave their homes in parts of Ruthin and Bangor on Dee in North Wales, and Maghull in Merseyside.
North Wales Police said its officers were helping the fire service to evacuate homes in Ruthin, Denbighshire, and urged people to avoid the area.
The force also urged residents of Bangor on Dee to head to Ysgol Sant Dunawd for shelter after the severe flood warning was issued for the area.
Have you been affected by Storm Christoph flooding? Send your story and photos to [email protected]
Wrexham Council said it was "working with partners to address any need for temporary rest centres for residents likely to be affected".
It comes as heavy rain and snow continued to fall across England and Wales, with many rivers at "dangerously high levels", the Environment Agency said.
Four "severe" flood warnings, meaning there is a danger to life, were issued by the agency for the River Mersey at Didsbury and Northenden, and in Maghull.
A fifth was issued by Natural Resources Wales for Bangor on Dee.
Prime Minister Boris Johnson earlier urged people to heed the flood warnings and evacuate their properties when told to do so.
Downing Street said Covid-secure facilities would be available for any people forced to evacuate as a result of the weather.
Is there a flood warning or alert for my local area?
As of 9am on Thursday, there were four severe flood warnings, 195 flood warnings and 223 flood alerts in England. The list is being updated regularly.
The four severe flood warnings, meaning "severe flooding" and "danger to life", were issued for:
For a complete list of flood warnings ("flooding expected, immediate action required") and flood alerts ("flooding is possible, be prepared") in England, click here.
In Wales, a severe flood warning was issued for the community of Bangor on Dee.
There were 33 flood warnings and 47 flood alerts at 9am. Click here for a full list.
Scotland had issued six flood alerts.
Northern Ireland uses a flood map which shows the risk by area.
Is my local area under a severe weather warning?
The following Met Office weather warnings were in place as of 9am. There were two yellow warnings for snow, two for ice and one for rain.
The dangers and disruption could include rural communities being cut of roads become impassable, power cuts, and travel delays or cancellations.
When: 12am on Thursday to 12pm on Friday.
Where: Angus, Perth and Kinross, Aberdeenshire, Moray and Highland.
The Met Office said: "Wet weather associated with Storm Christoph will push in from the North Sea and Moray Firth early on Thursday and turn to snow, even at modest elevations.
"Snow accumulations of 5-10cm are possible at low-levels whilst 10-20cm snow is likely above around 200m.
"In addition, strong winds will develop on Thursday, leading to blizzard conditions at times over higher ground, and icing on infrastructure, such as power lines."
When: Wednesday at 12pm to 10am on Thursday.
Where: Durham, Northumberland, Cumbria, Angus, Clackmannanshire, Dundee, Falkirk, Fife, Perth and Kinross, Stirling, Dumfries and Galloway, East Lothian, Edinburgh, Midlothian Council, Scottish Borders, West Lothian, East Ayrshire, East Renfrewshire, North Lanarkshire, South Ayrshire and South Lanarkshire.
The Met Office said: "Persistent rain over Scotland and the far north of England will increasingly fall as snow above around 100m during Wednesday afternoon and especially overnight into Thursday.
"A few centimetres of wet snow is expected and above 200m 10-15cm may settle with perhaps 20-30cm above 400m.
"Rain is more likely on lowest ground near the east coast and may bring some localised surface water flooding."
When: 12am on Thursday to 12pm on Friday.
Where: Aberdeenshire, Moray, Highland and Orkney Islands.
The Met Office said: "Persistent, heavy rain associated with Storm Christoph is expected to affect the north and northeast of mainland Scotland as well as Orkney early on Thursday before slowly pulling away on Friday.
"This rain is expected to turn to snow further inland but in the warning area it will remain mostly as rain.
"20-40mm of rain is likely quite widely with perhaps as much as 50-70mm across the far northeast of Aberdeenshire.
"In addition, this rain will be accompanied by coastal gales on Thursday with gusts of 50mph, perhaps 60mph, along north-facing coasts posing an additional hazard."
When: 1am to 10am on Thursday.
Where: Derbyshire, Blackburn with Darwen, Cheshire, Chester, Cumbria, Greater Manchester, Halton, Lancashire, Merseyside, Warrington, Shropshire, Staffordshire, Stoke-on-Trent, North Yorkshire, South Yorkshire, West Yorkshire, Ceredigion, Conwy, Denbighshire, Flintshire, Gwynedd, Isle of Anglesey, Powys and Wrexham.
The Met Office said: "Following clearance of heavy rain, and in places snow, ice may form quite rapidly on some surfaces."
When: 6pm on Wednesday to 10am on Thursday.
Where: All of Northern Ireland.
The Met Office said: "Occasional wintry showers falling onto frozen surfaces brings the potential for icy stretches Wednesday evening, overnight and into Thursday morning.
"At lower levels most of the showers will be a mix of rain, sleet or wet snow, but on high ground above 200m, 1-3cm of snow may fall in places especially across the north.
"Smaller snow accumulations can't be ruled out at lower levels."
Met forecaster John Griffiths said Aberllefenni in Wales had seen the UK's highest amount of rainfall from Storm Christoph, with 187.8mm (7.4ins) dumped over the last 56 hours.
He added Bolton in Greater Manchester recorded the highest rainfall in England at 150.4mm (just under 6ins) over the same amount of time - more than the region's average for the entire month of January.
Mr Griffiths said although flooding was going to be an "ongoing issue" for the UK over the next few days, it was "generally an improving picture".
Flooding has blocked the East Coast Main Line between Darlington and York, with a bus replacement service being set up, train operator LNER said.
There were also warnings that trains between Leeds and York could be affected due to disruption caused by flooding.
The line between Rochdale and Walsden in West Yorkshire has also been blocked due to floods.