Heavy overnight snow has caused widespread disruption across the UK as the new year continues to get cold.
Several major airports have been forced to suspend flights and some major roads in northern England remain closed.
The Japan Meteorological Agency said some rural areas could receive up to 40 centimeters of snow at elevations above 300 metres, cutting off traffic before the situation eases later on Sunday.
Manchester Airport and Liverpool's John Lennon Airport closed their runways on Sunday morning due to heavy snowfall.
Manchester Airport said its teams were working to clear the snow “as quickly as possible” but were hampered by “heavy snowfall” at around 7am.
Birmingham Airport, which had been closed for several hours overnight for “snow removal and safety reasons”, said it was operating “as usual” as scheduled on Sunday.
Bristol Airport reopened around 11pm on Saturday, but warned of continued delays as aircraft were misaligned following flight cancellations.
All affected airports urged passengers to check with their airlines for the latest information.
Highways has warned that up to 25cm of snow could affect roads in northern England.
The A628 Woodhead Path, which connects Greater Manchester and South Yorkshire via the Peak District, was closed overnight in both directions between the A616 at Frauch and the A57 at Hollingworth.
The A66 in County Durham and Cumbria was closed between the M6 and A1M due to the situation, while the M1 northbound between J30 Worksop and J31 Sheffield in South Yorkshire was hit by a collision involving an HGV. Two of the four lanes were closed to traffic.
National Railways said the line between Leeds and Halifax via Dewberry was closed in both directions and disruptions on northern routes were expected until Monday.
Avanti West Coast trains to and from Liverpool Lime Street have been canceled due to problems at the depot and disruptions are expected until midday.
One lane of the northbound A3 in Hampshire was closed on Sunday morning due to flooding from overnight snowfall, Highways said.
The Environment Agency issued three flood warnings on Sunday morning for the Rivers Taw and Torridge in Devon and the River Blue in Somerset.
National Grid said it was working to restore power after power was cut across the Midlands, south-west England and south Wales on Saturday. The company's live map shows power outages across the region including Birmingham, Bristol and Cardiff on Sunday morning.
Two Amber weather warnings have been issued by the Met Office for England and Wales, with 3cm to 7cm of snow expected in most affected areas, with occasional rain in low-lying areas.
The Met Office said 12 centimeters of snow had fallen in Bingley, West Yorkshire, by 7am on Sunday, while Shap, Cumbria, and Capel Currig, Gwynedd, each had 10 centimeters of snow.
An Amber warning for snow and freezing rain is in place until midday on Sunday, covering much of Wales and the Midlands, as far north as Manchester.
The forecaster said 15 to 30 centimeters of snow could fall in the highlands of Wales and the southern Pennines, and calm air could lead to rapid melting in the southern parts of the warning area into Sunday. .
A second Amber warning for snow is in place until midnight on Sunday, covering much of the north of England, including Leeds, Sheffield and the Lake District.
Highways also warned that rain could initially fall on frozen ground and lead to ice, with higher-lying areas including the Cotswolds and Peak District most at risk.
A yellow warning for snow and ice will cover most of the rest of England and Wales until midnight, and a similar warning will cover much of Northern Ireland from 6pm on Sunday.
A yellow warning for snow and snow is in place for northern Scotland until 10am on Sunday, and a yellow warning for snow and ice is in place for central east Scotland until 6am on Monday.
A new yellow rain warning has been issued for southern England, from Cornwall to Kent, which came into effect on Sunday morning and will remain in place until 9am on Monday.
There is also a yellow warning for rain for large parts of Wales and the West Midlands from 6am to 9pm on Sunday.
Health and Safety Executive continues to issue a cold weather alert for all of England ahead of a week of cold temperatures.
The death toll is likely to rise as the Amber Alert was issued on Thursday and will continue until Wednesday, authorities said.
Councils in London and southern England have activated emergency measures, including extra accommodation to keep rough sleepers safe during the cold snap.
The Met Office expects the sleet and snow to continue northward on Sunday, with the heaviest effects expected in northern England and southern Scotland.
After a period of cold rain, the weather in the south changes to milder weather.
Frost and ice patches will persist into the early part of the week, but Monday and Tuesday will be drier with continued sunshine and scattered wintry showers. Wednesday will be mostly cloudy with some sunshine.
A chance of winter showers in the south early Thursday, followed by clouds and rain in the west on Friday, with the weather mostly calming down starting next weekend.
