The snow warning is in place for eastern Wales, although it appeared to be also causing problems in the north west.
The Met Office snow warning for north east Wales is in place from 09:00 GMT on Friday with the possibility of travel disruption.
The Met Office has issued a yellow snow warning for the East of England, meaning the public should be aware of more disruption to come.
The Met Office has issued an amber snow warning for mid, north and east Devon, and a yellow warning for snow and ice for the whole county.
In Wales, more than 120 schools closed - mostly in the south Wales valleys - and a new snow warning has been issued for south east Wales.
He said the red snow warning remained in place with severe gale force winds and blizzard conditions expected to continue throughout the day and overnight, with only a slow improvement expected on Tuesday.
The Met Office later issued a severe snow and ice warning for Grampian, the Highlands, Orkney and Shetland, Angus, East Lothian and the Borders.
Republicans, including U.S. Treasury Secretary John W. Snow , are warning that a failure to extend the cuts will send the wrong message to the financial markets at a time when Hurricane Katrina is already weakening the economy.
The Met Office also had a rare red warning for snow and blizzards in part of the Brecon Beacons and Black Mountains while the rest of the country had an amber warning.
The Met Office issued a rare red warning warning of snow and blizzards on Thursday.
The Met Office has put out a renewed warning of snow for eastern and south west Scotland.
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It has issued an amber warning of snow saying drivers should be prepared to alter travel plans.
The Met Office has issued an amber "be prepared" warning for snow disruption in north-east England, Yorkshire and Humber, and the East Midlands.
The Met Office has issued a yellow warning of snow and ice for the West Midlands, advising traffic conditions may be difficult and dangerous.
An updated "be aware" warning for snow was issued by the Met Office for parts of Gwynedd, Conwy, Denbighshire, Flintshire, Wrexham, and north Powys.
The office has also issued a yellow warning of snow and ice for most of the UK and advised traffic conditions may be difficult and dangerous.
The Met Office said a yellow warning for snow was in place, and the afternoon snow was set to be more persistent than the morning's flurries.
The Met Office has issued a severe weather warning for South East England for Friday, warning of snow throughout the region - including much of East and West Sussex - and a danger of some drifting.
The Met Office has issued a severe weather warning for heavy snow across the west country on Friday.
Vehicles, including state police cruisers, were stuck in the deep snow, state police said, warning that stranded drivers should expect long waits for tow trucks.
Frankfurt - Europe's third largest airport - earlier closed its runways while snow was cleared, and is now warning of possible delays to flights.
Heavy snow is expected in Leicestershire, with an aamber warning issued by the Met Office.
Motorists in Herefordshire are being warned to expect more snow as the Met Office issued a yellow weather warning.
The Met Office has issued an amber weather warning across Yorkshire and said "significant snow accumulations" were likely on higher ground.
There is a Met Office yellow warning - meaning be prepared - for snow in Carmarthenshire, Bridgend, Swansea, Neath Port Talbot, Cardiff and Rhondda Cynon Taf.
BBC: Wales snow: Hazardous road conditions as snow moves west
The Met Office said a yellow warning for severe weather remained in place but the snow would ease off throughout the day.
The Met Office has issued an amber warning for the West Midlands and said sleet and snow will spread across the area throughout the afternoon with heavy rain expected to follow overnight.
Heavy snow is falling in Wales, where a rare Met Office red warning for severe disruption has been issued.
There is an amber warning for Northern Ireland and most of England, with snow also due in parts of Scotland.
Several inches of snow fell during Sunday and a yellow "be aware" ice warning is now in place for the Eastern region.
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