Snow storms from Siberia blasted Britain and Ireland with the worst weather since 1991, trapping several hundred motorists on roads in Scotland, closing thousands of schools, grounding planes and halting trains.
With up to 90 cm of snow and temperatures as low as minus 10.3 Celsius in Scotland, Britain and Ireland issued their most severe red warnings which advise people to stay at home as travel is too dangerous.
Dozens of people were trapped in their cars on the M80 motorway between Glasgow and Edinburgh, with several hundred having been standed on the road overnight. Flights and trains were cancelled across both Britain and Ireland - with similar transport problems in continental Europe.
More freezing snowy weather was forecast as Storm Emma approaches from Portugal and France, with warnings of treacherous weather across southern England and Ireland.