UK weather: 'Coldest blast for a year' threatens to bury parts of Britain under a foot of snow
Up to 12 inches of snow are expected in parts of Scotland
Council tells elderly residents to wiggle their toes to stay warm as -8C cold snap looms
'Just wiggling your fingers and toes will help you keep warm,' older locals have been told
Britain on track for warmest year ever on record, Met Office says
It marks the second time this decade Britain has broken its annual temperature record
