UK weather: Britain to be blasted by Christmas storms after freak shift over Arctic
The weather phenomenon is triggered when shifts in global wind patterns disrupt the circular flow of air high over the North Pole
Snow
Met Office issues 16-hour amber warning as 'blizzard conditions' to bring heavy snow
Large parts of Yorkshire and the North East are set to be hit by heavy snowfall
Met Office issues major 15-hour snow and ice warning as mercury plummets
Several yellow weather warnings for snow and ice have been put in place across the country on Tuesday
