Brits have been warned to brace themselves for an arctic blast which could disrupt parts of the country with 16 inches of snow. New weather maps, by WXCharts, have revealed what areas are most likely to be blanketed white by the end of this week. The maps used the colour purple to highlight the places which would be struck by the wintry conditions . According to the maps, major UK cities including Birmingham and Manchester could experience harsh weather . The data shows that a large part of