Nearly four inches of snow could fall in southern England within days - potentially causing travel chaos.The UK will see at least another seven days of arctic weather, in which temperatures could plummet to as low as minus 10C, wintry downpours and "freezing fog".

Nearly four inches of snow could fall in southern England within days - potentially causing travel chaos.The UK will see at least another seven days of arctic weather, in which temperatures could plummet to as low as minus 10C, wintry downpours and "freezing fog".