Exact date 21-hour snow barrage will blast Brits as UK weather maps turn blue

The UK is bracing for a 21-hour snowstorm, with advanced weather maps predicting when and where the white stuff will hit first as many still hope for a white Christmas Snow is heading this way (Image: WXCHARTS)

The UK is set for a 21-hour snow blitz, with early weather charts forecasting when and where the first flakes will fall. The snow will hit Scotland on December 15 is then predicted to gradually shift southwards, impacting Northern Ireland, Wales and parts of northern England.

By 9am, the heaviest snowfall, as shown by GFS model maps, will hit southern Scotland's Galloway Forest Park, along with the Lake District and the Pennines in northern England. A lighter dusting is also expected in Northern Ireland around this time.

North Wales, especially Snowdonia, is due to be bla