Mega 420-mile wall of snow forecast to smash Britain as mercury hits -7C

A significant weather event is anticipated for the UK, with forecasters predicting a large wall of snow stretching approximately 420 miles. This phenomenon is expected to coincide with plummeting temperatures, with mercury potentially hitting -7C in some areas. Scotland and the north of England are predicted to experience the most substantial snowfall, with cities like Glasgow, Edinburgh, and Newcastle potentially receiving four to eight inches. The maps released by WXCharts, using MetDesk data, indicate that this snowy band could also affect parts of the east and southeast of England, including London, around November 20th. While snow depth and exact timing are subject to uncertainty, the forecast suggests a real possibility of significant snow due to a combination of cold air from the north and east meeting moist fronts. This scenario can lead to precipitation falling as snow rather than rain, especially when overnight temperatures in the north drop below freezing. The Met Office notes that the key ingredients for such snow events are very cold surface air, moisture-laden fronts, and the freezing level dropping close to the ground. A band of moisture from the Atlantic or North Sea interacting with a bitterly cold air mass could create this extensive snow arc. Consequently, travel disruption is highly likely, with potential delays and closures on roads and railways. Residents are advised to prepare by ensuring they have adequate heating and storm supplies, clearing pathw... download the app to read more