The United Kingdom is bracing for a continuous 21-hour snowstorm, with initial weather predictions indicating snowfall beginning in Scotland on December 15. The snow is expected to move southward, affecting Northern Ireland, Wales, and parts of northern England. By 9 am, the heaviest snowfall is projected to hit southern Scotland’s Galloway Forest Park, the Lake District, and the Pennines in northern England.
Northern Ireland is also likely to experience a light dusting of snow around the same time. Snowfall is anticipated in North Wales, particularly Snowdonia, by 3 pm on December 15, with snow showers also expected in Ireland, including a chance of snow in Dublin.
Areas in the UK that evade snowfall can expect rainfall instead as the weather system progresses southward. Central and northern England are forecasted to endure heavy rain throughout the day. By 9 pm on December 15, snow coverage maps reveal the extensive impact of the snowstorm.
Following 21 hours of snow showers, snow accumulation is anticipated in North Wales, Northern Ireland, northern regions of England including west and North Yorkshire, and most parts of Scotland. The BBC Weather forecast for December 15th to 28th suggests a low confidence outlook due to atmospheric disturbances, with a possibility of high pressure dominating near the UK and Ireland, leading to potentially drier conditions before Christmas.
The Met Office also predicts a chance of snowfall in certain UK areas during the latter half of December. Their outlook for December 16th to 30th indicates a higher likelihood of dry weather due to potential high pressure systems, with the possibility of overnight fog and frost. While some rain, showers, and strong winds are expected, especially in the west, hill snow may occur mainly in the north. Overall, temperatures are likely to be near or slightly above average, with the possibility of colder spells if prolonged settled conditions develop.