Some parts of the British Isles have seen an upgrade if you are looking for a white Christmas. However this only applies for Northern and Western upland counties. Elsewhere, and for these areas also, eyes turn to the potential for very stormy conditions as the jet stream fires up. The polar vortex is starting to load its cranks and as a result, the risk of very stormy unsettled and rather wet phase is likely around and shortly before / after Christmas.
See the risk of a white one for your area at our map.
What is known in weather terms as a polar maritime flow, is possible between Christmas Eve and Boxing day, bringing a risk of wintry showers to low lying parts of Northern England, North Wales, Northern Ireland and Scotland, with significant falls of more than 5cm to higher ground. There may also be some transient snow to hills further South, however this mainly restricted to the hills above 200 metres of elevation.