I expect that will be extended south westwards over the next couple of days!
A good 6z GFS. Would likely lead to:
Sunday: Widespread (potentially prolonged) snow showers (especially across East Anglia)
Monday: Snow showers
Tuesday: Snow showers (becoming lighter and more scattered the further south and west)
Wednesday: Snow event from the South West.
All subject to change of course, and never take the precipitation charts literally (especially in these events). That said, shaping up to be an interesting couple days!