12Z profiles, especially Herstmonceux and Camborne, show light winds in
the lowest 1000-1500ft, Nottingham less so. Any heavier precipitation,
possibly induced through the interaction of the surface trough, currently
Kendal to Newcastle, and the cold frontal zone may cause an isothermal
layer to be produced. This would mean deeper penetration of snow through
to the surface. MetO are going for more of a risk over towards E.Anglia,
due to quicker cold advection. Leeds already in RASN. It will be an
interesting one to watch.

Joe