my local met office station is Kenley, its about 1.5 miles from me. On Monday it showed the max temp for this friday was 7c, this morning the forecast temp had dropped to 3c and now it is showing 2c, so you can see how the models initially moved the mild air further east but as the week has gone on the cold weather has slowed the mild airs easterly path to the point where it is now further west. Similarly for Saturday, Monday's forcast for precipitation showed Rain all morning, at lunchtime today that had changed to sleet all morning, and this evening it is now showing as snow all morning. It shows that this area is in a very marginal zone where we probably won't get to know the true type of precipitation we will have until it actually happens.
We wait with baited breath to find out.