So the 06z run is starting to pick up the snow showers very clearly. The following locations are where snow seems to be most likely to be disruptive. That doesn't mean to say that it will be ruled out elsewhere. I'd be here to the next model run if I tried to be really comprehensive about where snow will fall.
Monday - East Anglia and Kent. Later perhaps East Sussex too.
Tuesday -Early on All the way down the east coast but especially, the north east and through Lincolnshire. Then draw a line through the Wash and diagonally through the Midlands. Later on, through Kent too. However it is also likely that many other places will see snow too and this could be disruptive.
Wednesday - the east coast again, but I think this time the south may get a bit of respite. Further north the snow could penetrate far in
and to affect many people.
Thursday - the NE and southern Scotland, perhaps further north in Scotland too.
Then southerners, take careful note - Thursday evening is when things may begin to get very disruptive. There continues to be a huge amount of uncertainty about this,
Friday - the uncertainty continues but it's possible that by Friday morning things could be very nasty indeed, with blizzard like conditions and freezing rain in the south. This system will move north through England through Friday. It is quite possible that this will turn to rain on the southern edge. It entirely depends on how far this system moves north.
I think by saturday in the south things will look milder and perhaps wet, but really until we get a handle on Friday there is no point in speculating,.
For people who think that this thread is an over reaction: bite me. 