Really badly lol - unless the conditions are perfect. City centre/Leith needs uppers (the temps on the 850hpa charts) to be lower than -7 to be certain of snow in my experience. In the set up shown for Thurs/Friday the wind needs to be coming from the north east, too much of an easterly direction and it brings the warmth off the sea. Ideally we would want it to have gone over Fife first. Obviously out of town and up a bit, e.g. Dalkeith, Penicuik, Bathgate etc. do very well indeed.