UK snow 'to be heavier than expected' with '5cm per hour' on wayProjections from WX Charts have upgraded the previously predicted 2cm per hour snow for mid-October to 5cm per hour. View Image UK snow 'to be heavier than expected' with '5cm per hour' on wayThe UK's first snow of October is set to be heavier than expected, according to new weather maps and charts. Projections from WX Charts have upgraded the previously predicted 2cm per hour snow for mid-October to 5cm per hour. In Scotland, snowfall is expected across Perth, Inverness, Ross and Cromarty over the course of October 18 and 19. The Beeb goes on, adding: "In Tuesday's update we will probably have a better idea of the movements of the expected high pressure in mid-October."