HIRLAM is especially good for those of us in NW London (within M25), 3-5cm of snow.
https://www.wxcharts.com/?panel=default&model=hirlam,hirlam,hirlam,hirlam&region=uk&chart=winteroverview,winteroverview,wind10mkph,snowdepth&run=12&step=048&plottype=10&lat=52.389&lon=3.744&skewtstep=0