The colder air is moving in from the north currently and this shows up nicely on the precipitation type radar with more evidence of wintriness. The models tend to be a bit rubbish at modelling convective precipitation, understandably due to its nature, so it’s tricky to work out what is incoming much in advance. I would be hopeful of seeing snow here today in Aberdeen but how much and when is a different matter! I just hope the westerly component doesn’t kill off too much of the precipitation before it gets here.