It would seem, with all the computing power availible out there today they could make a snowfall algorithm that actually works.
Instead we have 10:1 maps and Kuchara maps.
10:1 Maps: Heavy sleet for a few hours, you get a foot of snow.
Kuchara Maps: 0.12" qpf with a temp of 6F, 100:1 ratios, you get a foot of snow.
Both algorithms clearly are going to exagerate totals in this case. There could and should be something better.