I took ~90 measurements in a grid across my backyard and came up with 3.0", which seems about right considering the drifts and scoured areas. The gauge caught 0.40", which means the ratio is terrible, as it always is when the wind is strong. The kuchera map predicted a ratio well above 10.
This stuff was a major pain to clean up. It's dense, with a layer of either wet snow or ice on the bottom.