Overnight snowfall of 15cm atop another 15-20cm from the day prior. A 4F crust of melt forms below this new snow exists on E-S-W and is supportable. On northerly facing terrain the upper 1m of snowpack is right side up, yet a few hardness changes are noted and this appears to be the denisty inversions of lower density snow sitting below the surface slab forming through the effects of warming and wind. It is a rather relative hardness change of only one step or less. But its enough and the there are plenty of human triggered and natural avalanches to prove there is instability.