About 15cm of snow that fell over the past week sits over a variety of old surfaces: melt-freeze crusts exist on all aspects at lower elevations as well as on south-facing slopes higher up, and well-settled powder is found on shaded aspects in the alpine. Weak surface hoar crystals (size 3-4mm) are sandwiched between the old surfaces and the newer snow. The distribution of the surface hoar seems to be up to treeline on all aspects and on sheltered features in the alpine. This upper snow pack structure will be the big thing to watch as the overlying slab develops. I expect to see gradually increasing reactivity in the surface hoar interface with incremental loading and higher winds forecast for this week. Check out our Forecaster's Blog for some thoughts on incremental loading. The mid and lower snowpack is generally well settled and strong.