We did not have time to do extended column tests but given our compression test results these would have been helpful to see if any of our weak layers would have propagated across a column.

My hunch is that there was considerable danger of propagation in the wind slab layer (beneath the top 20 cm of snow at 200 cm in our pit) because we were able to see some cracking in wind slabs on various northern aspects throughout the day Monday. Additionally, there was considerable danger of propagation on the remaining weak layers. Even though we did not witness any warning signs (cracking, collapsing) on these layers, the CT taps were in the high middle range (15-25) and we had some sudden collapses on these layers with a Q1 shear quality. As our pit was dug on a 20-25 degree slope the block did not readily slide off the column but I suspect it would have on a couple of our CT's had it been over 30 degrees.

With warm temps (mid 30s to mid 40s) forecast for Tuesday/Wednesday I suspect danger will lower during this period and our snowpack will begin to develop some features of spring.