Quick report
Our test performed today included an extended column test as well as a propagation saw test. We perform these tests because we wanted to find out how reactive our persistent weak layer (PWL) formed back in Christmas was. We saw no reactivity in our ECT test and a very small reaction in our propagation saw test from our PWL. However, we did find a new reactive layer in the upper half of the snow pack at around 35 cm. Our extended column test showed a full propagation, which will warrant our attention going forward this season. As the older persistent, weak layer starts to get buried and more snow piles on top, we want to be very mindful of this new reactivity, in the upper snow pack, especially on slopes greater than 30° or higher.
Weather
- Air Temp
- 23*F
- Cloud Cover
- clear
- Wind Loading
- moderate
- Recent Snowfall
- 5cm
- Snow Avail For Transport
- small smounts
Snowpack
2" of fresh snow from night before. We dug our snowpit on a E-SE aspect at 10,950' feet of elevation near widow maker hill on a 30 degree slope. Two tests were performed: Extended Column Test (ECT) and a Propagation Saw Test (PST). ECT test did not show any reaction on our persistent weak layer formed back around Christmas, however we did get a positive reaction on a layer further up in the snowpack around 35 cm from the top which resulted in an ECTP20 at 35cm from the top. Our PST resulted in a small late reaction on both the Persistent weak layer at 65cm as well on our newer layer up higher at 35cm from the top with results of PST 110/120 END@65cm and PST 110/120 END@ 35cm respectively.