Touchy Wind Slabs on the Bonney Moraines
Jeffrey Mitchell,
Sunday 6th February, 2022 6:45PM
Mountain Conditions Report
<p>Guiding on the Bonney Moraines today and have some observations to share. </p> <p>30-40cm of low density snow on the surface at BTL. Isolated pockets of wind slab at TL on N aspects. We got multiple large settlements as we reach the top of the skiers right moraines. We observed a Sz 1.5 avalanche 15-30cm deep, bed surface was SH to 12mm and facets. </p> <p>Test Profile at 1900m on a NW aspect on the moraines<br /> CTE(3) down 15 SP on SH x 2<br /> CTM(12) down 40 SP on SH x 2<br /> CTH(21) down 80 SP on SH x 2</p> <p>We skied conservative supported terrain to 25 degrees. Ski cut on small roll produced no results. 2nd skier down triggered a Sz 2 with no involvement. Avy was accidentally triggered directly below skier and fractured on the initial ski cut. </p> <p>We also triggered a Sz 1 on the lower moraine, there was no wind affect. Daytime warming settled the HST into a very soft slab.</p>Location: 51.21978263 -117.54176530