Avalanche

North Face of Snodgrass Mt. Fourth Bowl - More Spunk

Audrey CasoGunnison
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Observation photo 1Observation photo 2Observation photo 3Observation photo 4

Quick report

Snodgrass Mt Third Bowl, North Face, near 10,600 ft. BTL There has been no new snow since December 14th with today's weather forecast being high of 35°F with light NW winds. Signs of instability confirmed today's forecast of possible persistent slabs with strong over weak slabs still being an issue. This was observed through both long and short-column tests (shown in the attached photos). During the CT, tapping the wrist five times resulted in the fracturing of the upper six inches of the soft snowpack, specifically at the surface hoar layer confirming non-propagating results. After five shoulder taps the ECT, confirmed propagating results at the bottom weak facet layer at 82 cm. Due to these results, we chose to avoid skiing on this terrain and instead skied on an adjacent slope with a lower-degree incline that had uniformly soft snow layers. The outcomes indicate unstable conditions with spreading effects at the faceted layer on north-facing slopes with a 40-degree incline. This supports today's prediction of likely persistent slabs caused by the layering of strong over weak snow, with previously drifted snow at higher elevations posing a greater risk.

Avalanche

Snodgrass Mt around Third Bowl, North Face, near 10,200 ft. BTL Persistent slab avalanche with a crown of about 2 ft. thick stretching about 60 ft. wide Unsure if it was natural or triggered or if anyone was caught.