Big Simpsons natural obs from town
trowbridge.a.s , Wednesday 17th February, 2021 11:55AM
Good visibility from town to Hudson Bay Wed am showed two very recent natural soft windslab avalanches in Big Simpsons. Both releasing at about 1950m, ~1.5 to 2.0 ~50-75m at there widest, relatively shallow (~20cm?) and very soft with poor propagation (had similar characteristics to point releases, crowns running down at 45 deg angle and you could tell the surface texture of the snow was quite soft). No other slides visible scoping little Simpsons, lower big Simpsons, front face of Hudson Bay Mountain or the SE aspect above glacier gulch. All those areas showed clear westerly flow wind slab deposits but no releases.
Source: Avalanche Canada MIN