ALSAR AST 1

South Columbia

tj.boast , Tuesday 4th February, 2025 4:15PM

CTE 3 SC dwn 25 on SH 2.0 The initial profile site had to be abandoned after digging caused the targeted SH to collapse. (Easy compression test results score of 3, failure character sudden collapse, failing on surface hoar ~2.0-2.5cm in size) The recently buried SH layer is acting with touchy reactivity throughout the majority of the cut block we travelled through. Often walking off the FSR would cause large collapses, whumpfs and shooting cracks. Several small unsupported convexities had failed naturally, likely at some point in the storm.
2 x Sz 2.0 Na Storm Slab avalanches observed on S-SE aspects. Suspect most recently buried SH to be the failure plane.

Source: Avalanche Canada MIN

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