Explosive triggered persistent slabs at Irwin

Location: Kebler Pass Area
Date of Observation: 01/27/2016
Name: Irwin Guides
Subject: Explosive triggered persistent slabs
Aspect: South West, West
Elevation: Near/ Above treeline

Avalanches: Significant explosive results (hand shots to larger 9£ AB) F to 1F+ (40-125cm slab) resting above large, moist 4-8mm striated depth hoar on Upper Upper West Wall (SW and West aspects)
Weather:
Snowpack: Beautiful low density powder from yesterday’s storm, minimal wind effect. Afternoon temperatures remained below 20ºF, helped keep surfaces cold on higher terrain, no crust formation on westwall.

1/26. Explosive triggered persistent slabs at Irwin.

1/26. Explosive triggered persistent slabs at Irwin.

1/26. Explosive triggered persistent slabs at Irwin.

1/26. Explosive triggered persistent slabs at Irwin.

1/26. Explosive triggered persistent slabs at Irwin.

1/26. Explosive triggered persistent slabs at Irwin.

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