Professional Observer:   Kevin Wright
Location: Turnagain -   Seattle ridge
Date: Nov 21st, 2012
Seattle ridge natural avalanche
This full depth natural avalanche happened sometime after the snowfall on Sunday 11-18. The
entire region has very weak facets at the ground.
The picture of with cracks near the ski track shows the visual evidence left behind after an
audible "whoomph" as the snowpack collapsed. If the slope had been steeper where the
collapse happened, it would have avalanched.
|Photo 1. Natural avalanche on north face of Warmup bowl|
|Photo 2. Collapse, shooting cracks near skin track|
|Lat: 60.8157 Long: -149.2196|
Professional observers are employees of organizations specializing in avalanche forecasting, mitigation and/or education. Some examples include: CNFAIC staff, AKDOT and AKRR avalanche program employees, AAS/AAI/AIARE level 2 and above avalanche instructors.
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