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Observations

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


USFS SNOW AND AVALANCHE HOTLINE (907) 754-2369
If you have comments regarding CNFAIC operations or winter recreation management, please email kevin@chugachavalanche.org
© 2014 Chugach National Forest Avalanche Information Center. All rights reserved.
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