Natural triggered avalanche on West facing ridge of second bowl. Deep, large slab slide down to rocks across entire ridge.
Observation: Turnagain
Location: Turnagain Pass - Second Bowl
Date: 1-3-2013
Time: ~ 1330
Location: Turnagain Pass, Second Bowl
Weather: Sunny/Partly Cloudy
Wind: S, 10-20 mph
Observed two avalanches on Second Bowl ridge line.
1) A natural avalanche (appeared naturally triggered) on West aspect ridge of Second Bowl. Large, deep slab
avalanche down to rocks. Avalanche was across entire mountain face. Observed from a distance.
2) A natural avalanche on NW aspect upper ridge, ~ 200′ below Seattle Ridge weather station. ~ 30′ across,
~2-3′ deep. ~ 30 vertical feet. Wind loading was evident.