BC Zone Observation Report
Friday, November 2, 2018 at 12:00 AM
Vail & Summit County
Vail & Summit County
Popular touring area and slopes above the North Star neighborhood, directly above county road 2.
From the Hoosier pass summit parking lot, the 2 skiers traveled NNW on county road 2. Skiers left road and began touring uphill. Following a diagonal bench on the slope near the base of the hill. apx. 20 meters off the road where the avalanche was triggered.
Ridgeline Wind Speed:
Ridgeline Wind Direction:
NNW of Hoosier Pass Summit ENE Aspect 11,800ft (treeline) Partly Cloudy, 20+mph NW wind.
Area was variable from wind-scoured ground to 2m deep pockets of wind-deposited snow on ENE aspect, at 11,800ft (treeline).
1 avalanche, triggered from below. Wind Slab. Broke on convex rollover on top of slope. Crown ranged from >10cm to apx 2m. Width of crown was 30-40m wide. Bed surface was old snow. A small pocket within the slide stepped down to the ground. The depth of the deposition was apx. 1m deep where Skier 1 was partially buried. With the intention to inspect the snowpack and dig a pit, skier 1 and Skier 2 were spaced apart crossing beneath the slope with Skier 1 in the lead. Skier 1 most likely triggered the avalanche while touring below the slope. Skier 1 yelled avalanche when the slide quietly broke. Only a few inches of snow washed over Skier 1's skis and was tripped, falling downhill, and allowing the toe of the avalanche to slowly cover lower body. Skier 2 was downhill below the bench in the slope where the avalanche stopped. Skier 2 was able to maintain sight of skier 1. The debris accumulated on the bench and stopped. Skier was was moved apx. 3m downhill on the toe of the slide. Skier 1 was able to self rescue. Both skiers had all gear and beacons on.
AS / u
9:00 AM (Estimated)
From the Hoosier pass summit parking lot, the 2 skiers traveled NNW on county road 2. Skiers left road and began touring uphill. Following a diagonal bench on the slope near the base of the hill, apx. 20 meters off the road the avalanche was triggered.
Average Slope Angle:
Maximum Slope Angle:
O - Within Old Snow
Weak Layer Grain Type: